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/*
* 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.kernel;
import java.io.ObjectOutput;
import java.util.BitSet;
import org.apache.openjpa.enhance.FieldManager;
import org.apache.openjpa.enhance.PersistenceCapable;
import org.apache.openjpa.enhance.StateManager;
import org.apache.openjpa.lib.util.Localizer;
import org.apache.openjpa.meta.ClassMetaData;
import org.apache.openjpa.meta.FieldMetaData;
import org.apache.openjpa.meta.JavaTypes;
import org.apache.openjpa.util.ImplHelper;
import org.apache.openjpa.util.InternalException;
import org.apache.openjpa.util.UnsupportedException;
/**
* Implementation of {@link OpenJPAStateManager} designed to retrieve
* values from a detached instance, including when managed by a
* {@link DetachedStateManager}.
*/
public class DetachedValueStateManager
extends TransferFieldManager
implements OpenJPAStateManager {
private static final Localizer _loc = Localizer.forPackage
(DetachedValueStateManager.class);
private PersistenceCapable _pc;
private StoreContext _ctx;
private ClassMetaData _meta;
public DetachedValueStateManager(Object pc, StoreContext ctx) {
this(ImplHelper.toPersistenceCapable(pc, ctx.getConfiguration()),
ctx.getConfiguration().getMetaDataRepositoryInstance()
.getMetaData(ImplHelper.getManagedInstance(pc).getClass(),
ctx.getClassLoader(), true), ctx);
}
public DetachedValueStateManager(PersistenceCapable pc, ClassMetaData meta,
StoreContext ctx) {
_pc = ImplHelper.toPersistenceCapable(pc, ctx.getConfiguration());
_meta = meta;
_ctx = ctx;
}
@Override
public void initialize(Class forType, PCState state) {
throw new UnsupportedOperationException();
}
@Override
public void load(FetchConfiguration fetch) {
throw new UnsupportedOperationException();
}
@Override
public Object getManagedInstance() {
return _pc;
}
@Override
public PersistenceCapable getPersistenceCapable() {
return _pc;
}
@Override
public ClassMetaData getMetaData() {
return _meta;
}
@Override
public OpenJPAStateManager getOwner() {
return null;
}
@Override
public int getOwnerIndex() {
throw new UnsupportedOperationException();
}
@Override
public boolean isEmbedded() {
return false;
}
@Override
public boolean isFlushed() {
return false;
}
@Override
public boolean isFlushedDirty() {
return false;
}
@Override
public boolean isProvisional() {
return false;
}
@Override
public BitSet getLoaded() {
throw new UnsupportedOperationException();
}
@Override
public BitSet getDirty() {
throw new UnsupportedOperationException();
}
@Override
public BitSet getFlushed() {
throw new UnsupportedOperationException();
}
@Override
public BitSet getUnloaded(FetchConfiguration fetch) {
throw new UnsupportedOperationException();
}
@Override
public Object newProxy(int field) {
throw new UnsupportedOperationException();
}
@Override
public Object newFieldProxy(int field) {
throw new UnsupportedOperationException();
}
@Override
public boolean isDefaultValue(int field) {
throw new UnsupportedOperationException();
}
@Override
public StoreContext getContext() {
return _ctx;
}
@Override
public PCState getPCState() {
throw new UnsupportedOperationException();
}
@Override
public Object getId() {
return getObjectId();
}
@Override
public Object getObjectId() {
throw new UnsupportedOperationException();
}
@Override
public void setObjectId(Object oid) {
throw new UnsupportedOperationException();
}
@Override
public boolean assignObjectId(boolean flush) {
throw new UnsupportedOperationException();
}
@Override
public Object getLock() {
throw new UnsupportedOperationException();
}
@Override
public void setLock(Object lock) {
throw new UnsupportedOperationException();
}
@Override
public Object getVersion() {
throw new UnsupportedOperationException();
}
@Override
public void setVersion(Object version) {
throw new UnsupportedOperationException();
}
@Override
public void setNextVersion(Object version) {
throw new UnsupportedOperationException();
}
@Override
public boolean isVersionUpdateRequired() {
throw new UnsupportedOperationException();
}
@Override
public boolean isVersionCheckRequired() {
throw new UnsupportedOperationException();
}
@Override
public Object getImplData() {
throw new UnsupportedOperationException();
}
@Override
public Object setImplData(Object data, boolean cacheable) {
throw new UnsupportedOperationException();
}
@Override
public boolean isImplDataCacheable() {
throw new UnsupportedOperationException();
}
@Override
public Object getImplData(int field) {
throw new UnsupportedOperationException();
}
@Override
public Object setImplData(int field, Object data) {
throw new UnsupportedOperationException();
}
@Override
public boolean isImplDataCacheable(int field) {
throw new UnsupportedOperationException();
}
@Override
public Object getIntermediate(int field) {
throw new UnsupportedOperationException();
}
@Override
public void setIntermediate(int field, Object value) {
throw new UnsupportedOperationException();
}
void provideField(int field) {
if (_pc.pcGetStateManager() != null)
throw new InternalException(_loc.get("detach-val-mismatch", _pc));
_pc.pcReplaceStateManager(this);
_pc.pcProvideField(field);
_pc.pcReplaceStateManager(null);
}
@Override
public boolean fetchBoolean(int field) {
throw new UnsupportedOperationException();
}
@Override
public byte fetchByte(int field) {
throw new UnsupportedOperationException();
}
@Override
public char fetchChar(int field) {
throw new UnsupportedOperationException();
}
@Override
public double fetchDouble(int field) {
throw new UnsupportedOperationException();
}
@Override
public float fetchFloat(int field) {
throw new UnsupportedOperationException();
}
@Override
public int fetchInt(int field) {
throw new UnsupportedOperationException();
}
@Override
public long fetchLong(int field) {
throw new UnsupportedOperationException();
}
@Override
public Object fetchObject(int field) {
throw new UnsupportedOperationException();
}
@Override
public short fetchShort(int field) {
throw new UnsupportedOperationException();
}
@Override
public String fetchString(int field) {
throw new UnsupportedOperationException();
}
public Object fetchFromDetachedSM(DetachedStateManager sm, int field) {
sm.lock();
sm.provideField(field);
Object val = fetchField(sm, field);
sm.clear();
sm.unlock();
return val;
}
@Override
public Object fetch(int field) {
StateManager sm = _pc.pcGetStateManager();
if (sm != null) {
if (sm instanceof DetachedStateManager)
return fetchFromDetachedSM((DetachedStateManager) sm, field);
if (_ctx.getAllowReferenceToSiblingContext() && sm instanceof StateManagerImpl) {
return ((StateManagerImpl) sm).fetch(field);
}
throw new UnsupportedException(_loc.get("detach-val-badsm", _pc));
}
provideField(field);
Object val = fetchField(field, false);
clear();
return _meta.getField(field).getExternalValue(val, _ctx.getBroker());
}
@Override
public Object fetchField(int field, boolean transitions) {
if (transitions)
throw new IllegalArgumentException();
return fetchField(this, field);
}
private Object fetchField(FieldManager fm, int field) {
FieldMetaData fmd = _meta.getField(field);
if (fmd == null)
throw new InternalException();
switch (fmd.getDeclaredTypeCode()) {
case JavaTypes.STRING:
return fm.fetchStringField(field);
case JavaTypes.OBJECT:
return fm.fetchObjectField(field);
case JavaTypes.BOOLEAN:
return (fm.fetchBooleanField(field)) ? Boolean.TRUE
: Boolean.FALSE;
case JavaTypes.BYTE:
return fm.fetchByteField(field);
case JavaTypes.CHAR:
return fm.fetchCharField(field);
case JavaTypes.DOUBLE:
return fm.fetchDoubleField(field);
case JavaTypes.FLOAT:
return fm.fetchFloatField(field);
case JavaTypes.INT:
return fm.fetchIntField(field);
case JavaTypes.LONG:
return fm.fetchLongField(field);
case JavaTypes.SHORT:
return fm.fetchShortField(field);
default:
return fm.fetchObjectField(field);
}
}
@Override
public Object fetchInitialField(int field) {
throw new UnsupportedOperationException();
}
@Override
public void storeBoolean(int field, boolean externalVal) {
throw new UnsupportedOperationException();
}
@Override
public void storeByte(int field, byte externalVal) {
throw new UnsupportedOperationException();
}
@Override
public void storeChar(int field, char externalVal) {
throw new UnsupportedOperationException();
}
@Override
public void storeDouble(int field, double externalVal) {
throw new UnsupportedOperationException();
}
@Override
public void storeFloat(int field, float externalVal) {
throw new UnsupportedOperationException();
}
@Override
public void storeInt(int field, int externalVal) {
throw new UnsupportedOperationException();
}
@Override
public void storeLong(int field, long externalVal) {
throw new UnsupportedOperationException();
}
@Override
public void storeObject(int field, Object externalVal) {
throw new UnsupportedOperationException();
}
@Override
public void storeShort(int field, short externalVal) {
throw new UnsupportedOperationException();
}
@Override
public void storeString(int field, String externalVal) {
throw new UnsupportedOperationException();
}
@Override
public void store(int field, Object value) {
throw new UnsupportedOperationException();
}
@Override
public void storeField(int field, Object value) {
throw new UnsupportedOperationException();
}
@Override
public void dirty(int field) {
throw new UnsupportedOperationException();
}
@Override
public void removed(int field, Object removed, boolean key) {
throw new UnsupportedOperationException();
}
@Override
public boolean beforeRefresh(boolean refreshAll) {
throw new UnsupportedOperationException();
}
@Override
public void setRemote(int field, Object value) {
throw new UnsupportedOperationException();
}
///////////////////////////////
// StateManager implementation
///////////////////////////////
@Override
public Object getGenericContext() {
return _ctx;
}
@Override
public Object getPCPrimaryKey(Object oid, int field) {
throw new UnsupportedOperationException();
}
@Override
public StateManager replaceStateManager(StateManager sm) {
return sm;
}
@Override
public boolean isDirty() {
return true;
}
@Override
public boolean isTransactional() {
return false;
}
@Override
public boolean isPersistent() {
return true;
}
@Override
public boolean isNew() {
return false;
}
@Override
public boolean isDeleted() {
return false;
}
@Override
public boolean isDetached() {
return true;
}
@Override
public void dirty(String field) {
throw new UnsupportedOperationException();
}
@Override
public Object fetchObjectId() {
return getObjectId();
}
@Override
public boolean serializing() {
throw new UnsupportedOperationException();
}
@Override
public boolean writeDetached(ObjectOutput out) {
throw new UnsupportedOperationException();
}
@Override
public void proxyDetachedDeserialized(int idx) {
throw new UnsupportedOperationException();
}
@Override
public void accessingField(int idx) {
throw new UnsupportedOperationException();
}
@Override
public void providedBooleanField(PersistenceCapable pc, int idx,
boolean cur) {
longval = cur ? 1 : 0;
}
@Override
public void providedCharField(PersistenceCapable pc, int idx, char cur) {
longval = cur;
}
@Override
public void providedByteField(PersistenceCapable pc, int idx, byte cur) {
longval = cur;
}
@Override
public void providedShortField(PersistenceCapable pc, int idx, short cur) {
longval = cur;
}
@Override
public void providedIntField(PersistenceCapable pc, int idx, int cur) {
longval = cur;
}
@Override
public void providedLongField(PersistenceCapable pc, int idx, long cur) {
longval = cur;
}
@Override
public void providedFloatField(PersistenceCapable pc, int idx, float cur) {
dblval = cur;
}
@Override
public void providedDoubleField(PersistenceCapable pc, int idx,
double cur) {
dblval = cur;
}
@Override
public void providedStringField(PersistenceCapable pc, int idx,
String cur) {
objval = cur;
}
@Override
public void providedObjectField(PersistenceCapable pc, int idx,
Object cur) {
objval = cur;
}
@Override
public void settingBooleanField(PersistenceCapable pc, int idx,
boolean cur, boolean next, int set) {
throw new UnsupportedOperationException();
}
@Override
public void settingCharField(PersistenceCapable pc, int idx, char cur,
char next, int set) {
throw new UnsupportedOperationException();
}
@Override
public void settingByteField(PersistenceCapable pc, int idx, byte cur,
byte next, int set) {
throw new UnsupportedOperationException();
}
@Override
public void settingShortField(PersistenceCapable pc, int idx, short cur,
short next, int set) {
throw new UnsupportedOperationException();
}
@Override
public void settingIntField(PersistenceCapable pc, int idx, int cur,
int next, int set) {
throw new UnsupportedOperationException();
}
@Override
public void settingLongField(PersistenceCapable pc, int idx, long cur,
long next, int set) {
throw new UnsupportedOperationException();
}
@Override
public void settingFloatField(PersistenceCapable pc, int idx, float cur,
float next, int set) {
throw new UnsupportedOperationException();
}
@Override
public void settingDoubleField(PersistenceCapable pc, int idx, double cur,
double next, int set) {
throw new UnsupportedOperationException();
}
@Override
public void settingStringField(PersistenceCapable pc, int idx, String cur,
String next, int set) {
throw new UnsupportedOperationException();
}
@Override
public void settingObjectField(PersistenceCapable pc, int idx, Object cur,
Object next, int set) {
throw new UnsupportedOperationException();
}
@Override
public boolean replaceBooleanField(PersistenceCapable pc, int idx) {
throw new UnsupportedOperationException();
}
@Override
public char replaceCharField(PersistenceCapable pc, int idx) {
throw new UnsupportedOperationException();
}
@Override
public byte replaceByteField(PersistenceCapable pc, int idx) {
throw new UnsupportedOperationException();
}
@Override
public short replaceShortField(PersistenceCapable pc, int idx) {
throw new UnsupportedOperationException();
}
@Override
public int replaceIntField(PersistenceCapable pc, int idx) {
throw new UnsupportedOperationException();
}
@Override
public long replaceLongField(PersistenceCapable pc, int idx) {
throw new UnsupportedOperationException();
}
@Override
public float replaceFloatField(PersistenceCapable pc, int idx) {
throw new UnsupportedOperationException();
}
@Override
public double replaceDoubleField(PersistenceCapable pc, int idx) {
throw new UnsupportedOperationException();
}
@Override
public String replaceStringField(PersistenceCapable pc, int idx) {
throw new UnsupportedOperationException();
}
@Override
public Object replaceObjectField(PersistenceCapable pc, int idx) {
throw new UnsupportedOperationException();
}
@Override
public boolean isDelayed(int field) {
return false;
}
@Override
public void setDelayed(int field, boolean delay) {
throw new UnsupportedOperationException();
}
@Override
public void loadDelayedField(int field) {
throw new UnsupportedOperationException();
}
}
