/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library 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 library 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.query.resolver.command;
import java.util.HashSet;
import java.util.Set;
import org.teiid.api.exception.query.QueryMetadataException;
import org.teiid.api.exception.query.QueryResolverException;
import org.teiid.core.TeiidComponentException;
import org.teiid.query.metadata.QueryMetadataInterface;
import org.teiid.query.metadata.TempMetadataAdapter;
import org.teiid.query.resolver.ProcedureContainerResolver;
import org.teiid.query.resolver.QueryResolver;
import org.teiid.query.resolver.util.ResolverVisitor;
import org.teiid.query.sql.lang.Command;
import org.teiid.query.sql.lang.Delete;
import org.teiid.query.sql.symbol.GroupSymbol;
/**
* This class knows how to expand and resolve DELETE commands.
*/
public class DeleteResolver extends ProcedureContainerResolver {
/**
* @see org.teiid.query.resolver.ProcedureContainerResolver#resolveProceduralCommand(org.teiid.query.sql.lang.Command, org.teiid.query.metadata.TempMetadataAdapter)
*/
public void resolveProceduralCommand(Command command, TempMetadataAdapter metadata)
throws QueryMetadataException, QueryResolverException, TeiidComponentException {
//Cast to known type
Delete delete = (Delete) command;
Set<GroupSymbol> groups = new HashSet<GroupSymbol>();
groups.add(delete.getGroup());
QueryResolver.resolveSubqueries(command, metadata, groups);
ResolverVisitor.resolveLanguageObject(delete, groups, delete.getExternalGroupContexts(), metadata);
}
/**
* @param metadata
* @param group
* @return
* @throws TeiidComponentException
* @throws QueryMetadataException
*/
protected String getPlan(QueryMetadataInterface metadata,
GroupSymbol group) throws TeiidComponentException,
QueryMetadataException {
return metadata.getDeletePlan(group.getMetadataID());
}
}