org.teiid.query.sql.lang.Alter Maven / Gradle / Ivy
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* Copyright Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags and
* the COPYRIGHT.txt file distributed with this work.
*
* Licensed 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.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 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 getProjectedSymbols() {
return Command.getUpdateCommandSymbol();
}
public void cloneOnTo(Alter 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);
}
}