/**
* Copyright (C) 2015 Valkyrie RCP
*
* 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.valkyriercp.rules.constraint;
import java.util.Comparator;
/**
* Predicate that tests if one comparable object is greater than or equal to
* another.
*
* @author Keith Donald
*/
public class GreaterThanEqualTo extends ComparisonBinaryPredicate implements BinaryConstraint {
public static GreaterThanEqualTo INSTANCE = new GreaterThanEqualTo();
public static synchronized BinaryConstraint instance() {
return INSTANCE;
}
public static void load(GreaterThanEqualTo instance) {
INSTANCE = instance;
}
public static BinaryConstraint instance(Comparator c) {
return new GreaterThanEqualTo(c);
}
public static Constraint value(Comparable value) {
return INSTANCE.bind(instance(), value);
}
public static Constraint value(Object value, Comparator comparator) {
return INSTANCE.bind(instance(comparator), value);
}
public GreaterThanEqualTo() {
super();
}
public GreaterThanEqualTo(Comparator comparator) {
super(comparator);
}
protected boolean testCompareResult(int result) {
return result >= 0;
}
public String toString() {
return RelationalOperator.GREATER_THAN_EQUAL_TO.toString();
}
}