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OPENJPA-665: Check for null constraint on insert and update 

git-svn-id: https://svn.apache.org/repos/asf/openjpa/trunk@682610 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Pinaki Poddar 2008-08-05 07:23:41 +00:00
parent b683569de0
commit 3b00de3b26
6 changed files with 187 additions and 36 deletions
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25
openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/meta/strats/HandlerFieldStrategy.java
View File

@ -42,6 +42,7 @@ import org.apache.openjpa.meta.JavaTypes;
import org.apache.openjpa.meta.ValueStrategies;
import org.apache.openjpa.util.InternalException;
import org.apache.openjpa.util.MetaDataException;
import org.apache.openjpa.util.UserException;
/**
* Mapping for a single-valued field that delegates to a {@link ValueHandler}.
@ -122,19 +123,27 @@ public class HandlerFieldStrategy
public void insert(OpenJPAStateManager sm, JDBCStore store, RowManager rm)
throws SQLException {
Row row = field.getRow(sm, store, rm, Row.ACTION_INSERT);
if (row != null)
HandlerStrategies.set(field, sm.fetch(field.getIndex()), store,
row, _cols, _io, field.getNullValue() ==
FieldMapping.NULL_NONE);
if (row != null) {
Object value = sm.fetch(field.getIndex());
if (!HandlerStrategies.set(field, value, store, row, _cols, _io,
field.getNullValue() == FieldMapping.NULL_NONE))
if (field.getValueStrategy() != ValueStrategies.AUTOASSIGN)
throw new UserException(_loc.get("cant-set-value",
row.getFailedObject(), field, value));
}
}
public void update(OpenJPAStateManager sm, JDBCStore store, RowManager rm)
throws SQLException {
Row row = field.getRow(sm, store, rm, Row.ACTION_UPDATE);
if (row != null)
HandlerStrategies.set(field, sm.fetch(field.getIndex()), store,
row, _cols, _io, field.getNullValue() ==
FieldMapping.NULL_NONE);
if (row != null){
Object value = sm.fetch(field.getIndex());
if (!HandlerStrategies.set(field, value, store, row, _cols, _io,
field.getNullValue() == FieldMapping.NULL_NONE))
if (field.getValueStrategy() != ValueStrategies.AUTOASSIGN)
throw new UserException(_loc.get("cant-set-value",
row.getFailedObject(), field, value));
}
}
public void delete(OpenJPAStateManager sm, JDBCStore store, RowManager rm)

22
openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/meta/strats/HandlerStrategies.java
View File

@ -23,6 +23,7 @@ import java.sql.SQLException;
import org.apache.openjpa.jdbc.kernel.JDBCFetchConfiguration;
import org.apache.openjpa.jdbc.kernel.JDBCStore;
import org.apache.openjpa.jdbc.meta.ClassMapping;
import org.apache.openjpa.jdbc.meta.FieldMapping;
import org.apache.openjpa.jdbc.meta.RelationId;
import org.apache.openjpa.jdbc.meta.ValueHandler;
import org.apache.openjpa.jdbc.meta.ValueMapping;
@ -35,6 +36,7 @@ import org.apache.openjpa.jdbc.sql.Row;
import org.apache.openjpa.kernel.OpenJPAStateManager;
import org.apache.openjpa.lib.util.Localizer;
import org.apache.openjpa.util.InvalidStateException;
import org.apache.openjpa.util.UserException;
/**
* Utility methods for strategies using value handlers.
@ -78,29 +80,39 @@ public class HandlerStrategies {
/**
* Set the given value into the given row.
* Return false if the given value can not be set, for example, due to
* null constraints on the columns.
*/
public static void set(ValueMapping vm, Object val, JDBCStore store,
public static boolean set(ValueMapping vm, Object val, JDBCStore store,
Row row, Column[] cols, ColumnIO io, boolean nullNone)
throws SQLException {
if (!canSetAny(row, io, cols))
return;
return false;
ValueHandler handler = vm.getHandler();
val = handler.toDataStoreValue(vm, val, store);
boolean isSet = false;
if (val == null) {
for (int i = 0; i < cols.length; i++)
if (canSet(row, io, i, true))
if (canSet(row, io, i, true)) {
isSet = true;
set(row, cols[i], null, handler, nullNone);
}
} else if (cols.length == 1) {
if (canSet(row, io, 0, val == null))
if (canSet(row, io, 0, val == null)) {
isSet = true;
set(row, cols[0], val, handler, nullNone);
}
} else {
Object[] vals = (Object[]) val;
for (int i = 0; i < vals.length; i++)
if (canSet(row, io, i, vals[i] == null))
if (canSet(row, io, i, vals[i] == null)) {
isSet = true;
set(row, cols[i], vals[i], handler, nullNone);
}
}
return isSet;
}
/**
* Return true if the given column index is settable.

1
openjpa-jdbc/src/main/resources/org/apache/openjpa/jdbc/meta/strats/localizer.properties
View File

@ -136,3 +136,4 @@ unmapped-datastore-value: Instances of type "{0}" are not valid query \
parameters because the type is not mapped.
cache-hit: SQL Cache hit with key: {0} in {1}
cache-missed: SQL Cache missed with key: {0} in {1}
cant-set-value: Field "{1}" of "{0}" can not be set to "{2}" value.

33
openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/nullity/BlobValue.java Normal file
View File

@ -0,0 +1,33 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.openjpa.persistence.nullity;
import java.io.Serializable;
/**
* Simple serializable entity for testing null constraint on field values.
*
* @author Pinaki Poddar
*
*/
public class BlobValue implements Serializable {
private String strVal;
private int intVal;
private byte[] bytes;
}

56
openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/nullity/NullValues.java
View File

@ -21,7 +21,9 @@ package org.apache.openjpa.persistence.nullity;
import javax.persistence.Basic;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Version;
/**
* Persistent entity used to test behavior of null constraint on basic fields.
@ -32,6 +34,7 @@ import javax.persistence.Id;
@Entity
public class NullValues {
@Id
@GeneratedValue
private long id;
@Column(nullable=true)
@ -46,6 +49,22 @@ public class NullValues {
@Basic(optional=false)
private Integer notOptional;
@Column(nullable=true)
private BlobValue nullableBlob;
@Column(nullable=false)
private BlobValue notNullableBlob;
@Basic(optional=true)
private BlobValue optionalBlob;
@Basic(optional=false)
private BlobValue notOptionalBlob;
@Version
private int version;
/**
* Construct with all fields set to non-null values.
*/
@ -54,6 +73,11 @@ public class NullValues {
setNotOptional(42);
setNotNullable(42);
setNullable(42);
setNullableBlob(new BlobValue());
setNotNullableBlob(new BlobValue());
setOptionalBlob(new BlobValue());
setNotOptionalBlob(new BlobValue());
}
public long getId() {
@ -91,4 +115,36 @@ public class NullValues {
public void setNotOptional(Integer notOptional) {
this.notOptional = notOptional;
}
public BlobValue getNullableBlob() {
return nullableBlob;
}
public void setNullableBlob(BlobValue nullableBlob) {
this.nullableBlob = nullableBlob;
}
public BlobValue getNotNullableBlob() {
return notNullableBlob;
}
public void setNotNullableBlob(BlobValue notNullableBlob) {
this.notNullableBlob = notNullableBlob;
}
public BlobValue getOptionalBlob() {
return optionalBlob;
}
public void setOptionalBlob(BlobValue optionalBlob) {
this.optionalBlob = optionalBlob;
}
public BlobValue getNotOptionalBlob() {
return notOptionalBlob;
}
public void setNotOptionalBlob(BlobValue notOptionalBlob) {
this.notOptionalBlob = notOptionalBlob;
}
}

76
openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/nullity/TestBasicFieldNullity.java
View File

@ -22,6 +22,7 @@ import javax.persistence.EntityManager;
import javax.persistence.RollbackException;
import org.apache.openjpa.persistence.InvalidStateException;
import org.apache.openjpa.persistence.OpenJPAPersistence;
import org.apache.openjpa.persistence.test.SingleEMFTestCase;
@ -34,86 +35,125 @@ import org.apache.openjpa.persistence.test.SingleEMFTestCase;
* @author Pinaki Poddar
*/
public class TestBasicFieldNullity extends SingleEMFTestCase {
private static boolean NEW = true;
public void setUp() {
setUp(NullValues.class);
setUp(CLEAR_TABLES, NullValues.class);
}
public void testNullOnOptionalFieldIsAllowed() {
NullValues pc = new NullValues();
pc.setOptional(null);
assertCommitSucceeds(pc);
assertCommitSucceeds(pc, NEW);
}
public void testNullOnNonOptionalFieldIsDisallowed() {
NullValues pc = new NullValues();
pc.setNotOptional(null);
assertCommitFails(pc, InvalidStateException.class);
assertCommitFails(pc, NEW, InvalidStateException.class);
}
public void testNotNullOnOptionalFieldIsAllowed() {
NullValues pc = new NullValues();
assertCommitSucceeds(pc);
assertCommitSucceeds(pc, NEW);
}
public void testNotNullOnNonOptionalFieldIsAllowed() {
NullValues pc = new NullValues();
assertCommitSucceeds(pc);
assertCommitSucceeds(pc, NEW);
}
public void testNullOnNullableColumnAllowed() {
NullValues pc = new NullValues();
pc.setNullable(null);
assertCommitSucceeds(pc);
assertCommitSucceeds(pc, NEW);
}
public void testNullOnNonNullableColumnIsDisallowed() {
NullValues pc = new NullValues();
pc.setNotNullable(null);
assertCommitFails(pc, RollbackException.class);
assertCommitFails(pc, NEW, RollbackException.class);
}
public void testNotNullOnNullableColumnIsAllowed() {
NullValues pc = new NullValues();
assertCommitSucceeds(pc);
assertCommitSucceeds(pc, NEW);
}
public void testNotNullOnNonNullableColumnIsAllowed() {
NullValues pc = new NullValues();
assertCommitSucceeds(pc);
assertCommitSucceeds(pc, NEW);
}
public void testNullOnOptionalBlobFieldIsAllowed() {
NullValues pc = new NullValues();
pc.setOptionalBlob(null);
assertCommitSucceeds(pc, NEW);
}
public void testNullOnNonOptionalBlobFieldIsDisallowed() {
NullValues pc = new NullValues();
pc.setNotOptionalBlob(null);
assertCommitFails(pc, NEW, InvalidStateException.class);
}
public void testNullOnNullableBlobColumnAllowed() {
NullValues pc = new NullValues();
pc.setNullableBlob(null);
assertCommitSucceeds(pc, NEW);
}
public void testNullOnNonNullableBlobColumnIsDisallowed() {
NullValues pc = new NullValues();
pc.setNotNullableBlob(null);
assertCommitFails(pc, NEW, RollbackException.class);
}
public void testX() {
NullValues pc = new NullValues();
assertCommitSucceeds(pc, NEW);
OpenJPAPersistence.getEntityManager(pc).close();
pc.setNotNullableBlob(null);
assertCommitFails(pc, !NEW, RollbackException.class);
}
/**
* Asserts that the given instance can not be committed.
*/
void assertCommitFails(Object pc, Class expected) {
void assertCommitFails(Object pc, boolean isNew, Class expected) {
EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
if (isNew)
em.persist(pc);
else {
Object merged = em.merge(pc);
}
try {
em.getTransaction().commit();
fail();
} catch (RuntimeException e) {
} catch (Exception e) {
if (!expected.isAssignableFrom(e.getClass())) {
fail("Expected " + expected.getName());
e.printStackTrace();
fail("Expected " + expected.getName());
}
}
}
void assertCommitSucceeds(Object pc) {
void assertCommitSucceeds(Object pc, boolean isNew) {
EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
if (isNew)
em.persist(pc);
else
em.merge(pc);
try {
em.getTransaction().commit();
} catch (RuntimeException e) {
fail();
e.printStackTrace();
fail();
}
}
}
}