| /******************************************************************************* |
| * 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.ofbiz.entity.condition; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.ofbiz.base.util.UtilValidate; |
| import org.ofbiz.entity.Delegator; |
| import org.ofbiz.entity.GenericEntity; |
| import org.ofbiz.entity.GenericModelException; |
| import org.ofbiz.entity.config.model.Datasource; |
| import org.ofbiz.entity.model.ModelEntity; |
| |
| /** |
| * Join operator (AND/OR). |
| * |
| */ |
| @SuppressWarnings("serial") |
| public class EntityJoinOperator extends EntityOperator<EntityCondition, EntityCondition, Boolean> { |
| |
| protected boolean shortCircuitValue; |
| |
| protected EntityJoinOperator(int id, String code, boolean shortCircuitValue) { |
| super(id, code); |
| this.shortCircuitValue = shortCircuitValue; |
| } |
| |
| @Override |
| public void addSqlValue(StringBuilder sql, ModelEntity modelEntity, List<EntityConditionParam> entityConditionParams, boolean compat, EntityCondition lhs, EntityCondition rhs, Datasource datasourceInfo) { |
| List<EntityCondition> conditions = new LinkedList<EntityCondition>(); |
| conditions.add(lhs); |
| conditions.add(rhs); |
| addSqlValue(sql, modelEntity, entityConditionParams, conditions, datasourceInfo); |
| } |
| |
| public void addSqlValue(StringBuilder sql, ModelEntity modelEntity, List<EntityConditionParam> entityConditionParams, List<? extends EntityCondition> conditionList, Datasource datasourceInfo) { |
| if (UtilValidate.isNotEmpty(conditionList)) { |
| boolean hadSomething = false; |
| Iterator<? extends EntityCondition> conditionIter = conditionList.iterator(); |
| while (conditionIter.hasNext()) { |
| EntityCondition condition = conditionIter.next(); |
| if (condition.isEmpty()) { |
| continue; |
| } |
| if (hadSomething) { |
| sql.append(' '); |
| sql.append(getCode()); |
| sql.append(' '); |
| } else { |
| hadSomething = true; |
| sql.append('('); |
| } |
| sql.append(condition.makeWhereString(modelEntity, entityConditionParams, datasourceInfo)); |
| } |
| if (hadSomething) { |
| sql.append(')'); |
| } |
| } |
| } |
| |
| protected EntityCondition freeze(Object item) { |
| return ((EntityCondition) item).freeze(); |
| } |
| |
| @Override |
| public EntityCondition freeze(EntityCondition lhs, EntityCondition rhs) { |
| return EntityCondition.makeCondition(freeze(lhs), this, freeze(rhs)); |
| } |
| |
| public EntityCondition freeze(List<? extends EntityCondition> conditionList) { |
| List<EntityCondition> newList = new ArrayList<EntityCondition>(conditionList.size()); |
| for (EntityCondition condition: conditionList) { |
| newList.add(condition.freeze()); |
| } |
| return EntityCondition.makeCondition(newList, this); |
| } |
| |
| public void visit(EntityConditionVisitor visitor, List<? extends EntityCondition> conditionList) { |
| if (UtilValidate.isNotEmpty(conditionList)) { |
| for (EntityCondition condition: conditionList) { |
| visitor.visit(condition); |
| } |
| } |
| } |
| |
| @Override |
| public void visit(EntityConditionVisitor visitor, EntityCondition lhs, EntityCondition rhs) { |
| lhs.visit(visitor); |
| visitor.visit(rhs); |
| } |
| |
| public Boolean eval(GenericEntity entity, EntityCondition lhs, EntityCondition rhs) { |
| return entityMatches(entity, lhs, rhs) ? Boolean.TRUE : Boolean.FALSE; |
| } |
| |
| @Override |
| public boolean isEmpty(EntityCondition lhs, EntityCondition rhs) { |
| return lhs.isEmpty() && rhs.isEmpty(); |
| } |
| |
| public boolean isEmpty(List<? extends EntityCondition> conditionList) { |
| for (EntityCondition condition: conditionList) { |
| if (!condition.isEmpty()) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| @Override |
| public boolean entityMatches(GenericEntity entity, EntityCondition lhs, EntityCondition rhs) { |
| if (lhs.entityMatches(entity) == shortCircuitValue) return shortCircuitValue; |
| if (rhs.entityMatches(entity) == shortCircuitValue) return shortCircuitValue; |
| return !shortCircuitValue; |
| } |
| |
| public boolean entityMatches(GenericEntity entity, List<? extends EntityCondition> conditionList) { |
| return mapMatches(entity.getDelegator(), entity, conditionList); |
| } |
| |
| public Boolean eval(Delegator delegator, Map<String, ? extends Object> map, EntityCondition lhs, EntityCondition rhs) { |
| return castBoolean(mapMatches(delegator, map, lhs, rhs)); |
| } |
| |
| @Override |
| public boolean mapMatches(Delegator delegator, Map<String, ? extends Object> map, EntityCondition lhs, EntityCondition rhs) { |
| if (lhs.mapMatches(delegator, map) == shortCircuitValue) return shortCircuitValue; |
| if (rhs.mapMatches(delegator, map) == shortCircuitValue) return shortCircuitValue; |
| return !shortCircuitValue; |
| } |
| |
| public Boolean eval(Delegator delegator, Map<String, ? extends Object> map, List<? extends EntityCondition> conditionList) { |
| return castBoolean(mapMatches(delegator, map, conditionList)); |
| } |
| |
| public boolean mapMatches(Delegator delegator, Map<String, ? extends Object> map, List<? extends EntityCondition> conditionList) { |
| if (UtilValidate.isNotEmpty(conditionList)) { |
| for (EntityCondition condition: conditionList) { |
| if (condition.mapMatches(delegator, map) == shortCircuitValue) return shortCircuitValue; |
| } |
| } |
| return !shortCircuitValue; |
| } |
| |
| @Override |
| public void validateSql(ModelEntity modelEntity, EntityCondition lhs, EntityCondition rhs) throws GenericModelException { |
| lhs.checkCondition(modelEntity); |
| rhs.checkCondition(modelEntity); |
| } |
| |
| public void validateSql(ModelEntity modelEntity, List<? extends EntityCondition> conditionList) throws GenericModelException { |
| if (conditionList == null) { |
| throw new GenericModelException("Condition list is null"); |
| } |
| for (EntityCondition condition: conditionList) { |
| condition.checkCondition(modelEntity); |
| } |
| } |
| } |