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org.apache.openjpa.jdbc.meta.strats.EmbedFieldStrategy Maven / Gradle / Ivy
/*
* 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.jdbc.meta.strats;
import java.io.InputStream;
import java.io.ObjectOutput;
import java.io.Reader;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.sql.Array;
import java.sql.Blob;
import java.sql.Clob;
import java.sql.SQLException;
import java.sql.Time;
import java.sql.Timestamp;
import java.util.BitSet;
import java.util.Calendar;
import java.util.Collection;
import java.util.Date;
import java.util.Locale;
import org.apache.openjpa.enhance.PersistenceCapable;
import org.apache.openjpa.enhance.StateManager;
import org.apache.openjpa.jdbc.kernel.EagerFetchModes;
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.Embeddable;
import org.apache.openjpa.jdbc.meta.FieldMapping;
import org.apache.openjpa.jdbc.meta.JavaSQLTypes;
import org.apache.openjpa.jdbc.meta.Joinable;
import org.apache.openjpa.jdbc.meta.RelationId;
import org.apache.openjpa.jdbc.meta.ValueMappingInfo;
import org.apache.openjpa.jdbc.schema.Column;
import org.apache.openjpa.jdbc.schema.ColumnIO;
import org.apache.openjpa.jdbc.schema.ForeignKey;
import org.apache.openjpa.jdbc.schema.Table;
import org.apache.openjpa.jdbc.sql.Joins;
import org.apache.openjpa.jdbc.sql.Result;
import org.apache.openjpa.jdbc.sql.Row;
import org.apache.openjpa.jdbc.sql.RowManager;
import org.apache.openjpa.jdbc.sql.SQLBuffer;
import org.apache.openjpa.jdbc.sql.Select;
import org.apache.openjpa.kernel.FetchConfiguration;
import org.apache.openjpa.kernel.OpenJPAStateManager;
import org.apache.openjpa.kernel.PCState;
import org.apache.openjpa.kernel.StateManagerImpl;
import org.apache.openjpa.kernel.StoreContext;
import org.apache.openjpa.lib.util.Localizer;
import org.apache.openjpa.meta.ClassMetaData;
import org.apache.openjpa.meta.FetchGroup;
import org.apache.openjpa.meta.FieldMetaData;
import org.apache.openjpa.meta.JavaTypes;
import org.apache.openjpa.meta.MetaDataModes;
import org.apache.openjpa.meta.ValueMetaData;
import org.apache.openjpa.util.InternalException;
import org.apache.openjpa.util.MetaDataException;
/**
* Mapping for an embedded persistent object.
*
* @author Abe White
* @since 0.4.0
*/
public class EmbedFieldStrategy
extends AbstractFieldStrategy
implements Embeddable {
private static final long serialVersionUID = 1L;
private static final int INSERT = 0;
private static final int UPDATE = 1;
private static final int DELETE = 2;
private static final Localizer _loc = Localizer.forPackage
(EmbedFieldStrategy.class);
private boolean _synthetic = false;
@Override
public void map(boolean adapt) {
if (field.getEmbeddedMetaData() == null)
throw new MetaDataException(_loc.get("not-embed", field));
assertNotMappedBy();
// map join key (if any)
field.mapJoin(adapt, false);
field.getKeyMapping().getValueInfo().assertNoSchemaComponents
(field.getKey(), !adapt);
field.getElementMapping().getValueInfo().assertNoSchemaComponents
(field.getElement(), !adapt);
ValueMappingInfo vinfo = field.getValueInfo();
vinfo.assertNoJoin(field, true);
vinfo.assertNoForeignKey(field, !adapt);
vinfo.assertNoUnique(field, !adapt);
vinfo.assertNoIndex(field, !adapt);
// before we map the null indicator column, we need to make sure our
// value is mapped so we can tell whether the column is synthetic
field.getValueMapping().resolve(MetaDataModes.MODE_META | MetaDataModes.MODE_MAPPING);
Column col = vinfo.getNullIndicatorColumn(field, field.getName(),
field.getTable(), adapt);
if (col != null) {
field.setColumns(new Column[]{ col });
field.setColumnIO(vinfo.getColumnIO());
}
field.mapPrimaryKey(adapt);
}
@Override
public void initialize() {
Column[] cols = field.getColumns();
if (cols.length != 1)
_synthetic = false;
else {
// do any of the embedded field mappings use this column?
// if not, consider it synthetic
Column col = cols[0];
boolean found = false;
FieldMapping[] fields = field.getEmbeddedMapping().
getFieldMappings();
for (int i = 0; !found && i < fields.length; i++) {
cols = fields[i].getColumns();
for (Column column : cols)
if (column.equals(col))
found = true;
}
_synthetic = !found;
}
}
@Override
public void insert(OpenJPAStateManager sm, JDBCStore store, RowManager rm)
throws SQLException {
Row row = field.getRow(sm, store, rm, Row.ACTION_INSERT);
if (row == null)
return;
OpenJPAStateManager em = store.getContext().getStateManager
(sm.fetchObject(field.getIndex()));
insert(sm, em, store, rm, row);
}
/**
* Insert an embedded object.
*
* @param owner the owning state manager
* @param sm the embedded state manager, or null if the value is null
* @param rm the row manager
* @param row expected row for this embedded value
*/
public void insert(OpenJPAStateManager owner, OpenJPAStateManager sm,
JDBCStore store, RowManager rm, Row row)
throws SQLException {
OpenJPAStateManager em = sm;
if (em == null)
em = new NullEmbeddedStateManager(owner, field);
rm = new EmbeddedRowManager(rm, row);
FieldMapping[] fields = field.getEmbeddedMapping().getFieldMappings();
for (FieldMapping fieldMapping : fields)
if (!Boolean.TRUE.equals(fieldMapping.isCustomInsert(em, store)))
if (!fieldMapping.isPrimaryKey())
fieldMapping.insert(em, store, rm);
if (field.getColumnIO().isInsertable(0, true))
setNullIndicatorColumn(sm, row);
}
@Override
public void update(OpenJPAStateManager sm, JDBCStore store, RowManager rm)
throws SQLException {
OpenJPAStateManager em = store.getContext().getStateManager
(sm.fetchObject(field.getIndex()));
boolean newVal = em == null || em.getPCState() == PCState.ECOPY;
Row row = null;
if (newVal && field.getJoinForeignKey() != null
&& field.isJoinOuter()) {
// if our record is in an outer-joined related table and we're not
// updating an existing value, delete the old one
Row del = rm.getRow(field.getTable(), Row.ACTION_DELETE, sm, true);
del.whereForeignKey(field.getJoinForeignKey(), sm);
delete(sm, null, store, rm, del);
// insert the new value
row = rm.getRow(field.getTable(), Row.ACTION_INSERT, sm,
em != null);
} else
row = rm.getRow(field.getTable(), Row.ACTION_UPDATE, sm, true);
if (row == null)
return;
if (row.getAction() == Row.ACTION_INSERT)
insert(sm, em, store, rm, row);
else
update(sm, em, store, rm, row);
}
/**
* Update an embedded object.
*
* @param owner the owning state manager
* @param sm the embedded state manager, or null if the value is null
* @param rm the row manager
* @param row expected row for this embedded value
*/
public void update(OpenJPAStateManager owner, OpenJPAStateManager sm,
JDBCStore store, RowManager rm, Row row)
throws SQLException {
OpenJPAStateManager em = sm;
if (em == null)
em = new NullEmbeddedStateManager(owner, field);
rm = new EmbeddedRowManager(rm, row);
FieldMapping[] fields = field.getEmbeddedMapping().getFieldMappings();
for (int i = 0; i < fields.length; i++)
if (em.getDirty().get(i)
&& !em.getFlushed().get(i)
&& !Boolean.TRUE.equals(fields[i].isCustomUpdate(em, store)))
fields[i].update(em, store, rm);
if (field.getColumnIO().isUpdatable(0, true))
setNullIndicatorColumn(sm, row);
}
@Override
public void delete(OpenJPAStateManager sm, JDBCStore store, RowManager rm)
throws SQLException {
OpenJPAStateManager em = null;
if (sm.getLoaded().get(field.getIndex()))
em = store.getContext().getStateManager(sm.fetchObject
(field.getIndex()));
Row row = field.getRow(sm, store, rm, Row.ACTION_DELETE);
delete(sm, em, store, rm, row);
}
/**
* Delete an embedded object record.
*
* @param owner the owning state manager
* @param sm the embedded state manager, or null if not known
* @param rm the row manager
* @param row expected row for this embedded value
*/
public void delete(OpenJPAStateManager owner, OpenJPAStateManager sm,
JDBCStore store, RowManager rm, Row row)
throws SQLException {
rm = new EmbeddedRowManager(rm, row);
if (sm == null)
sm = new NullEmbeddedStateManager(owner, field);
FieldMapping[] fields = field.getEmbeddedMapping().getFieldMappings();
for (FieldMapping fieldMapping : fields)
if (!Boolean.TRUE.equals(fieldMapping.isCustomDelete(sm, store)))
fieldMapping.delete(sm, store, rm);
}
/**
* Set the proper null indicator value into the given row.
*/
private void setNullIndicatorColumn(OpenJPAStateManager sm, Row row)
throws SQLException {
if (!_synthetic)
return;
Column col = field.getColumns()[0];
Object val = ((EmbeddedClassStrategy) field.getEmbeddedMapping().
getStrategy()).getNullIndicatorValue(sm);
if (val == null)
row.setNull(col, true);
else
row.setObject(col, val);
}
@Override
public Boolean isCustomInsert(OpenJPAStateManager sm, JDBCStore store) {
OpenJPAStateManager em = sm.getContext().getStateManager(sm.fetchObject
(field.getIndex()));
Boolean custom = isCustom(INSERT, sm, em, store);
if (Boolean.TRUE.equals(custom) && _synthetic)
return null;
return custom;
}
@Override
public Boolean isCustomUpdate(OpenJPAStateManager sm, JDBCStore store) {
OpenJPAStateManager em = sm.getContext().getStateManager(sm.fetchObject
(field.getIndex()));
Boolean custom = isCustom(UPDATE, sm, em, store);
if (Boolean.TRUE.equals(custom) && _synthetic)
return null;
return custom;
}
@Override
public Boolean isCustomDelete(OpenJPAStateManager sm, JDBCStore store) {
OpenJPAStateManager em = sm.getContext().getStateManager(sm.fetchObject
(field.getIndex()));
return isCustom(DELETE, sm, em, store);
}
/**
* Return whether the given action requires custom handling for any fields.
*/
private Boolean isCustom(int action, OpenJPAStateManager owner,
OpenJPAStateManager sm, JDBCStore store) {
if (sm == null)
sm = new NullEmbeddedStateManager(owner, field);
boolean hasCustom = false;
boolean hasStd = false;
FieldMapping[] fields = field.getEmbeddedMapping().getFieldMappings();
Boolean custom = null;
for (FieldMapping fieldMapping : fields) {
switch (action) {
case INSERT:
custom = fieldMapping.isCustomInsert(sm, store);
break;
case UPDATE:
custom = fieldMapping.isCustomUpdate(sm, store);
break;
case DELETE:
custom = fieldMapping.isCustomDelete(sm, store);
break;
}
if (!Boolean.FALSE.equals(custom))
hasCustom = true;
if (!Boolean.TRUE.equals(custom))
hasStd = true;
}
if (hasCustom && hasStd)
return null;
return (hasCustom) ? Boolean.TRUE : Boolean.FALSE;
}
@Override
public void customInsert(OpenJPAStateManager sm, JDBCStore store)
throws SQLException {
OpenJPAStateManager em = store.getContext().getStateManager
(sm.fetchObject(field.getIndex()));
if (em == null)
em = new NullEmbeddedStateManager(sm, field);
FieldMapping[] fields = field.getEmbeddedMapping().getFieldMappings();
for (FieldMapping fieldMapping : fields)
if (!Boolean.FALSE.equals(fieldMapping.isCustomInsert(em, store)))
fieldMapping.customInsert(em, store);
}
@Override
public void customUpdate(OpenJPAStateManager sm, JDBCStore store)
throws SQLException {
OpenJPAStateManager em = store.getContext().getStateManager
(sm.fetchObject(field.getIndex()));
if (em == null)
em = new NullEmbeddedStateManager(sm, field);
FieldMapping[] fields = field.getEmbeddedMapping().getFieldMappings();
for (int i = 0; i < fields.length; i++)
if (em.getDirty().get(i)
&& !em.getFlushed().get(i)
&& !Boolean.FALSE.equals(fields[i].isCustomUpdate(em, store)))
fields[i].customUpdate(em, store);
}
@Override
public void customDelete(OpenJPAStateManager sm, JDBCStore store)
throws SQLException {
OpenJPAStateManager em = store.getContext().getStateManager
(sm.fetchObject(field.getIndex()));
if (em == null)
em = new NullEmbeddedStateManager(sm, field);
FieldMapping[] fields = field.getEmbeddedMapping().getFieldMappings();
for (FieldMapping fieldMapping : fields)
if (!Boolean.FALSE.equals(fieldMapping.isCustomDelete(em, store)))
fieldMapping.customDelete(em, store);
}
@Override
public int supportsSelect(Select sel, int type, OpenJPAStateManager sm,
JDBCStore store, JDBCFetchConfiguration fetch) {
if (type == Select.TYPE_JOINLESS && sel.isSelected(field.getTable()))
return 1;
return 0;
}
@Override
public int select(Select sel, OpenJPAStateManager sm, JDBCStore store,
JDBCFetchConfiguration fetch, int eagerMode) {
Joins joins = field.join(sel);
sel.select(field.getColumns(), joins); // null indicator
// limit eager mode to join b/c at this point the select has been
// modified and an attempt to clone it for a to-many eager select can
// result in a clone that produces invalid SQL
eagerMode = Math.min(eagerMode, EagerFetchModes.EAGER_JOIN);
sel.select(field.getEmbeddedMapping(), Select.SUBS_EXACT, store,
fetch, eagerMode, joins);
return 1;
}
@Override
public void load(OpenJPAStateManager sm, JDBCStore store,
JDBCFetchConfiguration fetch, Result res)
throws SQLException {
Boolean isNull = indicatesNull(res);
if (isNull == null)
return;
if (Boolean.TRUE.equals(isNull)) {
sm.storeObject(field.getIndex(), null);
return;
}
// handling of lazy embeddables. if the embedded field is not part of any
// fetch group and the result does not contain any embeddable columns,
// do not load the embeddable.
if (fetch.requiresFetch(field) == FetchConfiguration.FETCH_NONE &&
!containsEmbeddedResult(fetch, res)) {
return;
}
//### note: without a null indicator column, the above indicatesNull()
//### call will always return false, meaning we always have to assume
//### we selected the embedded object fields and load the object
//### immediately; this will be inefficient when the embedded object
//### was not selected after all
StoreContext ctx = store.getContext();
OpenJPAStateManager em = ctx.embed(null, null, sm, field);
sm.storeObject(field.getIndex(), em.getManagedInstance());
boolean needsLoad = loadFields(em, store, fetch, res);
// After loading everything from result, load the rest of the
// configured fields if anything is missing.
if (needsLoad &&
fetch.requiresFetch(field.getFieldMetaData()) ==
FetchConfiguration.FETCH_LOAD) {
em.load(fetch);
}
}
/*
* finds an eager fetch field and searches for it in the result.
* if the result does not contain it, assume that it contains no embeddable
* column data. this is a fairly safe assumption given that the entire
* embeddable was marked lazy.
*/
private boolean containsEmbeddedResult(FetchConfiguration fetch, Result res) {
FieldMapping[] fields = field.getEmbeddedMapping().getFieldMappings();
boolean containsUnloadedEagerField = false;
for (FieldMapping fieldMapping : fields) {
boolean inResultSet = checkResult(fieldMapping, res);
if (inResultSet) {
// At least one of the embeddable's field is in the ResultSet.
return true;
}
if (fetch.requiresFetch(fieldMapping) == FetchConfiguration.FETCH_LOAD) {
containsUnloadedEagerField = true;
}
}
// A field expected to be loaded eagerly was missing from the ResultSet.
if (containsUnloadedEagerField) {
return false;
}
// if all fields are lazy and in the default fetch group, populate the embeddable
// so its attributes can be loaded when accessed.
return fetch.hasFetchGroup(FetchGroup.NAME_DEFAULT);
}
private boolean checkResult(FieldMapping fm, Result res) {
if (fm.getStrategy() instanceof Joinable) {
Joinable strat = (Joinable)fm.getStrategy();
Column[] cols = strat.getColumns();
for (Column col : cols) {
try {
if (res.contains(col)) {
return true;
}
} catch (Exception e) {
return false;
}
}
}
// if the field is a collection, also check for an eager result which could result from
// a non-lazy relationship in the embeddable
int type = fm.getTypeCode();
if ((type == JavaTypes.ARRAY ||
type == JavaTypes.COLLECTION ||
type == JavaTypes.MAP)
&& res.getEager(fm) != null) {
return true;
}
return false;
}
private boolean loadFields(OpenJPAStateManager em, JDBCStore store,
JDBCFetchConfiguration fetch, Result res)
throws SQLException {
FieldMapping[] fields = field.getEmbeddedMapping().getFieldMappings();
Object eres, processed;
boolean needsLoad = false;
for (int i = 0; i < fields.length; i++) {
eres = res.getEager(fields[i]);
res.startDataRequest(fields[i]);
try {
if (eres == res)
fields[i].loadEagerJoin(em, store, fetch, res);
else if (eres != null) {
processed =
fields[i].loadEagerParallel(em, store, fetch, eres);
if (processed != eres)
res.putEager(fields[i], processed);
} else {
fields[i].load(em, store, fetch, res);
}
needsLoad = needsLoad || (!em.getLoaded().get(i) &&
fetch.requiresFetch(fields[i])
== FetchConfiguration.FETCH_LOAD);
} finally {
res.endDataRequest();
}
}
return needsLoad;
}
/**
* Return whether the given result indicates that the embedded value is
* null.
*
* @return {@link Boolean#TRUE} if the value is null, {@link Boolean#FALSE}
* if it is not, or null if the result does not
* contain the embedded value
*/
private Boolean indicatesNull(Result res)
throws SQLException {
Column[] cols = field.getColumns();
if (cols.length != 1)
return Boolean.FALSE;
if (!res.contains(cols[0]))
return null;
Object obj = res.getObject(cols[0], -1, (Object) null);
if (((EmbeddedClassStrategy) field.getEmbeddedMapping().getStrategy()).
indicatesNull(obj))
return Boolean.TRUE;
return Boolean.FALSE;
}
@Override
public Object toDataStoreValue(Object val, JDBCStore store) {
ClassMapping type = field.getTypeMapping();
return type.toDataStoreValue(val, type.getPrimaryKeyColumns(), store);
}
@Override
public void appendIsNull(SQLBuffer sql, Select sel, Joins joins) {
appendTestNull(sql, sel, joins, true);
}
@Override
public void appendIsNotNull(SQLBuffer sql, Select sel, Joins joins) {
appendTestNull(sql, sel, joins, false);
}
/**
* Append SQL to test whether the embedded object is null.
*/
private void appendTestNull(SQLBuffer sql, Select sel, Joins joins,
boolean isNull) {
Column[] cols = field.getColumns();
if (cols.length != 1) {
if (isNull)
sql.append("1 <> 1");
else
sql.append("1 = 1");
return;
}
Object val;
if (cols[0].isNotNull()) {
if (_synthetic || cols[0].getDefaultString() == null)
val = JavaSQLTypes.getEmptyValue(cols[0].getJavaType());
else
val = cols[0].getDefault();
} else
val = null;
joins = join(joins, false);
sql.append(sel.getColumnAlias(cols[0], joins));
if (isNull && val == null)
sql.append(" IS ");
else if (isNull)
sql.append(" = ");
else if (val == null)
sql.append(" IS NOT ");
else
sql.append(" <> ");
sql.appendValue(val, cols[0]);
}
@Override
public Joins join(Joins joins, boolean forceOuter) {
return field.join(joins, forceOuter, false);
}
/**
* Loading embed object without instantiating owner entity
*/
@Override
public Object loadProjection(JDBCStore store, JDBCFetchConfiguration fetch,
Result res, Joins joins)
throws SQLException {
Boolean isNull = indicatesNull(res);
if (isNull == null)
return null;
StoreContext ctx = store.getContext();
// load primary key of owner entity
Object owner = field.getDefiningMapping().getObjectId(store, res,
null, true, joins);
OpenJPAStateManager em = ctx.embed(null, null, null, field);
// set owner id
((StateManagerImpl) em).setOwner(owner);
boolean needsLoad = loadFields(em, store, fetch, res);
// After loading everything from result, load the rest of the
// configured fields if anything is missing.
if (needsLoad &&
fetch.requiresFetch(field.getFieldMetaData()) ==
FetchConfiguration.FETCH_LOAD) {
em.load(fetch);
}
return em.getManagedInstance();
}
/////////////////////////////
// Embeddable implementation
/////////////////////////////
@Override
public Column[] getColumns() {
return field.getColumns();
}
@Override
public ColumnIO getColumnIO() {
return field.getColumnIO();
}
@Override
public Object[] getResultArguments() {
return null;
}
@Override
public Object toEmbeddedDataStoreValue(Object val, JDBCStore store) {
return toDataStoreValue(val, store);
}
@Override
public Object toEmbeddedObjectValue(Object val) {
//return UNSUPPORTED;
return null;
}
@Override
public void loadEmbedded(OpenJPAStateManager sm, JDBCStore store,
JDBCFetchConfiguration fetch, Object val)
throws SQLException {
if (val != null)
sm.storeObject(field.getIndex(), val);
else
sm.storeObject(field.getIndex(), null);
}
/**
* State manager that represents a null embedded object.
* Used to update embedded fields when the embedded value is null. This
* state manager doesn't require access to the old embedded value, because
* all updates are flushed before all deletes, so all foreign keys will
* be properly nulled before the related object is deleted. However, this
* state manager should not be used if possible when the parent object is
* being deleted; in that case having the original embedded state manager
* is preferable so that it can set foreign key relations to order DELETE
* statements to meet constraints.
*/
private static class NullEmbeddedStateManager
implements OpenJPAStateManager {
private static final BitSet EMPTY_BITSET = new BitSet();
private final OpenJPAStateManager _owner;
private final ValueMetaData _vmd;
private BitSet _full = null;
/**
* Constructor; supply the owner of the null/deleted embedded value,
* and the value metadata.
*/
public NullEmbeddedStateManager(OpenJPAStateManager owner,
ValueMetaData vmd) {
_owner = owner;
_vmd = vmd;
}
@Override
public void initialize(Class forType, PCState state) {
throw new InternalException();
}
@Override
public void load(FetchConfiguration fetch) {
throw new InternalException();
}
@Override
public boolean assignObjectId(boolean flush) {
throw new InternalException();
}
@Override
public Object getManagedInstance() {
return null;
}
@Override
public PersistenceCapable getPersistenceCapable() {
return null;
}
@Override
public ClassMetaData getMetaData() {
return _vmd.getEmbeddedMetaData();
}
@Override
public OpenJPAStateManager getOwner() {
return _owner;
}
@Override
public int getOwnerIndex() {
return _vmd.getFieldMetaData().getIndex();
}
@Override
public boolean isEmbedded() {
return true;
}
@Override
public boolean isTransactional() {
return true;
}
@Override
public boolean isPersistent() {
return true;
}
@Override
public boolean isNew() {
return _owner.isNew();
}
@Override
public boolean isDeleted() {
return _owner.isDeleted();
}
@Override
public boolean isDetached() {
return _owner.isDetached();
}
@Override
public boolean isVersionUpdateRequired() {
return _owner.isVersionUpdateRequired();
}
@Override
public boolean isVersionCheckRequired() {
return _owner.isVersionCheckRequired();
}
@Override
public boolean isDirty() {
return true;
}
@Override
public boolean isFlushed() {
return _owner.isFlushed();
}
@Override
public boolean isFlushedDirty() {
return isFlushed();
}
@Override
public boolean isProvisional() {
return _owner.isProvisional();
}
@Override
public BitSet getLoaded() {
// consider everything loaded
if (_full == null) {
FieldMetaData[] fmds = _vmd.getEmbeddedMetaData().getFields();
_full = new BitSet(fmds.length);
for (int i = 0; i < fmds.length; i++)
_full.set(i);
}
return _full;
}
@Override
public BitSet getDirty() {
// consider everything dirty
if (_full == null) {
FieldMetaData[] fmds = _vmd.getEmbeddedMetaData().getFields();
_full = new BitSet(fmds.length);
for (int i = 0; i < fmds.length; i++)
_full.set(i);
}
return _full;
}
@Override
public BitSet getFlushed() {
return EMPTY_BITSET;
}
@Override
public BitSet getUnloaded(FetchConfiguration fetch) {
throw new InternalException();
}
@Override
public Object newProxy(int field) {
throw new InternalException();
}
@Override
public Object newFieldProxy(int field) {
throw new InternalException();
}
@Override
public boolean isDefaultValue(int field) {
return true;
}
@Override
public StoreContext getContext() {
return _owner.getContext();
}
@Override
public Object getId() {
return _owner.getId();
}
@Override
public Object getObjectId() {
return _owner.getObjectId();
}
@Override
public void setObjectId(Object oid) {
throw new InternalException();
}
@Override
public Object getLock() {
return null;
}
@Override
public void setLock(Object lock) {
throw new InternalException();
}
@Override
public Object getVersion() {
return null;
}
@Override
public void setVersion(Object version) {
throw new InternalException();
}
@Override
public void setNextVersion(Object version) {
throw new InternalException();
}
@Override
public PCState getPCState() {
return (_owner.isDeleted()) ? PCState.EDELETED : PCState.ECOPY;
}
@Override
public Object getImplData() {
return null;
}
@Override
public Object setImplData(Object data, boolean cacheable) {
throw new InternalException();
}
@Override
public boolean isImplDataCacheable() {
return false;
}
@Override
public Object getImplData(int field) {
return null;
}
@Override
public Object setImplData(int field, Object data) {
throw new InternalException();
}
@Override
public boolean isImplDataCacheable(int field) {
return false;
}
@Override
public Object getIntermediate(int field) {
return null;
}
@Override
public void setIntermediate(int field, Object value) {
throw new InternalException();
}
@Override
public boolean fetchBooleanField(int field) {
return false;
}
@Override
public byte fetchByteField(int field) {
return (byte) 0;
}
@Override
public char fetchCharField(int field) {
return (char) 0;
}
@Override
public double fetchDoubleField(int field) {
return 0D;
}
@Override
public float fetchFloatField(int field) {
return 0F;
}
@Override
public int fetchIntField(int field) {
return 0;
}
@Override
public long fetchLongField(int field) {
return 0L;
}
@Override
public Object fetchObjectField(int field) {
return null;
}
@Override
public short fetchShortField(int field) {
return (short) 0;
}
@Override
public String fetchStringField(int field) {
return null;
}
@Override
public Object fetchField(int field, boolean transitions) {
return null;
}
@Override
public void storeBooleanField(int field, boolean externalVal) {
throw new InternalException();
}
@Override
public void storeByteField(int field, byte externalVal) {
throw new InternalException();
}
@Override
public void storeCharField(int field, char externalVal) {
throw new InternalException();
}
@Override
public void storeDoubleField(int field, double externalVal) {
throw new InternalException();
}
@Override
public void storeFloatField(int field, float externalVal) {
throw new InternalException();
}
@Override
public void storeIntField(int field, int externalVal) {
throw new InternalException();
}
@Override
public void storeLongField(int field, long externalVal) {
throw new InternalException();
}
@Override
public void storeObjectField(int field, Object externalVal) {
throw new InternalException();
}
@Override
public void storeShortField(int field, short externalVal) {
throw new InternalException();
}
@Override
public void storeStringField(int field, String externalVal) {
throw new InternalException();
}
@Override
public void storeField(int field, Object value) {
throw new InternalException();
}
@Override
public boolean fetchBoolean(int field) {
return false;
}
@Override
public byte fetchByte(int field) {
return (byte) 0;
}
@Override
public char fetchChar(int field) {
return (char) 0;
}
@Override
public double fetchDouble(int field) {
return 0D;
}
@Override
public float fetchFloat(int field) {
return 0F;
}
@Override
public int fetchInt(int field) {
return 0;
}
@Override
public long fetchLong(int field) {
return 0L;
}
@Override
public Object fetchObject(int field) {
return null;
}
@Override
public short fetchShort(int field) {
return (short) 0;
}
@Override
public String fetchString(int field) {
return null;
}
@Override
public Object fetch(int field) {
return null;
}
@Override
public void storeBoolean(int field, boolean externalVal) {
throw new InternalException();
}
@Override
public void storeByte(int field, byte externalVal) {
throw new InternalException();
}
@Override
public void storeChar(int field, char externalVal) {
throw new InternalException();
}
@Override
public void storeDouble(int field, double externalVal) {
throw new InternalException();
}
@Override
public void storeFloat(int field, float externalVal) {
throw new InternalException();
}
@Override
public void storeInt(int field, int externalVal) {
throw new InternalException();
}
@Override
public void storeLong(int field, long externalVal) {
throw new InternalException();
}
@Override
public void storeObject(int field, Object externalVal) {
throw new InternalException();
}
@Override
public void storeShort(int field, short externalVal) {
throw new InternalException();
}
@Override
public void storeString(int field, String externalVal) {
throw new InternalException();
}
@Override
public void store(int field, Object value) {
throw new InternalException();
}
@Override
public Object fetchInitialField(int field) {
throw new InternalException();
}
@Override
public void dirty(int field) {
throw new InternalException();
}
@Override
public void removed(int field, Object removed, boolean key) {
throw new InternalException();
}
@Override
public boolean beforeRefresh(boolean refreshAll) {
throw new InternalException();
}
@Override
public void setRemote(int field, Object value) {
throw new InternalException();
}
///////////////////////////////
// StateManager implementation
///////////////////////////////
@Override
public Object getPCPrimaryKey(Object oid, int field) {
throw new InternalException();
}
@Override
public StateManager replaceStateManager(StateManager sm) {
throw new InternalException();
}
@Override
public Object getGenericContext() {
return getContext();
}
@Override
public void dirty(String field) {
throw new InternalException();
}
@Override
public Object fetchObjectId() {
return getObjectId();
}
@Override
public void accessingField(int field) {
}
@Override
public boolean serializing() {
throw new InternalException();
}
@Override
public boolean writeDetached(ObjectOutput out) {
throw new InternalException();
}
@Override
public void proxyDetachedDeserialized(int idx) {
throw new InternalException();
}
@Override
public void settingBooleanField(PersistenceCapable pc, int field,
boolean val1, boolean val2, int set) {
throw new InternalException();
}
@Override
public void settingCharField(PersistenceCapable pc, int field,
char val1, char val2, int set) {
throw new InternalException();
}
@Override
public void settingByteField(PersistenceCapable pc, int field,
byte val1, byte val2, int set) {
throw new InternalException();
}
@Override
public void settingShortField(PersistenceCapable pc, int field,
short val1, short val2, int set) {
throw new InternalException();
}
@Override
public void settingIntField(PersistenceCapable pc, int field,
int val1, int val2, int set) {
throw new InternalException();
}
@Override
public void settingLongField(PersistenceCapable pc, int field,
long val1, long val2, int set) {
throw new InternalException();
}
@Override
public void settingFloatField(PersistenceCapable pc, int field,
float val1, float val2, int set) {
throw new InternalException();
}
@Override
public void settingDoubleField(PersistenceCapable pc, int field,
double val1, double val2, int set) {
throw new InternalException();
}
@Override
public void settingStringField(PersistenceCapable pc, int field,
String val1, String val2, int set) {
throw new InternalException();
}
@Override
public void settingObjectField(PersistenceCapable pc, int field,
Object val1, Object val2, int set) {
throw new InternalException();
}
@Override
public void providedBooleanField(PersistenceCapable pc, int field,
boolean val) {
throw new InternalException();
}
@Override
public void providedCharField(PersistenceCapable pc, int field,
char val) {
throw new InternalException();
}
@Override
public void providedByteField(PersistenceCapable pc, int field,
byte val) {
throw new InternalException();
}
@Override
public void providedShortField(PersistenceCapable pc, int field,
short val) {
throw new InternalException();
}
@Override
public void providedIntField(PersistenceCapable pc, int field,
int val) {
throw new InternalException();
}
@Override
public void providedLongField(PersistenceCapable pc, int field,
long val) {
throw new InternalException();
}
@Override
public void providedFloatField(PersistenceCapable pc, int field,
float val) {
throw new InternalException();
}
@Override
public void providedDoubleField(PersistenceCapable pc, int field,
double val) {
throw new InternalException();
}
@Override
public void providedStringField(PersistenceCapable pc, int field,
String val) {
throw new InternalException();
}
@Override
public void providedObjectField(PersistenceCapable pc, int field,
Object val) {
throw new InternalException();
}
@Override
public boolean replaceBooleanField(PersistenceCapable pc, int field) {
throw new InternalException();
}
@Override
public char replaceCharField(PersistenceCapable pc, int field) {
throw new InternalException();
}
@Override
public byte replaceByteField(PersistenceCapable pc, int field) {
throw new InternalException();
}
@Override
public short replaceShortField(PersistenceCapable pc, int field) {
throw new InternalException();
}
@Override
public int replaceIntField(PersistenceCapable pc, int field) {
throw new InternalException();
}
@Override
public long replaceLongField(PersistenceCapable pc, int field) {
throw new InternalException();
}
@Override
public float replaceFloatField(PersistenceCapable pc, int field) {
throw new InternalException();
}
@Override
public double replaceDoubleField(PersistenceCapable pc, int field) {
throw new InternalException();
}
@Override
public String replaceStringField(PersistenceCapable pc, int field) {
throw new InternalException();
}
@Override
public Object replaceObjectField(PersistenceCapable pc, int field) {
throw new InternalException();
}
@Override
public boolean isDelayed(int field) {
return false;
}
@Override
public void setDelayed(int field, boolean delay) {
throw new InternalException();
}
@Override
public void loadDelayedField(int field) {
throw new UnsupportedOperationException();
}
}
/**
* Special row manager type that unwraps embedded objects.
*/
private static class EmbeddedRowManager
implements RowManager {
private final RowManager _rm;
private final Row _row;
public EmbeddedRowManager(RowManager delegate, Row row) {
_rm = delegate;
_row = (row == null) ? null : new EmbeddedRow(row);
}
public boolean hasAutoAssignConstraints() {
return false;
}
public Collection getInserts() {
throw new InternalException();
}
public Collection getUpdates() {
throw new InternalException();
}
public Collection getDeletes() {
throw new InternalException();
}
public Collection getSecondaryUpdates() {
throw new InternalException();
}
public Collection getSecondaryDeletes() {
throw new InternalException();
}
public Collection getAllRowUpdates() {
throw new InternalException();
}
public Collection getAllRowDeletes() {
throw new InternalException();
}
@Override
public Row getRow(Table table, int action, OpenJPAStateManager sm,
boolean create) {
while (sm != null && sm.getOwner() != null)
sm = sm.getOwner();
if (_row != null && table == _row.getTable()
&& action == _row.getAction())
return _row;
return new EmbeddedRow(_rm.getRow(table, action, sm, create));
}
@Override
public Row getSecondaryRow(Table table, int action) {
return new EmbeddedRow(_rm.getSecondaryRow(table, action));
}
@Override
public void flushSecondaryRow(Row row)
throws SQLException {
_rm.flushSecondaryRow(((EmbeddedRow) row).getDelegate());
}
@Override
public Row getAllRows(Table table, int action) {
return new EmbeddedRow(_rm.getAllRows(table, action));
}
@Override
public void flushAllRows(Row row)
throws SQLException {
_rm.flushAllRows(((EmbeddedRow) row).getDelegate());
}
}
/**
* Special row type that unwraps embedded objects.
*/
private static class EmbeddedRow
implements Row {
private final Row _row;
public EmbeddedRow(Row delegate) {
_row = delegate;
}
public Row getDelegate() {
return _row;
}
@Override
public boolean isValid() {
return _row.isValid();
}
@Override
public void setValid(boolean valid) {
_row.setValid(valid);
}
@Override
public void setPrimaryKey(OpenJPAStateManager sm)
throws SQLException {
_row.setPrimaryKey(getOwner(sm));
}
@Override
public void setPrimaryKey(ColumnIO io, OpenJPAStateManager sm)
throws SQLException {
_row.setPrimaryKey(io, getOwner(sm));
}
@Override
public void wherePrimaryKey(OpenJPAStateManager sm)
throws SQLException {
_row.wherePrimaryKey(getOwner(sm));
}
@Override
public void setForeignKey(ForeignKey fk, OpenJPAStateManager sm)
throws SQLException {
_row.setForeignKey(fk, getOwner(sm));
}
@Override
public void setForeignKey(ForeignKey fk, ColumnIO io,
OpenJPAStateManager sm)
throws SQLException {
_row.setForeignKey(fk, io, getOwner(sm));
}
@Override
public void whereForeignKey(ForeignKey fk, OpenJPAStateManager sm)
throws SQLException {
_row.whereForeignKey(fk, getOwner(sm));
}
@Override
public void setRelationId(Column col, OpenJPAStateManager sm,
RelationId rel)
throws SQLException {
_row.setRelationId(col, getOwner(sm), rel);
}
private OpenJPAStateManager getOwner(OpenJPAStateManager sm) {
while (sm != null && sm.getOwner() != null)
sm = sm.getOwner();
return sm;
}
////////////////////////
// Pass-through methods
////////////////////////
@Override
public Table getTable() {
return _row.getTable();
}
@Override
public int getAction() {
return _row.getAction();
}
@Override
public Object getFailedObject() {
return _row.getFailedObject();
}
@Override
public void setFailedObject(Object failed) {
_row.setFailedObject(failed);
}
@Override
public OpenJPAStateManager getPrimaryKey() {
return _row.getPrimaryKey();
}
@Override
public void setArray(Column col, Array val)
throws SQLException {
_row.setArray(col, val);
}
@Override
public void setAsciiStream(Column col, InputStream val, int length)
throws SQLException {
_row.setAsciiStream(col, val, length);
}
@Override
public void setBigDecimal(Column col, BigDecimal val)
throws SQLException {
_row.setBigDecimal(col, val);
}
@Override
public void setBigInteger(Column col, BigInteger val)
throws SQLException {
_row.setBigInteger(col, val);
}
@Override
public void setBinaryStream(Column col, InputStream val, int length)
throws SQLException {
_row.setBinaryStream(col, val, length);
}
@Override
public void setBlob(Column col, Blob val)
throws SQLException {
_row.setBlob(col, val);
}
@Override
public void setBoolean(Column col, boolean val)
throws SQLException {
_row.setBoolean(col, val);
}
@Override
public void setByte(Column col, byte val)
throws SQLException {
_row.setByte(col, val);
}
@Override
public void setBytes(Column col, byte[] val)
throws SQLException {
_row.setBytes(col, val);
}
@Override
public void setCalendar(Column col, Calendar val)
throws SQLException {
_row.setCalendar(col, val);
}
@Override
public void setChar(Column col, char val)
throws SQLException {
_row.setChar(col, val);
}
@Override
public void setCharacterStream(Column col, Reader val, int length)
throws SQLException {
_row.setCharacterStream(col, val, length);
}
@Override
public void setClob(Column col, Clob val)
throws SQLException {
_row.setClob(col, val);
}
@Override
public void setDate(Column col, Date val)
throws SQLException {
_row.setDate(col, val);
}
@Override
public void setDate(Column col, java.sql.Date val, Calendar cal)
throws SQLException {
_row.setDate(col, val, cal);
}
@Override
public void setDouble(Column col, double val)
throws SQLException {
_row.setDouble(col, val);
}
@Override
public void setFloat(Column col, float val)
throws SQLException {
_row.setFloat(col, val);
}
@Override
public void setInt(Column col, int val)
throws SQLException {
_row.setInt(col, val);
}
@Override
public void setLong(Column col, long val)
throws SQLException {
_row.setLong(col, val);
}
@Override
public void setLocale(Column col, Locale val)
throws SQLException {
_row.setLocale(col, val);
}
@Override
public void setNull(Column col)
throws SQLException {
_row.setNull(col);
}
@Override
public void setNull(Column col, boolean overrideDefault)
throws SQLException {
_row.setNull(col, overrideDefault);
}
@Override
public void setNumber(Column col, Number val)
throws SQLException {
_row.setNumber(col, val);
}
@Override
public void setObject(Column col, Object val)
throws SQLException {
_row.setObject(col, val);
}
@Override
public void setRaw(Column col, String val)
throws SQLException {
_row.setRaw(col, val);
}
@Override
public void setShort(Column col, short val)
throws SQLException {
_row.setShort(col, val);
}
@Override
public void setString(Column col, String val)
throws SQLException {
_row.setString(col, val);
}
@Override
public void setTime(Column col, Time val, Calendar cal)
throws SQLException {
_row.setTime(col, val, cal);
}
@Override
public void setTimestamp(Column col, Timestamp val, Calendar cal)
throws SQLException {
_row.setTimestamp(col, val, cal);
}
@Override
public void whereArray(Column col, Array val)
throws SQLException {
_row.whereArray(col, val);
}
@Override
public void whereAsciiStream(Column col, InputStream val, int length)
throws SQLException {
_row.whereAsciiStream(col, val, length);
}
@Override
public void whereBigDecimal(Column col, BigDecimal val)
throws SQLException {
_row.whereBigDecimal(col, val);
}
@Override
public void whereBigInteger(Column col, BigInteger val)
throws SQLException {
_row.whereBigInteger(col, val);
}
@Override
public void whereBinaryStream(Column col, InputStream val, int length)
throws SQLException {
_row.whereBinaryStream(col, val, length);
}
@Override
public void whereBlob(Column col, Blob val)
throws SQLException {
_row.whereBlob(col, val);
}
@Override
public void whereBoolean(Column col, boolean val)
throws SQLException {
_row.whereBoolean(col, val);
}
@Override
public void whereByte(Column col, byte val)
throws SQLException {
_row.whereByte(col, val);
}
@Override
public void whereBytes(Column col, byte[] val)
throws SQLException {
_row.whereBytes(col, val);
}
@Override
public void whereCalendar(Column col, Calendar val)
throws SQLException {
_row.whereCalendar(col, val);
}
@Override
public void whereChar(Column col, char val)
throws SQLException {
_row.whereChar(col, val);
}
@Override
public void whereCharacterStream(Column col, Reader val, int length)
throws SQLException {
_row.whereCharacterStream(col, val, length);
}
@Override
public void whereClob(Column col, Clob val)
throws SQLException {
_row.whereClob(col, val);
}
@Override
public void whereDate(Column col, Date val)
throws SQLException {
_row.whereDate(col, val);
}
@Override
public void whereDate(Column col, java.sql.Date val, Calendar cal)
throws SQLException {
_row.whereDate(col, val, cal);
}
@Override
public void whereDouble(Column col, double val)
throws SQLException {
_row.whereDouble(col, val);
}
@Override
public void whereFloat(Column col, float val)
throws SQLException {
_row.whereFloat(col, val);
}
@Override
public void whereInt(Column col, int val)
throws SQLException {
_row.whereInt(col, val);
}
@Override
public void whereLong(Column col, long val)
throws SQLException {
_row.whereLong(col, val);
}
@Override
public void whereLocale(Column col, Locale val)
throws SQLException {
_row.whereLocale(col, val);
}
@Override
public void whereNull(Column col)
throws SQLException {
_row.whereNull(col);
}
@Override
public void whereNumber(Column col, Number val)
throws SQLException {
_row.whereNumber(col, val);
}
@Override
public void whereObject(Column col, Object val)
throws SQLException {
_row.whereObject(col, val);
}
@Override
public void whereRaw(Column col, String val)
throws SQLException {
_row.whereRaw(col, val);
}
@Override
public void whereShort(Column col, short val)
throws SQLException {
_row.whereShort(col, val);
}
@Override
public void whereString(Column col, String val)
throws SQLException {
_row.whereString(col, val);
}
@Override
public void whereTime(Column col, Time val, Calendar cal)
throws SQLException {
_row.whereTime(col, val, cal);
}
@Override
public void whereTimestamp(Column col, Timestamp val, Calendar cal)
throws SQLException {
_row.whereTimestamp(col, val, cal);
}
}
}
