| /* |
| * 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.ofbiz.entity.condition; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.ofbiz.base.util.Debug; |
| import org.apache.ofbiz.entity.Delegator; |
| import org.apache.ofbiz.entity.GenericEntityException; |
| import org.apache.ofbiz.entity.GenericModelException; |
| import org.apache.ofbiz.entity.config.model.Datasource; |
| import org.apache.ofbiz.entity.jdbc.SqlJdbcUtil; |
| import org.apache.ofbiz.entity.model.ModelEntity; |
| import org.apache.ofbiz.entity.model.ModelField; |
| import org.apache.ofbiz.entity.model.ModelViewEntity; |
| |
| /** |
| * Sub-query action. |
| * |
| */ |
| @SuppressWarnings("serial") |
| public class EntityConditionSubSelect extends EntityConditionValue { |
| public static final String module = EntityConditionSubSelect.class.getName(); |
| |
| protected ModelEntity localModelEntity = null; |
| protected String keyFieldName = null; |
| protected EntityCondition whereCond = null; |
| protected Boolean requireAll = null; |
| |
| protected EntityConditionSubSelect() { } |
| |
| public EntityConditionSubSelect(String entityName, String keyFieldName, EntityCondition whereCond, boolean requireAll, Delegator delegator) { |
| this(delegator.getModelEntity(entityName), keyFieldName, whereCond, requireAll); |
| } |
| public EntityConditionSubSelect(ModelEntity localModelEntity, String keyFieldName, EntityCondition whereCond, boolean requireAll) { |
| this.localModelEntity = localModelEntity; |
| this.keyFieldName = keyFieldName; |
| this.whereCond = whereCond; |
| this.requireAll = requireAll; |
| } |
| |
| @Override |
| public void addSqlValue(StringBuilder sql, Map<String, String> tableAliases, ModelEntity parentModelEntity, List<EntityConditionParam> entityConditionParams, |
| boolean includeTableNamePrefix, Datasource datasourceInfo) { |
| if (localModelEntity instanceof ModelViewEntity && datasourceInfo == null) { |
| throw new IllegalArgumentException("Call to EntityConditionSubSelect.addSqlValue with datasourceInfo=null which is not allowed because the local entity [" + this.localModelEntity.getEntityName() + "] is a view entity"); |
| } |
| try { |
| // add select and where and such, based on local entity not on the main entity |
| ModelField localModelField = localModelEntity.getField(this.keyFieldName); |
| |
| if (this.requireAll) { |
| sql.append(" ALL("); |
| } else { |
| sql.append(" ANY("); |
| } |
| sql.append("SELECT "); |
| |
| sql.append(localModelField.getColName()); |
| |
| // FROM clause and when necessary the JOIN or LEFT JOIN clause(s) as well |
| sql.append(SqlJdbcUtil.makeFromClause(localModelEntity, null, datasourceInfo)); |
| |
| // WHERE clause |
| StringBuilder whereString = new StringBuilder(); |
| String entityCondWhereString = ""; |
| if (this.whereCond != null) { |
| entityCondWhereString = this.whereCond.makeWhereString(localModelEntity, entityConditionParams, datasourceInfo); |
| } |
| |
| String viewClause = SqlJdbcUtil.makeViewWhereClause(localModelEntity, (datasourceInfo != null ? datasourceInfo.getJoinStyle() : null)); |
| if (viewClause.length() > 0) { |
| if (entityCondWhereString.length() > 0) { |
| whereString.append("("); |
| whereString.append(entityCondWhereString); |
| whereString.append(") AND "); |
| } |
| |
| whereString.append(viewClause); |
| } else { |
| whereString.append(entityCondWhereString); |
| } |
| |
| if (whereString.length() > 0) { |
| sql.append(" WHERE "); |
| sql.append(whereString.toString()); |
| } |
| |
| sql.append(")"); |
| } catch (GenericEntityException e) { |
| String errMsg = "Could not generate sub-select SQL: " + e.toString(); |
| Debug.logError(e, errMsg, module); |
| |
| } |
| } |
| |
| |
| @Override |
| public EntityConditionValue freeze() { |
| return new EntityConditionSubSelect(localModelEntity, keyFieldName, (whereCond != null ? whereCond.freeze() : null), requireAll); |
| } |
| |
| public String getKeyFieldName() { |
| return this.keyFieldName; |
| } |
| |
| public ModelEntity getModelEntity() { |
| return this.localModelEntity; |
| } |
| |
| @Override |
| public ModelField getModelField(ModelEntity modelEntity) { |
| // do nothing for now |
| return null; |
| } |
| |
| @Override |
| public void setModelField(ModelField modelEntity) { |
| // do nothing for now |
| } |
| |
| @Override |
| public Comparable<?> getValue(Delegator delegator, Map<String, ? extends Object> map) { |
| // do nothing for now |
| return null; |
| } |
| |
| @Override |
| public void validateSql(ModelEntity modelEntity) throws GenericModelException { |
| // do nothing for now |
| } |
| |
| @Override |
| public void visit(EntityConditionVisitor visitor) { |
| if (whereCond != null) whereCond.visit(visitor); |
| } |
| } |