| /* |
| * 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.util.Map; |
| |
| import org.apache.openjpa.datacache.DataCache; |
| import org.apache.openjpa.kernel.exps.AggregateListener; |
| import org.apache.openjpa.kernel.exps.FilterListener; |
| import org.apache.openjpa.kernel.exps.QueryExpressions; |
| import org.apache.openjpa.kernel.exps.Value; |
| import org.apache.openjpa.lib.util.OrderedMap; |
| import org.apache.openjpa.lib.util.collections.LinkedMap; |
| import org.apache.openjpa.meta.ClassMetaData; |
| import org.apache.openjpa.meta.FieldMetaData; |
| import org.apache.openjpa.util.InternalException; |
| import org.apache.openjpa.util.UnsupportedException; |
| |
| /** |
| * Abstract {@link StoreQuery} that implements most methods as no-ops. |
| * |
| * @author Abe White |
| * @since 0.4.0 |
| */ |
| public abstract class AbstractStoreQuery implements StoreQuery { |
| private static final long serialVersionUID = 1L; |
| protected QueryContext ctx = null; |
| |
| @Override |
| public QueryContext getContext() { |
| return ctx; |
| } |
| |
| @Override |
| public void setContext(QueryContext ctx) { |
| this.ctx = ctx; |
| } |
| |
| @Override |
| public boolean setQuery(Object query) { |
| return false; |
| } |
| |
| @Override |
| public FilterListener getFilterListener(String tag) { |
| return null; |
| } |
| |
| @Override |
| public AggregateListener getAggregateListener(String tag) { |
| return null; |
| } |
| |
| @Override |
| public Object newCompilationKey() { |
| return null; |
| } |
| |
| @Override |
| public Object newCompilation() { |
| return null; |
| } |
| |
| @Override |
| public Object getCompilation() { |
| return null; |
| } |
| |
| @Override |
| public void populateFromCompilation(Object comp) { |
| } |
| |
| @Override |
| public void invalidateCompilation() { |
| } |
| |
| @Override |
| public boolean supportsDataStoreExecution() { |
| return false; |
| } |
| |
| @Override |
| public boolean supportsInMemoryExecution() { |
| return false; |
| } |
| |
| @Override |
| public Executor newInMemoryExecutor(ClassMetaData meta, boolean subs) { |
| throw new InternalException(); |
| } |
| |
| @Override |
| public Executor newDataStoreExecutor(ClassMetaData meta, boolean subs) { |
| throw new InternalException(); |
| } |
| |
| @Override |
| public boolean supportsAbstractExecutors() { |
| return false; |
| } |
| |
| @Override |
| public boolean requiresCandidateType() { |
| return true; |
| } |
| |
| @Override |
| public boolean requiresParameterDeclarations() { |
| return true; |
| } |
| |
| @Override |
| public boolean supportsParameterDeclarations() { |
| return true; |
| } |
| |
| @Override |
| public Object evaluate(Object value, Object ob, Object[] params, |
| OpenJPAStateManager sm) { |
| throw new UnsupportedException(); |
| } |
| |
| /** |
| * Abstract {@link Executor} that implements most methods as no-ops. |
| */ |
| public static abstract class AbstractExecutor |
| implements Executor { |
| |
| @Override |
| public Number executeDelete(StoreQuery q, Object[] params) { |
| try { |
| return q.getContext().deleteInMemory(q, this, params); |
| } finally { |
| for (ClassMetaData cmd : getAccessPathMetaDatas(q)) { |
| DataCache cache = cmd.getDataCache(); |
| if (cache != null && cache.getEvictOnBulkUpdate()) { |
| cache.removeAll(cmd.getDescribedType(), true); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public Number executeUpdate(StoreQuery q, Object[] params) { |
| try { |
| return q.getContext().updateInMemory(q, this, params); |
| } finally { |
| for (ClassMetaData cmd : getAccessPathMetaDatas(q)) { |
| DataCache cache = cmd.getDataCache(); |
| if (cache != null && cache.getEvictOnBulkUpdate()) { |
| cache.removeAll(cmd.getDescribedType(), true); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public String[] getDataStoreActions(StoreQuery q, Object[] params, |
| Range range) { |
| return EMPTY_STRINGS; |
| } |
| |
| @Override |
| public void validate(StoreQuery q) { |
| } |
| |
| |
| @Override |
| public QueryExpressions[] getQueryExpressions() { |
| return null; |
| } |
| |
| @Override |
| public ResultShape<?> getResultShape(StoreQuery q) { |
| return null; |
| } |
| |
| @Override |
| public void getRange(StoreQuery q, Object[] params, Range range) { |
| } |
| |
| @Override |
| public Object getOrderingValue(StoreQuery q, Object[] params, |
| Object resultObject, int orderIndex) { |
| return null; |
| } |
| |
| @Override |
| public boolean[] getAscending(StoreQuery q) { |
| return EMPTY_BOOLEANS; |
| } |
| |
| @Override |
| public boolean isPacking(StoreQuery q) { |
| return false; |
| } |
| |
| @Override |
| public String getAlias(StoreQuery q) { |
| return null; |
| } |
| |
| @Override |
| public String[] getProjectionAliases(StoreQuery q) { |
| return EMPTY_STRINGS; |
| } |
| |
| @Override |
| public Class<?>[] getProjectionTypes(StoreQuery q) { |
| return EMPTY_CLASSES; |
| } |
| |
| @Override |
| public ClassMetaData[] getAccessPathMetaDatas(StoreQuery q) { |
| return EMPTY_METAS; |
| } |
| |
| @Override |
| public int getOperation(StoreQuery q) { |
| return OP_SELECT; |
| } |
| |
| @Override |
| public boolean isAggregate(StoreQuery q) { |
| return false; |
| } |
| |
| @Override |
| public boolean isDistinct(StoreQuery q) { |
| return false; |
| } |
| |
| @Override |
| public boolean hasGrouping(StoreQuery q) { |
| return false; |
| } |
| |
| @Override |
| public OrderedMap<Object,Class<?>> getOrderedParameterTypes(StoreQuery q) { |
| return EMPTY_ORDERED_PARAMS; |
| } |
| |
| @Override |
| public LinkedMap getParameterTypes(StoreQuery q) { |
| LinkedMap result = new LinkedMap(); |
| result.putAll(getOrderedParameterTypes(q)); |
| return result; |
| } |
| |
| @Override |
| public Class<?> getResultClass(StoreQuery q) { |
| return null; |
| } |
| |
| @Override |
| public Map<FieldMetaData,Value> getUpdates(StoreQuery q) { |
| return null; |
| } |
| } |
| } |