/*
* 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.sql.lang;
import java.util.List;
import org.teiid.core.util.EquivalenceUtil;
import org.teiid.core.util.HashCodeUtil;
import org.teiid.query.sql.symbol.Expression;
import org.teiid.query.sql.symbol.GroupSymbol;
public abstract class Alter<T extends Command> extends Command {
private GroupSymbol target;
private T definition;
public GroupSymbol getTarget() {
return target;
}
public void setTarget(GroupSymbol target) {
this.target = target;
}
public T getDefinition() {
return definition;
}
public void setDefinition(T definition) {
this.definition = definition;
}
@Override
public boolean areResultsCachable() {
return false;
}
@Override
public List<Expression> getProjectedSymbols() {
return Command.getUpdateCommandSymbol();
}
public void cloneOnTo(Alter<T> clone) {
copyMetadataState(clone);
if (this.definition != null) {
clone.setDefinition((T)this.definition.clone());
}
clone.setTarget(getTarget().clone());
}
@Override
public int hashCode() {
return HashCodeUtil.hashCode(this.target.hashCode(), this.definition);
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj.getClass() != this.getClass()) {
return false;
}
Alter<?> other = (Alter<?>)obj;
return EquivalenceUtil.areEqual(this.target, other.target)
&& EquivalenceUtil.areEqual(this.definition, other.definition);
}
}