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com.blazebit.persistence.impl.SubqueryInitiatorImpl Maven / Gradle / Ivy
/*
* Copyright 2014 - 2020 Blazebit.
*
* Licensed 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 com.blazebit.persistence.impl;
import com.blazebit.persistence.BaseFromQueryBuilder;
import com.blazebit.persistence.CommonQueryBuilder;
import com.blazebit.persistence.FullSelectCTECriteriaBuilder;
import com.blazebit.persistence.LeafOngoingFinalSetOperationSubqueryBuilder;
import com.blazebit.persistence.StartOngoingSetOperationSubqueryBuilder;
import com.blazebit.persistence.SubqueryBuilder;
import com.blazebit.persistence.SubqueryInitiator;
import com.blazebit.persistence.parser.expression.ExpressionCopyContext;
import com.blazebit.persistence.parser.expression.ExpressionFactory;
import javax.persistence.metamodel.EntityType;
import java.util.Arrays;
import java.util.Collection;
/**
*
* @author Moritz Becker
* @author Christian Beikov
* @since 1.0.0
*/
public class SubqueryInitiatorImpl implements SubqueryInitiator {
private final MainQuery mainQuery;
private final AliasManager aliasManager;
private final JoinManager parentJoinManager;
private final ExpressionFactory expressionFactory;
private final X result;
private final SubqueryBuilderListener listener;
private final boolean inExists;
private final QueryContext queryContext;
public SubqueryInitiatorImpl(MainQuery mainQuery, QueryContext queryContext, AliasManager aliasManager, JoinManager parentJoinManager, X result, SubqueryBuilderListener listener, boolean inExists) {
this.mainQuery = mainQuery;
this.aliasManager = aliasManager;
this.parentJoinManager = parentJoinManager;
this.expressionFactory = mainQuery.subqueryExpressionFactory;
this.result = result;
this.listener = listener;
this.inExists = inExists;
this.queryContext = queryContext;
}
@Override
public CommonQueryBuilder getParentQueryBuilder() {
return (CommonQueryBuilder) queryContext.getParent();
}
@Override
public SubqueryBuilder from(Class clazz) {
return from(clazz, null);
}
@Override
public SubqueryBuilder from(Class clazz, String alias) {
return from(clazz, alias, false);
}
public SubqueryBuilder from(Class clazz, String alias, boolean endResultAsJoinOnBuilder) {
SubqueryBuilderImpl subqueryBuilder = new SubqueryBuilderImpl(mainQuery, queryContext, aliasManager, parentJoinManager, mainQuery.subqueryExpressionFactory, result, endResultAsJoinOnBuilder, listener);
if (inExists) {
subqueryBuilder.selectManager.setDefaultSelect(null, Arrays.asList(new SelectInfo(expressionFactory.createSimpleExpression("1"))), ExpressionCopyContext.EMPTY);
}
subqueryBuilder.from(clazz, alias);
listener.onBuilderStarted(subqueryBuilder);
return subqueryBuilder;
}
@Override
public SubqueryBuilder from(EntityType entityType) {
return from(entityType, null);
}
@Override
public SubqueryBuilder from(EntityType entityType, String alias) {
return from(entityType, alias, false);
}
public SubqueryBuilder from(EntityType entityType, String alias, boolean endResultAsJoinOnBuilder) {
SubqueryBuilderImpl subqueryBuilder = new SubqueryBuilderImpl(mainQuery, queryContext, aliasManager, parentJoinManager, mainQuery.subqueryExpressionFactory, result, endResultAsJoinOnBuilder, listener);
if (inExists) {
subqueryBuilder.selectManager.setDefaultSelect(null, Arrays.asList(new SelectInfo(expressionFactory.createSimpleExpression("1"))), ExpressionCopyContext.EMPTY);
}
subqueryBuilder.from(entityType, alias);
listener.onBuilderStarted(subqueryBuilder);
return subqueryBuilder;
}
@Override
public SubqueryBuilder from(String correlationPath) {
return from(correlationPath, null);
}
@Override
public SubqueryBuilder from(String correlationPath, String alias) {
return from(correlationPath, alias, false);
}
public SubqueryBuilder from(String correlationPath, String alias, boolean endResultAsJoinOnBuilder) {
SubqueryBuilderImpl subqueryBuilder = new SubqueryBuilderImpl(mainQuery, queryContext, aliasManager, parentJoinManager, mainQuery.subqueryExpressionFactory, result, endResultAsJoinOnBuilder, listener);
if (inExists) {
subqueryBuilder.selectManager.setDefaultSelect(null, Arrays.asList(new SelectInfo(expressionFactory.createSimpleExpression("1"))), ExpressionCopyContext.EMPTY);
}
subqueryBuilder.from(correlationPath, alias);
listener.onBuilderStarted(subqueryBuilder);
return subqueryBuilder;
}
@Override
public StartOngoingSetOperationSubqueryBuilder> startSet() {
FinalSetOperationSubqueryBuilderImpl parentFinalSetOperationBuilder = new FinalSetOperationSubqueryBuilderImpl(mainQuery, queryContext, result, false, null, false, listener, null);
OngoingFinalSetOperationSubqueryBuilderImpl subFinalSetOperationBuilder = new OngoingFinalSetOperationSubqueryBuilderImpl(mainQuery, queryContext, null, false, null, true, parentFinalSetOperationBuilder.getSubListener(), null);
listener.onBuilderStarted(parentFinalSetOperationBuilder);
LeafOngoingSetOperationSubqueryBuilderImpl leafCb = new LeafOngoingSetOperationSubqueryBuilderImpl(mainQuery, queryContext, aliasManager, parentJoinManager, expressionFactory, result, parentFinalSetOperationBuilder.getSubListener(), parentFinalSetOperationBuilder);
StartOngoingSetOperationSubqueryBuilderImpl> cb = new StartOngoingSetOperationSubqueryBuilderImpl>(
mainQuery, queryContext, aliasManager, parentJoinManager, expressionFactory, result, subFinalSetOperationBuilder.getSubListener(), subFinalSetOperationBuilder, leafCb
);
subFinalSetOperationBuilder.setOperationManager.setStartQueryBuilder(cb);
parentFinalSetOperationBuilder.setOperationManager.setStartQueryBuilder(subFinalSetOperationBuilder);
subFinalSetOperationBuilder.getSubListener().onBuilderStarted(cb);
parentFinalSetOperationBuilder.getSubListener().onBuilderStarted(leafCb);
return cb;
}
@Override
public SubqueryBuilder fromOld(Class entityClass) {
return fromOld(entityClass, null);
}
@Override
public SubqueryBuilder fromOld(Class entityClass, String alias) {
SubqueryBuilderImpl subqueryBuilder = new SubqueryBuilderImpl(mainQuery, queryContext, aliasManager, parentJoinManager, mainQuery.subqueryExpressionFactory, result, false, listener);
if (inExists) {
subqueryBuilder.selectManager.setDefaultSelect(null, Arrays.asList(new SelectInfo(expressionFactory.createSimpleExpression("1"))), ExpressionCopyContext.EMPTY);
}
subqueryBuilder.fromOld(entityClass, alias);
listener.onBuilderStarted(subqueryBuilder);
return subqueryBuilder;
}
@Override
public SubqueryBuilder fromNew(Class entityClass) {
return fromNew(entityClass, null);
}
@Override
public SubqueryBuilder fromNew(Class entityClass, String alias) {
SubqueryBuilderImpl subqueryBuilder = new SubqueryBuilderImpl(mainQuery, queryContext, aliasManager, parentJoinManager, mainQuery.subqueryExpressionFactory, result, false, listener);
if (inExists) {
subqueryBuilder.selectManager.setDefaultSelect(null, Arrays.asList(new SelectInfo(expressionFactory.createSimpleExpression("1"))), ExpressionCopyContext.EMPTY);
}
subqueryBuilder.fromNew(entityClass, alias);
listener.onBuilderStarted(subqueryBuilder);
return subqueryBuilder;
}
@Override
public SubqueryBuilder fromValues(Class valueClass, String alias, int valueCount) {
SubqueryBuilderImpl subqueryBuilder = new SubqueryBuilderImpl(mainQuery, queryContext, aliasManager, parentJoinManager, mainQuery.subqueryExpressionFactory, result, false, listener);
if (inExists) {
subqueryBuilder.selectManager.setDefaultSelect(null, Arrays.asList(new SelectInfo(expressionFactory.createSimpleExpression("1"))), ExpressionCopyContext.EMPTY);
}
subqueryBuilder.fromValues(valueClass, alias, valueCount);
listener.onBuilderStarted(subqueryBuilder);
return subqueryBuilder;
}
@Override
public SubqueryBuilder fromValues(Class entityBaseClass, String attributeName, String alias, int valueCount) {
SubqueryBuilderImpl subqueryBuilder = new SubqueryBuilderImpl(mainQuery, queryContext, aliasManager, parentJoinManager, mainQuery.subqueryExpressionFactory, result, false, listener);
if (inExists) {
subqueryBuilder.selectManager.setDefaultSelect(null, Arrays.asList(new SelectInfo(expressionFactory.createSimpleExpression("1"))), ExpressionCopyContext.EMPTY);
}
subqueryBuilder.fromValues(entityBaseClass, attributeName, alias, valueCount);
listener.onBuilderStarted(subqueryBuilder);
return subqueryBuilder;
}
@Override
public SubqueryBuilder fromIdentifiableValues(Class valueClass, String alias, int valueCount) {
SubqueryBuilderImpl subqueryBuilder = new SubqueryBuilderImpl(mainQuery, queryContext, aliasManager, parentJoinManager, mainQuery.subqueryExpressionFactory, result, false, listener);
if (inExists) {
subqueryBuilder.selectManager.setDefaultSelect(null, Arrays.asList(new SelectInfo(expressionFactory.createSimpleExpression("1"))), ExpressionCopyContext.EMPTY);
}
subqueryBuilder.fromIdentifiableValues(valueClass, alias, valueCount);
listener.onBuilderStarted(subqueryBuilder);
return subqueryBuilder;
}
@Override
public SubqueryBuilder fromIdentifiableValues(Class valueClass, String identifierAttribute, String alias, int valueCount) {
SubqueryBuilderImpl subqueryBuilder = new SubqueryBuilderImpl(mainQuery, queryContext, aliasManager, parentJoinManager, mainQuery.subqueryExpressionFactory, result, false, listener);
if (inExists) {
subqueryBuilder.selectManager.setDefaultSelect(null, Arrays.asList(new SelectInfo(expressionFactory.createSimpleExpression("1"))), ExpressionCopyContext.EMPTY);
}
subqueryBuilder.fromIdentifiableValues(valueClass, identifierAttribute, alias, valueCount);
listener.onBuilderStarted(subqueryBuilder);
return subqueryBuilder;
}
@Override
public SubqueryBuilder fromValues(Class valueClass, String alias, Collection values) {
SubqueryBuilder builder = fromValues(valueClass, alias, values.size());
builder.setParameter(alias, values);
return builder;
}
@Override
public SubqueryBuilder fromValues(Class entityBaseClass, String attributeName, String alias, Collection values) {
SubqueryBuilder builder = fromValues(entityBaseClass, attributeName, alias, values.size());
builder.setParameter(alias, values);
return builder;
}
@Override
public SubqueryBuilder fromIdentifiableValues(Class valueClass, String alias, Collection values) {
SubqueryBuilder builder = fromIdentifiableValues(valueClass, alias, values.size());
builder.setParameter(alias, values);
return builder;
}
@Override
public SubqueryBuilder fromIdentifiableValues(Class valueClass, String identifierAttribute, String alias, Collection values) {
SubqueryBuilder builder = fromIdentifiableValues(valueClass, identifierAttribute, alias, values.size());
builder.setParameter(alias, values);
return builder;
}
@Override
public FullSelectCTECriteriaBuilder> fromSubquery(Class cteClass) {
SubqueryBuilderImpl subqueryBuilder = new SubqueryBuilderImpl(mainQuery, queryContext, aliasManager, parentJoinManager, mainQuery.subqueryExpressionFactory, result, false, listener);
listener.onBuilderStarted(subqueryBuilder);
return subqueryBuilder.fromSubquery(cteClass);
}
@Override
public FullSelectCTECriteriaBuilder> fromSubquery(Class cteClass, String alias) {
SubqueryBuilderImpl subqueryBuilder = new SubqueryBuilderImpl(mainQuery, queryContext, aliasManager, parentJoinManager, mainQuery.subqueryExpressionFactory, result, false, listener);
listener.onBuilderStarted(subqueryBuilder);
return subqueryBuilder.fromSubquery(cteClass, alias);
}
@Override
public , ? extends Z>> Z fromEntitySubquery(Class cteClass) {
SubqueryBuilderImpl subqueryBuilder = new SubqueryBuilderImpl(mainQuery, queryContext, aliasManager, parentJoinManager, mainQuery.subqueryExpressionFactory, result, false, listener);
listener.onBuilderStarted(subqueryBuilder);
return (Z) subqueryBuilder.fromEntitySubquery(cteClass);
}
@Override
public , ? extends Z>> Z fromEntitySubquery(Class cteClass, String alias) {
SubqueryBuilderImpl subqueryBuilder = new SubqueryBuilderImpl(mainQuery, queryContext, aliasManager, parentJoinManager, mainQuery.subqueryExpressionFactory, result, false, listener);
listener.onBuilderStarted(subqueryBuilder);
return (Z) subqueryBuilder.fromEntitySubquery(cteClass, alias);
}
@Override
public , ? extends Z>> Z fromEntitySubquery(Class cteClass, String alias, String subqueryAlias) {
SubqueryBuilderImpl subqueryBuilder = new SubqueryBuilderImpl(mainQuery, queryContext, aliasManager, parentJoinManager, mainQuery.subqueryExpressionFactory, result, false, listener);
listener.onBuilderStarted(subqueryBuilder);
return (Z) subqueryBuilder.fromEntitySubquery(cteClass, alias, subqueryAlias);
}
}