/*
* 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.value.basic;
import java.util.UUID;
import org.modeshape.common.annotation.Immutable;
import org.modeshape.common.text.TextEncoder;
import org.modeshape.jcr.value.Path;
import org.modeshape.jcr.value.Reference;
/**
* A {@link Reference} implementation that uses a single {@link UUID} as the pointer.
*/
@Immutable
public class StringReference implements Reference {
/**
*/
private static final long serialVersionUID = 2299467578161645109L;
private/*final*/String id;
private/*final*/boolean isWeak;
public StringReference( String id ) {
this.id = id;
this.isWeak = false;
}
public StringReference( String id,
boolean weak ) {
this.id = id;
this.isWeak = weak;
}
@Override
public boolean isWeak() {
return isWeak;
}
@Override
public boolean isSimple() {
return false;
}
@Override
public boolean isForeign() {
return false;
}
@Override
public String getString() {
return this.id;
}
@Override
public String getString( TextEncoder encoder ) {
if (encoder == null) encoder = Path.DEFAULT_ENCODER;
return encoder.encode(getString());
}
@Override
public int hashCode() {
return id.hashCode();
}
@Override
public int compareTo( Reference that ) {
if (this == that) return 0;
if (this.isWeak()) {
if (!that.isWeak()) return -1;
} else {
if (that.isWeak()) return 1;
}
if (that instanceof StringReference) {
return this.id.compareTo(((StringReference)that).getString());
}
return this.getString().compareTo(that.getString());
}
@Override
public boolean equals( Object obj ) {
if (obj == this) return true;
if (obj instanceof Reference) {
Reference that = (Reference)obj;
return this.isWeak() == that.isWeak() && this.getString().equals(that.getString());
}
return super.equals(obj);
}
@Override
public String toString() {
return this.id;
}
}