Rename seq# powered optimistic concurrency control parameters to ifSeqNo/ifPrimaryTerm (#36757)

This PR renames the parameters previously introduce to the following:

### URL Parameters
```
PUT twitter/_doc/1?if_seq_no=501&if_primary_term=1
{
    "user" : "kimchy",
    "post_date" : "2009-11-15T14:12:12",
    "message" : "trying out Elasticsearch"
}

DELETE twitter/_doc/1?if_seq_no=501&if_primary_term=1
```

### Bulk API
```
POST _bulk
{ "index" : { "_index" : "test", "_type" : "_doc", "_id" : "1", "if_seq_no": 501, "if_primary_term": 1 } }
{ "field1" : "value1" }
{ "delete" : { "_index" : "test", "_type" : "_doc", "_id" : "2", "if_seq_no": 501, "if_primary_term": 1 } }
```

### Java API
```
IndexRequest.ifSeqNo(long seqNo)
IndexRequest.ifPrimaryTerm(long primaryTerm)
DeleteRequest.ifSeqNo(long seqNo)
DeleteRequest.ifPrimaryTerm(long primaryTerm)
```

Relates #36148
Relates #10708

rest-api-spec/src/main/resources/rest-api-spec/api/delete.json

@@ -43,11 +43,11 @@
           "type" : "time",
           "description" : "Explicit operation timeout"
         },
-        "if_seq_no_match" : {
+        "if_seq_no" : {
           "type" : "number",
           "description" : "only perform the delete operation if the last operation that has changed the document has the specified sequence number"
         },
-        "if_primary_term_match" : {
+        "if_primary_term" : {
           "type" : "number",
           "description" : "only perform the delete operation if the last operation that has changed the document has the specified primary term"
         },

rest-api-spec/src/main/resources/rest-api-spec/api/index.json

@@ -57,11 +57,11 @@
           "options" : ["internal", "external", "external_gte", "force"],
           "description" : "Specific version type"
         },
-        "if_seq_no_match" : {
+        "if_seq_no" : {
           "type" : "number",
           "description" : "only perform the index operation if the last operation that has changed the document has the specified sequence number"
         },
-        "if_primary_term_match" : {
+        "if_primary_term" : {
           "type" : "number",
           "description" : "only perform the index operation if the last operation that has changed the document has the specified primary term"
         },

rest-api-spec/src/main/resources/rest-api-spec/test/index/30_cas.yml

@@ -26,8 +26,8 @@
       index:
           index:            test_1
           id:               1
-          if_seq_no_match:       10000
+          if_seq_no:       10000
-          if_primary_term_match: $primary_term
+          if_primary_term: $primary_term
           body:   { foo: bar2 }
 
  - do:
@@ -35,16 +35,16 @@
       index:
           index:            test_1
           id:               1
-          if_seq_no_match:       $seqno
+          if_seq_no:       $seqno
-          if_primary_term_match: 1000
+          if_primary_term: 1000
           body:   { foo: bar2 }
 
  - do:
       index:
           index:            test_1
           id:               1
-          if_seq_no_match:       $seqno
+          if_seq_no:       $seqno
-          if_primary_term_match: $primary_term
+          if_primary_term: $primary_term
           body:   { foo: bar2 }
 
  - match: { _version: 2 }

server/src/main/java/org/elasticsearch/action/bulk/BulkRequest.java

@@ -78,8 +78,8 @@ public class BulkRequest extends ActionRequest implements CompositeIndicesReques
     private static final ParseField RETRY_ON_CONFLICT = new ParseField("retry_on_conflict");
     private static final ParseField PIPELINE = new ParseField("pipeline");
     private static final ParseField SOURCE = new ParseField("_source");
-    private static final ParseField IF_SEQ_NO_MATCH = new ParseField("if_seq_no_match");
+    private static final ParseField IF_SEQ_NO = new ParseField("if_seq_no");
-    private static final ParseField IF_PRIMARY_TERM_MATCH = new ParseField("if_primary_term_match");
+    private static final ParseField IF_PRIMARY_TERM = new ParseField("if_primary_term");
 
     /**
      * Requests that are part of this request. It is only possible to add things that are both {@link ActionRequest}s and
@@ -350,8 +350,8 @@ public class BulkRequest extends ActionRequest implements CompositeIndicesReques
                 String opType = null;
                 long version = Versions.MATCH_ANY;
                 VersionType versionType = VersionType.INTERNAL;
-                long ifSeqNoMatch = SequenceNumbers.UNASSIGNED_SEQ_NO;
+                long ifSeqNo = SequenceNumbers.UNASSIGNED_SEQ_NO;
-                long ifPrimaryTermMatch = 0;
+                long ifPrimaryTerm = 0;
                 int retryOnConflict = 0;
                 String pipeline = valueOrDefault(defaultPipeline, globalPipeline);
 
@@ -382,10 +382,10 @@ public class BulkRequest extends ActionRequest implements CompositeIndicesReques
                                 version = parser.longValue();
                             } else if (VERSION_TYPE.match(currentFieldName, parser.getDeprecationHandler())) {
                                 versionType = VersionType.fromString(parser.text());
-                            } else if (IF_SEQ_NO_MATCH.match(currentFieldName, parser.getDeprecationHandler())) {
+                            } else if (IF_SEQ_NO.match(currentFieldName, parser.getDeprecationHandler())) {
-                                ifSeqNoMatch = parser.longValue();
+                                ifSeqNo = parser.longValue();
-                            } else if (IF_PRIMARY_TERM_MATCH.match(currentFieldName, parser.getDeprecationHandler())) {
+                            } else if (IF_PRIMARY_TERM.match(currentFieldName, parser.getDeprecationHandler())) {
-                                ifPrimaryTermMatch = parser.longValue();
+                                ifPrimaryTerm = parser.longValue();
                             } else if (RETRY_ON_CONFLICT.match(currentFieldName, parser.getDeprecationHandler())) {
                                 retryOnConflict = parser.intValue();
                             } else if (PIPELINE.match(currentFieldName, parser.getDeprecationHandler())) {
@@ -414,7 +414,7 @@ public class BulkRequest extends ActionRequest implements CompositeIndicesReques
 
                 if ("delete".equals(action)) {
                     add(new DeleteRequest(index, type, id).routing(routing)
-                        .version(version).versionType(versionType).setIfMatch(ifSeqNoMatch, ifPrimaryTermMatch), payload);
+                        .version(version).versionType(versionType).setIfSeqNo(ifSeqNo).setIfPrimaryTerm(ifPrimaryTerm), payload);
                 } else {
                     nextMarker = findNextMarker(marker, from, data, length);
                     if (nextMarker == -1) {
@@ -427,16 +427,17 @@ public class BulkRequest extends ActionRequest implements CompositeIndicesReques
                     if ("index".equals(action)) {
                         if (opType == null) {
                             internalAdd(new IndexRequest(index, type, id).routing(routing).version(version).versionType(versionType)
-                                    .setPipeline(pipeline).ifMatch(ifSeqNoMatch, ifPrimaryTermMatch)
+                                    .setPipeline(pipeline).setIfSeqNo(ifSeqNo).setIfPrimaryTerm(ifPrimaryTerm)
                                     .source(sliceTrimmingCarriageReturn(data, from, nextMarker,xContentType), xContentType), payload);
                         } else {
                             internalAdd(new IndexRequest(index, type, id).routing(routing).version(version).versionType(versionType)
-                                    .create("create".equals(opType)).setPipeline(pipeline).ifMatch(ifSeqNoMatch, ifPrimaryTermMatch)
+                                    .create("create".equals(opType)).setPipeline(pipeline)
+                                    .setIfSeqNo(ifSeqNo).setIfPrimaryTerm(ifPrimaryTerm)
                                     .source(sliceTrimmingCarriageReturn(data, from, nextMarker, xContentType), xContentType), payload);
                         }
                     } else if ("create".equals(action)) {
                         internalAdd(new IndexRequest(index, type, id).routing(routing).version(version).versionType(versionType)
-                                .create(true).setPipeline(pipeline).ifMatch(ifSeqNoMatch, ifPrimaryTermMatch)
+                                .create(true).setPipeline(pipeline).setIfSeqNo(ifSeqNo).setIfPrimaryTerm(ifPrimaryTerm)
                                 .source(sliceTrimmingCarriageReturn(data, from, nextMarker, xContentType), xContentType), payload);
                     } else if ("update".equals(action)) {
                         UpdateRequest updateRequest = new UpdateRequest(index, type, id).routing(routing).retryOnConflict(retryOnConflict)

server/src/main/java/org/elasticsearch/action/bulk/TransportShardBulkAction.java

@@ -462,7 +462,7 @@ public class TransportShardBulkAction extends TransportWriteAction<BulkShardRequ
         executeOnPrimaryWhileHandlingMappingUpdates(context,
             () ->
                 primary.applyIndexOperationOnPrimary(request.version(), request.versionType(), sourceToParse,
-                    request.ifSeqNoMatch(), request.ifPrimaryTermMatch(), request.getAutoGeneratedTimestamp(), request.isRetry()),
+                    request.ifSeqNo(), request.ifPrimaryTerm(), request.getAutoGeneratedTimestamp(), request.isRetry()),
             e -> primary.getFailedIndexResult(e, request.version()),
             context::markOperationAsExecuted,
             mapping -> mappingUpdater.updateMappings(mapping, primary.shardId(), request.type()));
@@ -474,7 +474,7 @@ public class TransportShardBulkAction extends TransportWriteAction<BulkShardRequ
         final IndexShard primary = context.getPrimary();
         executeOnPrimaryWhileHandlingMappingUpdates(context,
             () -> primary.applyDeleteOperationOnPrimary(request.version(), request.type(), request.id(), request.versionType(),
-                request.ifSeqNoMatch(), request.ifPrimaryTermMatch()),
+                request.ifSeqNo(), request.ifPrimaryTerm()),
             e -> primary.getFailedDeleteResult(e, request.version()),
             context::markOperationAsExecuted,
             mapping -> mappingUpdater.updateMappings(mapping, primary.shardId(), request.type()));

server/src/main/java/org/elasticsearch/action/delete/DeleteRequest.java

@@ -58,8 +58,8 @@ public class DeleteRequest extends ReplicatedWriteRequest<DeleteRequest>
     private String routing;
     private long version = Versions.MATCH_ANY;
     private VersionType versionType = VersionType.INTERNAL;
-    private long ifSeqNoMatch = SequenceNumbers.UNASSIGNED_SEQ_NO;
+    private long ifSeqNo = SequenceNumbers.UNASSIGNED_SEQ_NO;
-    private long ifPrimaryTermMatch = 0;
+    private long ifPrimaryTerm = 0;
 
     public DeleteRequest() {
     }
@@ -116,11 +116,20 @@ public class DeleteRequest extends ReplicatedWriteRequest<DeleteRequest>
             validationException = addValidationError("version type [force] may no longer be used", validationException);
         }
 
-        if (ifSeqNoMatch != SequenceNumbers.UNASSIGNED_SEQ_NO && (
+        if (ifSeqNo != SequenceNumbers.UNASSIGNED_SEQ_NO && (
             versionType != VersionType.INTERNAL || version != Versions.MATCH_ANY
         )) {
             validationException = addValidationError("compare and write operations can not use versioning", validationException);
         }
+
+        if (ifPrimaryTerm == 0 && ifSeqNo != SequenceNumbers.UNASSIGNED_SEQ_NO) {
+            validationException = addValidationError("ifSeqNo is set, but primary term is [0]", validationException);
+        }
+        if (ifPrimaryTerm != 0 && ifSeqNo == SequenceNumbers.UNASSIGNED_SEQ_NO) {
+            validationException =
+                addValidationError("ifSeqNo is unassigned, but primary term is [" + ifPrimaryTerm + "]", validationException);
+        }
+
         return validationException;
     }
 
@@ -203,29 +212,52 @@ public class DeleteRequest extends ReplicatedWriteRequest<DeleteRequest>
         return this;
     }
 
-    public long ifSeqNoMatch() {
+    /**
-        return ifSeqNoMatch;
+     * If set, only perform this delete request if the document was last modification was assigned this sequence number.
+     * If the document last modification was assigned a different sequence number a
+     * {@link org.elasticsearch.index.engine.VersionConflictEngineException} will be thrown.
+     */
+    public long ifSeqNo() {
+        return ifSeqNo;
     }
 
-    public long ifPrimaryTermMatch() {
+    /**
-        return ifPrimaryTermMatch;
+     * If set, only perform this delete request if the document was last modification was assigned this primary term.
+     *
+     * If the document last modification was assigned a different term a
+     * {@link org.elasticsearch.index.engine.VersionConflictEngineException} will be thrown.
+     */
+    public long ifPrimaryTerm() {
+        return ifPrimaryTerm;
     }
 
-    public DeleteRequest setIfMatch(long seqNo, long term) {
+    /**
-        if (term == 0 && seqNo != SequenceNumbers.UNASSIGNED_SEQ_NO) {
+     * only perform this delete request if the document was last modification was assigned the given
-            throw new IllegalArgumentException("seqNo is set, but primary term is [0]");
+     * sequence number. Must be used in combination with {@link #setIfPrimaryTerm(long)}
-        }
+     *
-        if (term != 0 && seqNo == SequenceNumbers.UNASSIGNED_SEQ_NO) {
+     * If the document last modification was assigned a different sequence number a
-            throw new IllegalArgumentException("seqNo is unassigned, but primary term is [" + term + "]");
+     * {@link org.elasticsearch.index.engine.VersionConflictEngineException} will be thrown.
-        }
+     */
+    public DeleteRequest setIfSeqNo(long seqNo) {
         if (seqNo < 0 && seqNo != SequenceNumbers.UNASSIGNED_SEQ_NO) {
             throw new IllegalArgumentException("sequence numbers must be non negative. got [" +  seqNo + "].");
         }
+        ifSeqNo = seqNo;
+        return this;
+    }
+
+    /**
+     * only perform this delete request if the document was last modification was assigned the given
+     * primary term. Must be used in combination with {@link #setIfSeqNo(long)}
+     *
+     * If the document last modification was assigned a different primary term a
+     * {@link org.elasticsearch.index.engine.VersionConflictEngineException} will be thrown.
+     */
+    public DeleteRequest setIfPrimaryTerm(long term) {
         if (term < 0) {
             throw new IllegalArgumentException("primary term must be non negative. got [" + term + "]");
         }
-        ifSeqNoMatch = seqNo;
+        ifPrimaryTerm = term;
-        ifPrimaryTermMatch = term;
         return this;
     }
 
@@ -251,11 +283,11 @@ public class DeleteRequest extends ReplicatedWriteRequest<DeleteRequest>
         version = in.readLong();
         versionType = VersionType.fromValue(in.readByte());
         if (in.getVersion().onOrAfter(Version.V_7_0_0)) {
-            ifSeqNoMatch = in.readZLong();
+            ifSeqNo = in.readZLong();
-            ifPrimaryTermMatch = in.readVLong();
+            ifPrimaryTerm = in.readVLong();
         } else {
-            ifSeqNoMatch = SequenceNumbers.UNASSIGNED_SEQ_NO;
+            ifSeqNo = SequenceNumbers.UNASSIGNED_SEQ_NO;
-            ifPrimaryTermMatch = 0;
+            ifPrimaryTerm = 0;
         }
     }
 
@@ -271,10 +303,10 @@ public class DeleteRequest extends ReplicatedWriteRequest<DeleteRequest>
         out.writeLong(version);
         out.writeByte(versionType.getValue());
         if (out.getVersion().onOrAfter(Version.V_7_0_0)) {
-            out.writeZLong(ifSeqNoMatch);
+            out.writeZLong(ifSeqNo);
-            out.writeVLong(ifPrimaryTermMatch);
+            out.writeVLong(ifPrimaryTerm);
-        } else if (ifSeqNoMatch != SequenceNumbers.UNASSIGNED_SEQ_NO || ifPrimaryTermMatch != 0) {
+        } else if (ifSeqNo != SequenceNumbers.UNASSIGNED_SEQ_NO || ifPrimaryTerm != 0) {
-            assert false : "setIfMatch [" + ifSeqNoMatch + "], currentDocTem [" + ifPrimaryTermMatch + "]";
+            assert false : "setIfMatch [" + ifSeqNo + "], currentDocTem [" + ifPrimaryTerm + "]";
             throw new IllegalStateException(
                 "sequence number based compare and write is not supported until all nodes are on version 7.0 or higher. " +
                     "Stream version [" + out.getVersion() + "]");

server/src/main/java/org/elasticsearch/action/delete/DeleteRequestBuilder.java

@@ -82,11 +82,26 @@ public class DeleteRequestBuilder extends ReplicationRequestBuilder<DeleteReques
     }
 
     /**
-     * only performs this delete request if the document was last modification was assigned the given
+     * only perform this delete request if the document was last modification was assigned the given
-     * sequence number and primary term
+     * sequence number. Must be used in combination with {@link #setIfPrimaryTerm(long)}
+     *
+     * If the document last modification was assigned a different sequence number a
+     * {@link org.elasticsearch.index.engine.VersionConflictEngineException} will be thrown.
      */
-    public DeleteRequestBuilder setIfMatch(long seqNo, long term) {
+    public DeleteRequestBuilder setIfSeqNo(long seqNo) {
-        request.setIfMatch(seqNo, term);
+        request.setIfSeqNo(seqNo);
+        return this;
+    }
+
+    /**
+     * only perform this delete request if the document was last modification was assigned the given
+     * primary term. Must be used in combination with {@link #setIfSeqNo(long)}
+     *
+     * If the document last modification was assigned a different term a
+     * {@link org.elasticsearch.index.engine.VersionConflictEngineException} will be thrown.
+     */
+    public DeleteRequestBuilder setIfPrimaryTerm(long term) {
+        request.setIfPrimaryTerm(term);
         return this;
     }
 

server/src/main/java/org/elasticsearch/action/index/IndexRequest.java

@@ -105,8 +105,8 @@ public class IndexRequest extends ReplicatedWriteRequest<IndexRequest> implement
     private long autoGeneratedTimestamp = UNSET_AUTO_GENERATED_TIMESTAMP;
 
     private boolean isRetry = false;
-    private long ifSeqNoMatch = SequenceNumbers.UNASSIGNED_SEQ_NO;
+    private long ifSeqNo = SequenceNumbers.UNASSIGNED_SEQ_NO;
-    private long ifPrimaryTermMatch = 0;
+    private long ifPrimaryTerm = 0;
 
 
     public IndexRequest() {
@@ -168,7 +168,7 @@ public class IndexRequest extends ReplicatedWriteRequest<IndexRequest> implement
                 return validationException;
             }
 
-            if (ifSeqNoMatch != SequenceNumbers.UNASSIGNED_SEQ_NO || ifPrimaryTermMatch != 0) {
+            if (ifSeqNo != SequenceNumbers.UNASSIGNED_SEQ_NO || ifPrimaryTerm != 0) {
                 validationException = addValidationError("create operations do not support compare and set. use index instead",
                     validationException);
                 return validationException;
@@ -201,11 +201,18 @@ public class IndexRequest extends ReplicatedWriteRequest<IndexRequest> implement
             validationException = addValidationError("pipeline cannot be an empty string", validationException);
         }
 
-        if (ifSeqNoMatch != SequenceNumbers.UNASSIGNED_SEQ_NO && (
+        if (ifSeqNo != SequenceNumbers.UNASSIGNED_SEQ_NO && (
             versionType != VersionType.INTERNAL || version != Versions.MATCH_ANY
             )) {
             validationException = addValidationError("compare and write operations can not use versioning", validationException);
         }
+        if (ifPrimaryTerm == 0 && ifSeqNo != SequenceNumbers.UNASSIGNED_SEQ_NO) {
+            validationException = addValidationError("ifSeqNo is set, but primary term is [0]", validationException);
+        }
+        if (ifPrimaryTerm != 0 && ifSeqNo == SequenceNumbers.UNASSIGNED_SEQ_NO) {
+            validationException =
+                addValidationError("ifSeqNo is unassigned, but primary term is [" + ifPrimaryTerm + "]", validationException);
+        }
 
         return validationException;
     }
@@ -486,31 +493,53 @@ public class IndexRequest extends ReplicatedWriteRequest<IndexRequest> implement
         return this;
     }
 
-    public IndexRequest ifMatch(long seqNo, long term) {
+    /**
-        if (term == 0 && seqNo != SequenceNumbers.UNASSIGNED_SEQ_NO) {
+     * only perform this indexing request if the document was last modification was assigned the given
-            throw new IllegalArgumentException("seqNo is set, but primary term is [0]");
+     * sequence number. Must be used in combination with {@link #setIfPrimaryTerm(long)}
-        }
+     *
-
+     * If the document last modification was assigned a different sequence number a
-        if (term != 0 && seqNo == SequenceNumbers.UNASSIGNED_SEQ_NO) {
+     * {@link org.elasticsearch.index.engine.VersionConflictEngineException} will be thrown.
-            throw new IllegalArgumentException("seqNo is unassigned, but primary term is [" + term + "]");
+     */
-        }
+    public IndexRequest setIfSeqNo(long seqNo) {
         if (seqNo < 0 && seqNo != SequenceNumbers.UNASSIGNED_SEQ_NO) {
             throw new IllegalArgumentException("sequence numbers must be non negative. got [" +  seqNo + "].");
         }
-        if (term < 0) {
+        ifSeqNo = seqNo;
-            throw new IllegalArgumentException("primary term must be non negative. got [" + term + "]");
-        }
-        ifSeqNoMatch = seqNo;
-        ifPrimaryTermMatch = term;
         return this;
     }
 
-    public long ifSeqNoMatch() {
+    /**
-        return ifSeqNoMatch;
+     * only performs this indexing request if the document was last modification was assigned the given
+     * primary term. Must be used in combination with {@link #setIfSeqNo(long)}
+     *
+     * If the document last modification was assigned a different term a
+     * {@link org.elasticsearch.index.engine.VersionConflictEngineException} will be thrown.
+     */
+    public IndexRequest setIfPrimaryTerm(long term) {
+        if (term < 0) {
+            throw new IllegalArgumentException("primary term must be non negative. got [" + term + "]");
+        }
+        ifPrimaryTerm = term;
+        return this;
     }
 
-    public long ifPrimaryTermMatch() {
+    /**
-        return ifPrimaryTermMatch;
+     * If set, only perform this indexing request if the document was last modification was assigned this sequence number.
+     * If the document last modification was assigned a different sequence number a
+     * {@link org.elasticsearch.index.engine.VersionConflictEngineException} will be thrown.
+     */
+    public long ifSeqNo() {
+        return ifSeqNo;
+    }
+
+    /**
+     * If set, only perform this indexing request if the document was last modification was assigned this primary term.
+     *
+     * If the document last modification was assigned a different term a
+     * {@link org.elasticsearch.index.engine.VersionConflictEngineException} will be thrown.
+     */
+    public long ifPrimaryTerm() {
+        return ifPrimaryTerm;
     }
 
     @Override
@@ -534,8 +563,8 @@ public class IndexRequest extends ReplicatedWriteRequest<IndexRequest> implement
         // generate id if not already provided
         if (id == null) {
             assert autoGeneratedTimestamp == -1 : "timestamp has already been generated!";
-            assert ifSeqNoMatch == SequenceNumbers.UNASSIGNED_SEQ_NO;
+            assert ifSeqNo == SequenceNumbers.UNASSIGNED_SEQ_NO;
-            assert ifPrimaryTermMatch == 0;
+            assert ifPrimaryTerm == 0;
             autoGeneratedTimestamp = Math.max(0, System.currentTimeMillis()); // extra paranoia
             String uid;
             if (indexCreatedVersion.onOrAfter(Version.V_6_0_0_beta1)) {
@@ -578,11 +607,11 @@ public class IndexRequest extends ReplicatedWriteRequest<IndexRequest> implement
             contentType = null;
         }
         if (in.getVersion().onOrAfter(Version.V_7_0_0)) {
-            ifSeqNoMatch = in.readZLong();
+            ifSeqNo = in.readZLong();
-            ifPrimaryTermMatch = in.readVLong();
+            ifPrimaryTerm = in.readVLong();
         } else {
-            ifSeqNoMatch = SequenceNumbers.UNASSIGNED_SEQ_NO;
+            ifSeqNo = SequenceNumbers.UNASSIGNED_SEQ_NO;
-            ifPrimaryTermMatch = 0;
+            ifPrimaryTerm = 0;
         }
     }
 
@@ -616,10 +645,10 @@ public class IndexRequest extends ReplicatedWriteRequest<IndexRequest> implement
             out.writeBoolean(false);
         }
         if (out.getVersion().onOrAfter(Version.V_7_0_0)) {
-            out.writeZLong(ifSeqNoMatch);
+            out.writeZLong(ifSeqNo);
-            out.writeVLong(ifPrimaryTermMatch);
+            out.writeVLong(ifPrimaryTerm);
-        } else if (ifSeqNoMatch != SequenceNumbers.UNASSIGNED_SEQ_NO || ifPrimaryTermMatch != 0) {
+        } else if (ifSeqNo != SequenceNumbers.UNASSIGNED_SEQ_NO || ifPrimaryTerm != 0) {
-            assert false : "setIfMatch [" + ifSeqNoMatch + "], currentDocTem [" + ifPrimaryTermMatch + "]";
+            assert false : "setIfMatch [" + ifSeqNo + "], currentDocTem [" + ifPrimaryTerm + "]";
             throw new IllegalStateException(
                 "sequence number based compare and write is not supported until all nodes are on version 7.0 or higher. " +
                     "Stream version [" + out.getVersion() + "]");

server/src/main/java/org/elasticsearch/action/index/IndexRequestBuilder.java

@@ -200,11 +200,26 @@ public class IndexRequestBuilder extends ReplicationRequestBuilder<IndexRequest,
     }
 
     /**
-     * only performs this indexing request if the document was last modification was assigned the given
+     * only perform this indexing request if the document was last modification was assigned the given
-     * sequence number and primary term
+     * sequence number. Must be used in combination with {@link #setIfPrimaryTerm(long)}
+     *
+     * If the document last modification was assigned a different sequence number a
+     * {@link org.elasticsearch.index.engine.VersionConflictEngineException} will be thrown.
      */
-    public IndexRequestBuilder setIfMatch(long seqNo, long term) {
+    public IndexRequestBuilder setIfSeqNo(long seqNo) {
-        request.ifMatch(seqNo, term);
+        request.setIfSeqNo(seqNo);
+        return this;
+    }
+
+    /**
+     * only perform this indexing request if the document was last modification was assigned the given
+     * primary term. Must be used in combination with {@link #setIfSeqNo(long)}
+     *
+     * If the document last modification was assigned a different term a
+     * {@link org.elasticsearch.index.engine.VersionConflictEngineException} will be thrown.
+     */
+    public IndexRequestBuilder setIfPrimaryTerm(long term) {
+        request.setIfPrimaryTerm(term);
         return this;
     }
 

server/src/main/java/org/elasticsearch/index/engine/Engine.java

@@ -1345,23 +1345,23 @@ public abstract class Engine implements Closeable {
         private final ParsedDocument doc;
         private final long autoGeneratedIdTimestamp;
         private final boolean isRetry;
-        private final long ifSeqNoMatch;
+        private final long ifSeqNo;
-        private final long ifPrimaryTermMatch;
+        private final long ifPrimaryTerm;
 
         public Index(Term uid, ParsedDocument doc, long seqNo, long primaryTerm, long version, VersionType versionType, Origin origin,
-                     long startTime, long autoGeneratedIdTimestamp, boolean isRetry, long ifSeqNoMatch, long ifPrimaryTermMatch) {
+                     long startTime, long autoGeneratedIdTimestamp, boolean isRetry, long ifSeqNo, long ifPrimaryTerm) {
             super(uid, seqNo, primaryTerm, version, versionType, origin, startTime);
             assert (origin == Origin.PRIMARY) == (versionType != null) : "invalid version_type=" + versionType + " for origin=" + origin;
-            assert ifPrimaryTermMatch >= 0 : "ifPrimaryTermMatch [" + ifPrimaryTermMatch + "] must be non negative";
+            assert ifPrimaryTerm >= 0 : "ifPrimaryTerm [" + ifPrimaryTerm + "] must be non negative";
-            assert ifSeqNoMatch == SequenceNumbers.UNASSIGNED_SEQ_NO || ifSeqNoMatch >=0 :
+            assert ifSeqNo == SequenceNumbers.UNASSIGNED_SEQ_NO || ifSeqNo >=0 :
-                "ifSeqNoMatch [" + ifSeqNoMatch + "] must be non negative or unset";
+                "ifSeqNo [" + ifSeqNo + "] must be non negative or unset";
-            assert (origin == Origin.PRIMARY) || (ifSeqNoMatch == SequenceNumbers.UNASSIGNED_SEQ_NO && ifPrimaryTermMatch == 0) :
+            assert (origin == Origin.PRIMARY) || (ifSeqNo == SequenceNumbers.UNASSIGNED_SEQ_NO && ifPrimaryTerm == 0) :
                 "cas operations are only allowed if origin is primary. get [" + origin + "]";
             this.doc = doc;
             this.isRetry = isRetry;
             this.autoGeneratedIdTimestamp = autoGeneratedIdTimestamp;
-            this.ifSeqNoMatch = ifSeqNoMatch;
+            this.ifSeqNo = ifSeqNo;
-            this.ifPrimaryTermMatch = ifPrimaryTermMatch;
+            this.ifPrimaryTerm = ifPrimaryTerm;
         }
 
         public Index(Term uid, long primaryTerm, ParsedDocument doc) {
@@ -1426,12 +1426,12 @@ public abstract class Engine implements Closeable {
             return isRetry;
         }
 
-        public long getIfSeqNoMatch() {
+        public long getIfSeqNo() {
-            return ifSeqNoMatch;
+            return ifSeqNo;
         }
 
-        public long getIfPrimaryTermMatch() {
+        public long getIfPrimaryTerm() {
-            return ifPrimaryTermMatch;
+            return ifPrimaryTerm;
         }
     }
 
@@ -1439,22 +1439,22 @@ public abstract class Engine implements Closeable {
 
         private final String type;
         private final String id;
-        private final long ifSeqNoMatch;
+        private final long ifSeqNo;
-        private final long ifPrimaryTermMatch;
+        private final long ifPrimaryTerm;
 
         public Delete(String type, String id, Term uid, long seqNo, long primaryTerm, long version, VersionType versionType,
-                      Origin origin, long startTime, long ifSeqNoMatch, long ifPrimaryTermMatch) {
+                      Origin origin, long startTime, long ifSeqNo, long ifPrimaryTerm) {
             super(uid, seqNo, primaryTerm, version, versionType, origin, startTime);
             assert (origin == Origin.PRIMARY) == (versionType != null) : "invalid version_type=" + versionType + " for origin=" + origin;
-            assert ifPrimaryTermMatch >= 0 : "ifPrimaryTermMatch [" + ifPrimaryTermMatch + "] must be non negative";
+            assert ifPrimaryTerm >= 0 : "ifPrimaryTerm [" + ifPrimaryTerm + "] must be non negative";
-            assert ifSeqNoMatch == SequenceNumbers.UNASSIGNED_SEQ_NO || ifSeqNoMatch >=0 :
+            assert ifSeqNo == SequenceNumbers.UNASSIGNED_SEQ_NO || ifSeqNo >=0 :
-                "ifSeqNoMatch [" + ifSeqNoMatch + "] must be non negative or unset";
+                "ifSeqNo [" + ifSeqNo + "] must be non negative or unset";
-            assert (origin == Origin.PRIMARY) || (ifSeqNoMatch == SequenceNumbers.UNASSIGNED_SEQ_NO && ifPrimaryTermMatch == 0) :
+            assert (origin == Origin.PRIMARY) || (ifSeqNo == SequenceNumbers.UNASSIGNED_SEQ_NO && ifPrimaryTerm == 0) :
                 "cas operations are only allowed if origin is primary. get [" + origin + "]";
             this.type = Objects.requireNonNull(type);
             this.id = Objects.requireNonNull(id);
-            this.ifSeqNoMatch = ifSeqNoMatch;
+            this.ifSeqNo = ifSeqNo;
-            this.ifPrimaryTermMatch = ifPrimaryTermMatch;
+            this.ifPrimaryTerm = ifPrimaryTerm;
         }
 
         public Delete(String type, String id, Term uid, long primaryTerm) {
@@ -1487,12 +1487,12 @@ public abstract class Engine implements Closeable {
             return (uid().field().length() + uid().text().length()) * 2 + 20;
         }
 
-        public long getIfSeqNoMatch() {
+        public long getIfSeqNo() {
-            return ifSeqNoMatch;
+            return ifSeqNo;
         }
 
-        public long getIfPrimaryTermMatch() {
+        public long getIfPrimaryTerm() {
-            return ifPrimaryTermMatch;
+            return ifPrimaryTerm;
         }
     }
 

server/src/main/java/org/elasticsearch/index/engine/InternalEngine.java

@@ -965,7 +965,7 @@ public class InternalEngine extends Engine {
             versionMap.enforceSafeAccess();
             // resolves incoming version
             final VersionValue versionValue =
-                resolveDocVersion(index, index.getIfSeqNoMatch() != SequenceNumbers.UNASSIGNED_SEQ_NO);
+                resolveDocVersion(index, index.getIfSeqNo() != SequenceNumbers.UNASSIGNED_SEQ_NO);
             final long currentVersion;
             final boolean currentNotFoundOrDeleted;
             if (versionValue == null) {
@@ -975,15 +975,15 @@ public class InternalEngine extends Engine {
                 currentVersion = versionValue.version;
                 currentNotFoundOrDeleted = versionValue.isDelete();
             }
-            if (index.getIfSeqNoMatch() != SequenceNumbers.UNASSIGNED_SEQ_NO && versionValue == null) {
+            if (index.getIfSeqNo() != SequenceNumbers.UNASSIGNED_SEQ_NO && versionValue == null) {
                 final VersionConflictEngineException e = new VersionConflictEngineException(shardId, index.type(), index.id(),
-                    index.getIfSeqNoMatch(), index.getIfPrimaryTermMatch(), SequenceNumbers.UNASSIGNED_SEQ_NO, 0);
+                    index.getIfSeqNo(), index.getIfPrimaryTerm(), SequenceNumbers.UNASSIGNED_SEQ_NO, 0);
                 plan = IndexingStrategy.skipDueToVersionConflict(e, currentNotFoundOrDeleted, currentVersion, getPrimaryTerm());
-            } else if (index.getIfSeqNoMatch() != SequenceNumbers.UNASSIGNED_SEQ_NO && (
+            } else if (index.getIfSeqNo() != SequenceNumbers.UNASSIGNED_SEQ_NO && (
-                versionValue.seqNo != index.getIfSeqNoMatch() || versionValue.term != index.getIfPrimaryTermMatch()
+                versionValue.seqNo != index.getIfSeqNo() || versionValue.term != index.getIfPrimaryTerm()
             )) {
                 final VersionConflictEngineException e = new VersionConflictEngineException(shardId, index.type(), index.id(),
-                    index.getIfSeqNoMatch(), index.getIfPrimaryTermMatch(), versionValue.seqNo, versionValue.term);
+                    index.getIfSeqNo(), index.getIfPrimaryTerm(), versionValue.seqNo, versionValue.term);
                 plan = IndexingStrategy.skipDueToVersionConflict(e, currentNotFoundOrDeleted, currentVersion, getPrimaryTerm());
             } else if (index.versionType().isVersionConflictForWrites(
                 currentVersion, index.version(), currentNotFoundOrDeleted)) {
@@ -1302,7 +1302,7 @@ public class InternalEngine extends Engine {
         assert delete.origin() == Operation.Origin.PRIMARY : "planing as primary but got " + delete.origin();
         assert getMaxSeqNoOfUpdatesOrDeletes() != SequenceNumbers.UNASSIGNED_SEQ_NO : "max_seq_no_of_updates is not initialized";
         // resolve operation from external to internal
-        final VersionValue versionValue = resolveDocVersion(delete, delete.getIfSeqNoMatch() != SequenceNumbers.UNASSIGNED_SEQ_NO);
+        final VersionValue versionValue = resolveDocVersion(delete, delete.getIfSeqNo() != SequenceNumbers.UNASSIGNED_SEQ_NO);
         assert incrementVersionLookup();
         final long currentVersion;
         final boolean currentlyDeleted;
@@ -1314,15 +1314,15 @@ public class InternalEngine extends Engine {
             currentlyDeleted = versionValue.isDelete();
         }
         final DeletionStrategy plan;
-        if (delete.getIfSeqNoMatch() != SequenceNumbers.UNASSIGNED_SEQ_NO && versionValue == null) {
+        if (delete.getIfSeqNo() != SequenceNumbers.UNASSIGNED_SEQ_NO && versionValue == null) {
             final VersionConflictEngineException e = new VersionConflictEngineException(shardId, delete.type(), delete.id(),
-                delete.getIfSeqNoMatch(), delete.getIfPrimaryTermMatch(), SequenceNumbers.UNASSIGNED_SEQ_NO, 0);
+                delete.getIfSeqNo(), delete.getIfPrimaryTerm(), SequenceNumbers.UNASSIGNED_SEQ_NO, 0);
             plan = DeletionStrategy.skipDueToVersionConflict(e, currentVersion, getPrimaryTerm(), currentlyDeleted);
-        } else if (delete.getIfSeqNoMatch() != SequenceNumbers.UNASSIGNED_SEQ_NO && (
+        } else if (delete.getIfSeqNo() != SequenceNumbers.UNASSIGNED_SEQ_NO && (
-            versionValue.seqNo != delete.getIfSeqNoMatch() || versionValue.term != delete.getIfPrimaryTermMatch()
+            versionValue.seqNo != delete.getIfSeqNo() || versionValue.term != delete.getIfPrimaryTerm()
         )) {
             final VersionConflictEngineException e = new VersionConflictEngineException(shardId, delete.type(), delete.id(),
-                delete.getIfSeqNoMatch(), delete.getIfPrimaryTermMatch(), versionValue.seqNo, versionValue.term);
+                delete.getIfSeqNo(), delete.getIfPrimaryTerm(), versionValue.seqNo, versionValue.term);
             plan = DeletionStrategy.skipDueToVersionConflict(e, currentVersion, getPrimaryTerm(), currentlyDeleted);
         } else if (delete.versionType().isVersionConflictForWrites(currentVersion, delete.version(), currentlyDeleted)) {
             final VersionConflictEngineException e = new VersionConflictEngineException(shardId, delete, currentVersion, currentlyDeleted);

server/src/main/java/org/elasticsearch/index/shard/IndexShard.java

@@ -686,12 +686,12 @@ public class IndexShard extends AbstractIndexShardComponent implements IndicesCl
     }
 
     public Engine.IndexResult applyIndexOperationOnPrimary(long version, VersionType versionType, SourceToParse sourceToParse,
-                                                           long ifSeqNoMatch, long ifPrimaryTermMatch, long autoGeneratedTimestamp,
+                                                           long ifSeqNo, long ifPrimaryTerm, long autoGeneratedTimestamp,
                                                            boolean isRetry)
         throws IOException {
         assert versionType.validateVersionForWrites(version);
-        return applyIndexOperation(getEngine(), UNASSIGNED_SEQ_NO, operationPrimaryTerm, version, versionType, ifSeqNoMatch,
+        return applyIndexOperation(getEngine(), UNASSIGNED_SEQ_NO, operationPrimaryTerm, version, versionType, ifSeqNo,
-            ifPrimaryTermMatch, autoGeneratedTimestamp, isRetry, Engine.Operation.Origin.PRIMARY, sourceToParse);
+            ifPrimaryTerm, autoGeneratedTimestamp, isRetry, Engine.Operation.Origin.PRIMARY, sourceToParse);
     }
 
     public Engine.IndexResult applyIndexOperationOnReplica(long seqNo, long version, long autoGeneratedTimeStamp,
@@ -702,7 +702,7 @@ public class IndexShard extends AbstractIndexShardComponent implements IndicesCl
     }
 
     private Engine.IndexResult applyIndexOperation(Engine engine, long seqNo, long opPrimaryTerm, long version,
-                                                   @Nullable VersionType versionType, long ifSeqNoMatch, long ifPrimaryTermMatch,
+                                                   @Nullable VersionType versionType, long ifSeqNo, long ifPrimaryTerm,
                                                    long autoGeneratedTimeStamp, boolean isRetry, Engine.Operation.Origin origin,
                                                    SourceToParse sourceToParse) throws IOException {
         assert opPrimaryTerm <= this.operationPrimaryTerm: "op term [ " + opPrimaryTerm + " ] > shard term [" + this.operationPrimaryTerm
@@ -712,7 +712,7 @@ public class IndexShard extends AbstractIndexShardComponent implements IndicesCl
         try {
             operation = prepareIndex(docMapper(sourceToParse.type()), indexSettings.getIndexVersionCreated(), sourceToParse, seqNo,
                 opPrimaryTerm, version, versionType, origin, autoGeneratedTimeStamp, isRetry,
-                ifSeqNoMatch, ifPrimaryTermMatch);
+                ifSeqNo, ifPrimaryTerm);
             Mapping update = operation.parsedDoc().dynamicMappingsUpdate();
             if (update != null) {
                 return new Engine.IndexResult(update);
@@ -732,7 +732,7 @@ public class IndexShard extends AbstractIndexShardComponent implements IndicesCl
     public static Engine.Index prepareIndex(DocumentMapperForType docMapper, Version indexCreatedVersion, SourceToParse source, long seqNo,
                                             long primaryTerm, long version, VersionType versionType, Engine.Operation.Origin origin,
                                             long autoGeneratedIdTimestamp, boolean isRetry,
-                                            long ifSeqNoMatch, long ifPrimaryTermMatch) {
+                                            long ifSeqNo, long ifPrimaryTerm) {
         long startTime = System.nanoTime();
         ParsedDocument doc = docMapper.getDocumentMapper().parse(source);
         if (docMapper.getMapping() != null) {
@@ -740,7 +740,7 @@ public class IndexShard extends AbstractIndexShardComponent implements IndicesCl
         }
         Term uid = new Term(IdFieldMapper.NAME, Uid.encodeId(doc.id()));
         return new Engine.Index(uid, doc, seqNo, primaryTerm, version, versionType, origin, startTime, autoGeneratedIdTimestamp, isRetry,
-            ifSeqNoMatch, ifPrimaryTermMatch);
+            ifSeqNo, ifPrimaryTerm);
     }
 
     private Engine.IndexResult index(Engine engine, Engine.Index index) throws IOException {
@@ -792,11 +792,11 @@ public class IndexShard extends AbstractIndexShardComponent implements IndicesCl
     }
 
     public Engine.DeleteResult applyDeleteOperationOnPrimary(long version, String type, String id, VersionType versionType,
-                                                             long ifSeqNoMatch, long ifPrimaryTermMatch)
+                                                             long ifSeqNo, long ifPrimaryTerm)
         throws IOException {
         assert versionType.validateVersionForWrites(version);
         return applyDeleteOperation(getEngine(), UNASSIGNED_SEQ_NO, operationPrimaryTerm, version, type, id, versionType,
-            ifSeqNoMatch, ifPrimaryTermMatch, Engine.Operation.Origin.PRIMARY);
+            ifSeqNo, ifPrimaryTerm, Engine.Operation.Origin.PRIMARY);
     }
 
     public Engine.DeleteResult applyDeleteOperationOnReplica(long seqNo, long version, String type, String id) throws IOException {
@@ -805,7 +805,7 @@ public class IndexShard extends AbstractIndexShardComponent implements IndicesCl
     }
 
     private Engine.DeleteResult applyDeleteOperation(Engine engine, long seqNo, long opPrimaryTerm, long version, String type, String id,
-                                                     @Nullable VersionType versionType, long ifSeqNoMatch, long ifPrimaryTermMatch,
+                                                     @Nullable VersionType versionType, long ifSeqNo, long ifPrimaryTerm,
                                                      Engine.Operation.Origin origin) throws IOException {
         assert opPrimaryTerm <= this.operationPrimaryTerm : "op term [ " + opPrimaryTerm + " ] > shard term [" + this.operationPrimaryTerm
             + "]";
@@ -835,16 +835,16 @@ public class IndexShard extends AbstractIndexShardComponent implements IndicesCl
         }
         final Term uid = new Term(IdFieldMapper.NAME, Uid.encodeId(id));
         final Engine.Delete delete = prepareDelete(type, id, uid, seqNo, opPrimaryTerm, version,
-            versionType, origin, ifSeqNoMatch, ifPrimaryTermMatch);
+            versionType, origin, ifSeqNo, ifPrimaryTerm);
         return delete(engine, delete);
     }
 
     private Engine.Delete prepareDelete(String type, String id, Term uid, long seqNo, long primaryTerm, long version,
                                                VersionType versionType, Engine.Operation.Origin origin,
-                                               long ifSeqNoMatch, long ifPrimaryTermMatch) {
+                                               long ifSeqNo, long ifPrimaryTerm) {
         long startTime = System.nanoTime();
         return new Engine.Delete(resolveType(type), id, uid, seqNo, primaryTerm, version, versionType, origin, startTime,
-            ifSeqNoMatch, ifPrimaryTermMatch);
+            ifSeqNo, ifPrimaryTerm);
     }
 
     private Engine.DeleteResult delete(Engine engine, Engine.Delete delete) throws IOException {

server/src/main/java/org/elasticsearch/rest/action/document/RestDeleteAction.java

@@ -66,10 +66,8 @@ public class RestDeleteAction extends BaseRestHandler {
         deleteRequest.setRefreshPolicy(request.param("refresh"));
         deleteRequest.version(RestActions.parseVersion(request));
         deleteRequest.versionType(VersionType.fromString(request.param("version_type"), deleteRequest.versionType()));
-        deleteRequest.setIfMatch(
+        deleteRequest.setIfSeqNo(request.paramAsLong("if_seq_no", deleteRequest.ifSeqNo()));
-            request.paramAsLong("if_seq_no_match", deleteRequest.ifSeqNoMatch()),
+        deleteRequest.setIfPrimaryTerm(request.paramAsLong("if_primary_term", deleteRequest.ifPrimaryTerm()));
-            request.paramAsLong("if_primary_term_match", deleteRequest.ifPrimaryTermMatch())
-        );
 
         String waitForActiveShards = request.param("wait_for_active_shards");
         if (waitForActiveShards != null) {

server/src/main/java/org/elasticsearch/rest/action/document/RestIndexAction.java

@@ -93,10 +93,8 @@ public class RestIndexAction extends BaseRestHandler {
         indexRequest.setRefreshPolicy(request.param("refresh"));
         indexRequest.version(RestActions.parseVersion(request));
         indexRequest.versionType(VersionType.fromString(request.param("version_type"), indexRequest.versionType()));
-        indexRequest.ifMatch(
+        indexRequest.setIfSeqNo(request.paramAsLong("if_seq_no", indexRequest.ifSeqNo()));
-            request.paramAsLong("if_seq_no_match", indexRequest.ifSeqNoMatch()),
+        indexRequest.setIfPrimaryTerm(request.paramAsLong("if_primary_term", indexRequest.ifPrimaryTerm()));
-            request.paramAsLong("if_primary_term_match", indexRequest.ifPrimaryTermMatch())
-        );
         String sOpType = request.param("op_type");
         String waitForActiveShards = request.param("wait_for_active_shards");
         if (waitForActiveShards != null) {

server/src/test/java/org/elasticsearch/versioning/SimpleVersioningIT.java

@@ -295,21 +295,21 @@ public class SimpleVersioningIT extends ESIntegTestCase {
         assertThat(indexResponse.getPrimaryTerm(), equalTo(1L));
 
         assertThrows(
-            client().prepareIndex("test", "type", "1").setSource("field1", "value1_1").setIfMatch(10, 1).execute(),
+            client().prepareIndex("test", "type", "1").setSource("field1", "value1_1").setIfSeqNo(10).setIfPrimaryTerm(1).execute(),
             VersionConflictEngineException.class);
 
         assertThrows(
-            client().prepareIndex("test", "type", "1").setSource("field1", "value1_1").setIfMatch(10, 2).execute(),
+            client().prepareIndex("test", "type", "1").setSource("field1", "value1_1").setIfSeqNo(10).setIfPrimaryTerm(2).execute(),
             VersionConflictEngineException.class);
 
         assertThrows(
-            client().prepareIndex("test", "type", "1").setSource("field1", "value1_1").setIfMatch(1, 2).execute(),
+            client().prepareIndex("test", "type", "1").setSource("field1", "value1_1").setIfSeqNo(1).setIfPrimaryTerm(2).execute(),
             VersionConflictEngineException.class);
 
 
-        assertThrows(client().prepareDelete("test", "type", "1").setIfMatch(10, 1).execute(), VersionConflictEngineException.class);
+        assertThrows(client().prepareDelete("test", "type", "1").setIfSeqNo(10).setIfPrimaryTerm(1), VersionConflictEngineException.class);
-        assertThrows(client().prepareDelete("test", "type", "1").setIfMatch(10, 2).execute(), VersionConflictEngineException.class);
+        assertThrows(client().prepareDelete("test", "type", "1").setIfSeqNo(10).setIfPrimaryTerm(2), VersionConflictEngineException.class);
-        assertThrows(client().prepareDelete("test", "type", "1").setIfMatch(1, 2).execute(), VersionConflictEngineException.class);
+        assertThrows(client().prepareDelete("test", "type", "1").setIfSeqNo(1).setIfPrimaryTerm(2), VersionConflictEngineException.class);
 
         client().admin().indices().prepareRefresh().execute().actionGet();
         for (int i = 0; i < 10; i++) {
@@ -331,19 +331,19 @@ public class SimpleVersioningIT extends ESIntegTestCase {
             assertThat(searchResponse.getHits().getAt(0).getVersion(), equalTo(Versions.NOT_FOUND));
         }
 
-        DeleteResponse deleteResponse = client().prepareDelete("test", "type", "1").setIfMatch(1, 1).execute().actionGet();
+        DeleteResponse deleteResponse = client().prepareDelete("test", "type", "1").setIfSeqNo(1).setIfPrimaryTerm(1).get();
         assertEquals(DocWriteResponse.Result.DELETED, deleteResponse.getResult());
         assertThat(deleteResponse.getSeqNo(), equalTo(2L));
         assertThat(deleteResponse.getPrimaryTerm(), equalTo(1L));
 
-        assertThrows(client().prepareDelete("test", "type", "1").setIfMatch(1, 1).execute(), VersionConflictEngineException.class);
+        assertThrows(client().prepareDelete("test", "type", "1").setIfSeqNo(1).setIfPrimaryTerm(1), VersionConflictEngineException.class);
-        assertThrows(client().prepareDelete("test", "type", "1").setIfMatch(3, 2).execute(), VersionConflictEngineException.class);
+        assertThrows(client().prepareDelete("test", "type", "1").setIfSeqNo(3).setIfPrimaryTerm(12), VersionConflictEngineException.class);
-        assertThrows(client().prepareDelete("test", "type", "1").setIfMatch(1, 2).execute(), VersionConflictEngineException.class);
+        assertThrows(client().prepareDelete("test", "type", "1").setIfSeqNo(1).setIfPrimaryTerm(2), VersionConflictEngineException.class);
 
 
         // This is intricate - the object was deleted but a delete transaction was with the right version. We add another one
         // and thus the transaction is increased.
-        deleteResponse = client().prepareDelete("test", "type", "1").setIfMatch(2, 1).execute().actionGet();
+        deleteResponse = client().prepareDelete("test", "type", "1").setIfSeqNo(2).setIfPrimaryTerm(1).get();
         assertEquals(DocWriteResponse.Result.NOT_FOUND, deleteResponse.getResult());
         assertThat(deleteResponse.getSeqNo(), equalTo(3L));
         assertThat(deleteResponse.getPrimaryTerm(), equalTo(1L));

x-pack/plugin/ccr/src/test/java/org/elasticsearch/xpack/ccr/index/engine/FollowingEngineTests.java

@@ -318,11 +318,11 @@ public class FollowingEngineTests extends ESTestCase {
             Engine.Index index = (Engine.Index) op;
             result = engine.index(new Engine.Index(index.uid(), index.parsedDoc(), index.seqNo(), primaryTerm, index.version(),
                 versionType, origin, index.startTime(), index.getAutoGeneratedIdTimestamp(), index.isRetry(),
-                index.getIfSeqNoMatch(), index.getIfPrimaryTermMatch()));
+                index.getIfSeqNo(), index.getIfPrimaryTerm()));
         } else if (op instanceof Engine.Delete) {
             Engine.Delete delete = (Engine.Delete) op;
             result = engine.delete(new Engine.Delete(delete.type(), delete.id(), delete.uid(), delete.seqNo(), primaryTerm,
-                delete.version(), versionType, origin, delete.startTime(), delete.getIfSeqNoMatch(), delete.getIfPrimaryTermMatch()));
+                delete.version(), versionType, origin, delete.startTime(), delete.getIfSeqNo(), delete.getIfPrimaryTerm()));
         } else {
             Engine.NoOp noOp = (Engine.NoOp) op;
             result = engine.noOp(new Engine.NoOp(noOp.seqNo(), primaryTerm, origin, noOp.startTime(), noOp.reason()));