305 lines
13 KiB
Plaintext
305 lines
13 KiB
Plaintext
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[[breaking_50_java_api_changes]]
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=== Java API changes
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==== Count api has been removed
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The deprecated count api has been removed from the Java api, use the search api instead and set size to 0.
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The following call
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[source,java]
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-----
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client.prepareCount(indices).setQuery(query).get();
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-----
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can be replaced with
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[source,java]
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-----
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client.prepareSearch(indices).setSource(new SearchSourceBuilder().size(0).query(query)).get();
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-----
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==== Suggest api has been removed
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The suggest api has been removed from the Java api, use the suggest option in search api, it has been optimized
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for suggest-only request.
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The following call
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[source,java]
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-----
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client.prepareSuggest(indices).addSuggestion("foo", SuggestBuilders.completionSuggestion("field").text("s")).get();
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-----
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can be replaced with
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[source,java]
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client.prepareSearch(indices).suggest(new SuggestBuilder().addSuggestion("foo", SuggestBuilders.completionSuggestion("field").text("s"))).get();
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-----
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==== Elasticsearch will no longer detect logging implementations
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Elasticsearch now logs only to log4j 1.2. Previously if log4j wasn't on the
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classpath it made some effort to degrade to slf4j or java.util.logging. Now it
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will fail to work without the log4j 1.2 api. The log4j-over-slf4j bridge ought
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to work when using the java client, as should log4j 2's log4j-1.2-api. The
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Elasticsearch server now only supports log4j as configured by `logging.yml`
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and will fail if log4j isn't present.
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==== Groovy dependencies
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In previous versions of Elasticsearch, the Groovy scripting capabilities
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depended on the `org.codehaus.groovy:groovy-all` artifact. In addition
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to pulling in the Groovy language, this pulls in a very large set of
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functionality, none of which is needed for scripting within
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Elasticsearch. Aside from the inherent difficulties in managing such a
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large set of dependencies, this also increases the surface area for
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security issues. This dependency has been reduced to the core Groovy
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language `org.codehaus.groovy:groovy` artifact.
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==== DocumentAlreadyExistsException removed
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`DocumentAlreadyExistsException` is removed and a `VersionConflictException` is thrown instead (with a better
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error description). This will influence code that use the `IndexRequest.opType()` or `IndexRequest.create()`
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to index a document only if it doesn't already exist.
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==== Changes to Query Builders
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===== BoostingQueryBuilder
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Removed setters for mandatory positive/negative query. Both arguments now have
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to be supplied at construction time already and have to be non-null.
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===== SpanContainingQueryBuilder
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Removed setters for mandatory big/little inner span queries. Both arguments now have
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to be supplied at construction time already and have to be non-null. Updated
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static factory methods in QueryBuilders accordingly.
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===== SpanOrQueryBuilder
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Making sure that query contains at least one clause by making initial clause mandatory
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in constructor.
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===== SpanNearQueryBuilder
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Removed setter for mandatory slop parameter, needs to be set in constructor now. Also
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making sure that query contains at least one clause by making initial clause mandatory
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in constructor. Updated the static factory methods in QueryBuilders accordingly.
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===== SpanNotQueryBuilder
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Removed setter for mandatory include/exclude span query clause, needs to be set in constructor now.
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Updated the static factory methods in QueryBuilders and tests accordingly.
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===== SpanWithinQueryBuilder
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Removed setters for mandatory big/little inner span queries. Both arguments now have
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to be supplied at construction time already and have to be non-null. Updated
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static factory methods in QueryBuilders accordingly.
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===== WrapperQueryBuilder
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Removed `wrapperQueryBuilder(byte[] source, int offset, int length)`. Instead simply
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use `wrapperQueryBuilder(byte[] source)`. Updated the static factory methods in
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QueryBuilders accordingly.
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===== QueryStringQueryBuilder
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Removed ability to pass in boost value using `field(String field)` method in form e.g. `field^2`.
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Use the `field(String, float)` method instead.
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===== Operator
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Removed the enums called `Operator` from `MatchQueryBuilder`, `QueryStringQueryBuilder`,
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`SimpleQueryStringBuilder`, and `CommonTermsQueryBuilder` in favour of using the enum
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defined in `org.elasticsearch.index.query.Operator` in an effort to consolidate the
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codebase and avoid duplication.
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===== queryName and boost support
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Support for `queryName` and `boost` has been streamlined to all of the queries. That is
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a breaking change till queries get sent over the network as serialized json rather
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than in `Streamable` format. In fact whenever additional fields are added to the json
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representation of the query, older nodes might throw error when they find unknown fields.
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===== InnerHitsBuilder
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InnerHitsBuilder now has a dedicated addParentChildInnerHits and addNestedInnerHits methods
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to differentiate between inner hits for nested vs. parent / child documents. This change
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makes the type / path parameter mandatory.
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===== MatchQueryBuilder
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Moving MatchQueryBuilder.Type and MatchQueryBuilder.ZeroTermsQuery enum to MatchQuery.Type.
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Also reusing new Operator enum.
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===== MoreLikeThisQueryBuilder
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Removed `MoreLikeThisQueryBuilder.Item#id(String id)`, `Item#doc(BytesReference doc)`,
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`Item#doc(XContentBuilder doc)`. Use provided constructors instead.
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Removed `MoreLikeThisQueryBuilder#addLike` in favor of texts and/or items being provided
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at construction time. Using arrays there instead of lists now.
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Removed `MoreLikeThisQueryBuilder#addUnlike` in favor to using the `unlike` methods
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which take arrays as arguments now rather than the lists used before.
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The deprecated `docs(Item... docs)`, `ignoreLike(Item... docs)`,
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`ignoreLike(String... likeText)`, `addItem(Item... likeItems)` have been removed.
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===== GeoDistanceQueryBuilder
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Removing individual setters for lon() and lat() values, both values should be set together
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using point(lon, lat).
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===== GeoDistanceRangeQueryBuilder
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Removing setters for to(Object ...) and from(Object ...) in favour of the only two allowed input
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arguments (String, Number). Removing setter for center point (point(), geohash()) because parameter
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is mandatory and should already be set in constructor.
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Also removing setters for lt(), lte(), gt(), gte() since they can all be replaced by equivalent
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calls to to/from() and inludeLower()/includeUpper().
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===== GeoPolygonQueryBuilder
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Require shell of polygon already to be specified in constructor instead of adding it pointwise.
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This enables validation, but makes it necessary to remove the addPoint() methods.
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===== MultiMatchQueryBuilder
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Moving MultiMatchQueryBuilder.ZeroTermsQuery enum to MatchQuery.ZeroTermsQuery.
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Also reusing new Operator enum.
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Removed ability to pass in boost value using `field(String field)` method in form e.g. `field^2`.
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Use the `field(String, float)` method instead.
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===== MissingQueryBuilder
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The MissingQueryBuilder which was deprecated in 2.2.0 is removed. As a replacement use ExistsQueryBuilder
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inside a mustNot() clause. So instead of using `new ExistsQueryBuilder(name)` now use
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`new BoolQueryBuilder().mustNot(new ExistsQueryBuilder(name))`.
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===== NotQueryBuilder
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The NotQueryBuilder which was deprecated in 2.1.0 is removed. As a replacement use BoolQueryBuilder
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with added mustNot() clause. So instead of using `new NotQueryBuilder(filter)` now use
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`new BoolQueryBuilder().mustNot(filter)`.
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===== TermsQueryBuilder
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Remove the setter for `termsLookup()`, making it only possible to either use a TermsLookup object or
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individual values at construction time. Also moving individual settings for the TermsLookup (lookupIndex,
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lookupType, lookupId, lookupPath) to the separate TermsLookup class, using constructor only and moving
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checks for validation there. Removed `TermsLookupQueryBuilder` in favour of `TermsQueryBuilder`.
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===== FunctionScoreQueryBuilder
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`add` methods have been removed, all filters and functions must be provided as constructor arguments by
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creating an array of `FunctionScoreQueryBuilder.FilterFunctionBuilder` objects, containing one element
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for each filter/function pair.
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`scoreMode` and `boostMode` can only be provided using corresponding enum members instead
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of string values: see `FilterFunctionScoreQuery.ScoreMode` and `CombineFunction`.
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`CombineFunction.MULT` has been renamed to `MULTIPLY`.
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===== IdsQueryBuilder
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For simplicity, only one way of adding the ids to the existing list (empty by default) is left: `addIds(String...)`
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===== ShapeBuilders
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`InternalLineStringBuilder` is removed in favour of `LineStringBuilder`, `InternalPolygonBuilder` in favour of PolygonBuilder` and `Ring` has been replaced with `LineStringBuilder`. Also the abstract base classes `BaseLineStringBuilder` and `BasePolygonBuilder` haven been merged with their corresponding implementations.
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===== RescoreBuilder
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`RecoreBuilder.Rescorer` was merged with `RescoreBuilder`, which now is an abstract superclass. QueryRescoreBuilder currently is its only implementation.
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===== PhraseSuggestionBuilder
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The inner DirectCandidateGenerator class has been moved out to its own class called DirectCandidateGeneratorBuilder.
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===== SortBuilders
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The `sortMode` setter in `FieldSortBuilder`, `GeoDistanceSortBuilder` and `ScriptSortBuilder` now
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accept a `SortMode` enum instead of a String constant. Also the getter returns the same enum type.
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===== SuggestBuilder
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The `setText` method has been changed to `setGlobalText` to make the intent more clear, and a `getGlobalText` method has been added.
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The `addSuggestion` method now required the user specified suggestion name, previously used in the ctor of each suggestion.
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===== SuggestionBuilder
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The `field` setter has been deleted. Instead the field name needs to be specified as constructor argument.
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==== SearchSourceBuilder
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All methods which take an `XContentBuilder`, `BytesReference` `Map<String, Object>` or `bytes[]` have been removed in favor of providing the
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relevant builder object for that feature (e.g. `HighlightBuilder`, `AggregationBuilder`, `SuggestBuilder`) . This means that all search requests
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can now be validated at call time which results in much clearer errors.
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The `defaultResourceWindowSize(int)` method has been removed. The window size should be set explicitly on all `RescoreBuilder` objects.
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==== SearchRequestBuilder
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All methods which take an `XContentBuilder`, `BytesReference` `Map<String, Object>` or `bytes[]` have been removed in favor of providing the
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relevant builder object for that feature (e.g. `HighlightBuilder`, `AggregationBuilder`, `SuggestBuilder`) . This means that all search requests
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can now be validated at call time which results in much clearer errors.
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All highlighter methods have been removed in favor of a single `highlighter(HighlightBuilder)` method.
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The `setExtraSource(SearchSourceBuilder)` method has been removed.
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The `setTemplateSource(String)` and `setTemplateSource(BytesReference)` methods have been removed. Use `setTemplate(Template)` instead.
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`setRescorer(Rescorer)` and `setRescorer(Rescorer, int)` have been removed infavor of `setRescorer(RescoreBuilder)` and `setRescorer(RescoreBuilder, int)`
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==== SearchRequest
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All `template` methods have been removed in favor of a single `template(Template)` method.
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All `source` methods have been removed in favor of a single `source(SearchSourceBuilder)` method. This means that all search requests can now be validated
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at call time which results in much clearer errors.
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All `extraSource` methods have been removed.
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==== SearchResponse
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Sort values for `string` fields are now return as `java.lang.String` objects rather than `org.elasticsearch.common.text.Text`.
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==== AggregationBuilder
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All methods which take an `XContentBuilder`, `BytesReference` `Map<String, Object>` or `bytes[]` have been removed in favor of providing the
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relevant builder object (i.e. `subAggregation(AggregationBuilder)` or `subAggregation(PipelineAggregationBuilder)`). This means that all
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requests can now be validated at call time which results in much clearer errors.
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==== ValidateQueryRequest
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`source(QuerySourceBuilder)`, `source(Map)`, `source(XContentBuilder)`, `source(String)`, `source(byte[])`, `source(byte[], int, int)`,
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`source(BytesReference)` and `source()` have been removed in favor of using `query(QueryBuilder)` and `query()`
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==== ValidateQueryRequestBuilder
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`setSource()` methods have been removed in favor of using `setQuery(QueryBuilder)`
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==== ExplainRequest
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`source(QuerySourceBuilder)`, `source(Map)`, `source(BytesReference)` and `source()` have been removed in favor of using
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`query(QueryBuilder)` and `query()`
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==== ExplainRequestBuilder
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The `setQuery(BytesReference)` method have been removed in favor of using `setQuery(QueryBuilder)`
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=== ClusterStatsResponse
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Removed the `getMemoryAvailable` method from `OsStats`, which could be previously accessed calling
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`clusterStatsResponse.getNodesStats().getOs().getMemoryAvailable()`.
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