/* * JBoss, Home of Professional Open Source. * Copyright 2008, Red Hat Middleware LLC, and individual contributors * as indicated by the @author tags. See the copyright.txt file in the * distribution for a full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package org.jboss.ejb.plugins.cmp.jdbc; import org.jboss.deployment.DeploymentException; import org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCEntityBridge; import org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMPFieldBridge; import org.jboss.ejb.plugins.cmp.jdbc.metadata.JDBCJBossQLQueryMetaData; import org.jboss.ejb.plugins.cmp.jdbc.metadata.JDBCQueryMetaData; import org.jboss.ejb.plugins.cmp.jdbc.metadata.JDBCReadAheadMetaData; /** * This class generates a query from JBoss-QL. * * @author <a href="mailto:dain@daingroup.com">Dain Sundstrom</a> * @author <a href="mailto:alex@jboss.org">Alex Loubyansky</a> * @version $Revision: 81030 $ */ public final class JDBCJBossQLQuery extends JDBCAbstractQueryCommand { public JDBCJBossQLQuery(JDBCStoreManager manager, JDBCQueryMetaData q) throws DeploymentException { super(manager, q); JDBCJBossQLQueryMetaData metadata = (JDBCJBossQLQueryMetaData)q; if(getLog().isDebugEnabled()) { getLog().debug("JBossQL: " + metadata.getJBossQL()); } QLCompiler compiler = JDBCQueryManager.getInstance(metadata.getQLCompilerClass(), manager.getCatalog()); try { compiler.compileJBossQL( metadata.getJBossQL(), metadata.getMethod().getReturnType(), metadata.getMethod().getParameterTypes(), metadata); } catch(Throwable t) { t.printStackTrace(); throw new DeploymentException("Error compiling JBossQL " + "statement '" + metadata.getJBossQL() + "'", t); } setSQL(compiler.getSQL()); setOffsetParam(compiler.getOffsetParam()); setOffsetValue(compiler.getOffsetValue()); setLimitParam(compiler.getLimitParam()); setLimitValue(compiler.getLimitValue()); // set select object if(compiler.isSelectEntity()) { JDBCEntityBridge selectEntity = (JDBCEntityBridge) compiler.getSelectEntity(); // set the select entity setSelectEntity(selectEntity); // set the preload fields JDBCReadAheadMetaData readahead = metadata.getReadAhead(); if(readahead.isOnFind()) { setEagerLoadGroup(readahead.getEagerLoadGroup()); setOnFindCMRList(compiler.getLeftJoinCMRList()); // exclude non-searchable columns if distinct is used if(compiler.isSelectDistinct()) { boolean[] mask = getEagerLoadMask(); JDBCCMPFieldBridge[] tableFields = (JDBCCMPFieldBridge[])selectEntity.getTableFields(); for(int i = 0; i < tableFields.length; ++i) { if(mask[i] && !tableFields[i].getJDBCType().isSearchable()) { mask[i] = false; } } } } } else if(compiler.isSelectField()) { setSelectField((JDBCCMPFieldBridge) compiler.getSelectField()); } else { setSelectFunction(compiler.getSelectFunction(), (JDBCStoreManager) compiler.getStoreManager()); } // get the parameter order setParameterList(compiler.getInputParameters()); } }