/*
* 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.common.util;
/**
* Common utility methods for general objects.
*/
public class ObjectUtil {
public static <Type> boolean isEqualNoNulls( Type reference1,
Type reference2 ) {
return reference1.equals(reference2);
}
public static <Type> boolean isEqualWithNulls( Type reference1,
Type reference2 ) {
return reference1 == null ? reference2 == null : reference1.equals(reference2);
}
@SuppressWarnings( {"unchecked", "rawtypes"} )
public static int compareNoNulls( Comparable reference1,
Comparable reference2 ) {
return reference1.compareTo(reference2);
}
@SuppressWarnings( {"unchecked", "rawtypes"} )
public static int compareWithNulls( Comparable reference1,
Comparable reference2 ) {
if (reference1 == null) return reference2 == null ? 0 : 1;
if (reference2 == null) return 1;
return reference1.compareTo(reference2);
}
private ObjectUtil() {
}
}