org.modeshape.jcr.query.model.AllNodes Maven / Gradle / Ivy
/*
* ModeShape (http://www.modeshape.org)
*
* 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.modeshape.jcr.query.model;
import org.modeshape.common.annotation.Immutable;
import org.modeshape.common.util.ObjectUtil;
/**
* A selector that represents a source that returns all nodes.
*/
@Immutable
public class AllNodes extends Selector {
private static final long serialVersionUID = 1L;
public static final SelectorName ALL_NODES_NAME = new SelectorName("__ALLNODES__");
public AllNodes() {
super(ALL_NODES_NAME);
}
/**
* Create a selector with the supplied alias.
*
* @param alias the alias for this selector; may be null
*/
public AllNodes( SelectorName alias ) {
super(ALL_NODES_NAME, alias);
}
@Override
public String toString() {
return Visitors.readable(this);
}
@Override
public int hashCode() {
return name().hashCode();
}
@Override
public boolean equals( Object obj ) {
if (obj == this) return true;
if (obj instanceof Selector) {
Selector that = (Selector)obj;
return ObjectUtil.isEqualWithNulls(this.name(), that.name())
&& ObjectUtil.isEqualWithNulls(this.alias(), that.alias());
}
return false;
}
@Override
public void accept( Visitor visitor ) {
visitor.visit(this);
}
}
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