src/java/org/apache/commons/functor/core/composite/Conditional.java

/*
 * Copyright 2003,2004 The Apache Software Foundation.
 * 
 * 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.apache.commons.functor.core.composite;

import org.apache.commons.functor.BinaryFunction;
import org.apache.commons.functor.BinaryPredicate;
import org.apache.commons.functor.BinaryProcedure;
import org.apache.commons.functor.UnaryFunction;
import org.apache.commons.functor.UnaryPredicate;
import org.apache.commons.functor.UnaryProcedure;

/**
 * Utility methods for creating conditional functors.
 * @version $Revision$ $Date$
 * @author Rodney Waldhoff
 */
public final class Conditional {

    // constructor - for beanish apis
    // ------------------------------------------------------------------------
    public Conditional() { }
 
    // ------------------------------------------------------------------------

    public static final UnaryProcedure procedure(UnaryPredicate q, UnaryProcedure r, UnaryProcedure s) {        
        return new ConditionalUnaryProcedure(q,r,s);
    }

    public static final UnaryFunction function(UnaryPredicate q, UnaryFunction r, UnaryFunction s) {        
        return new ConditionalUnaryFunction(q,r,s);
    }

    public static final UnaryPredicate predicate(UnaryPredicate q, UnaryPredicate r, UnaryPredicate s) {        
        return new ConditionalUnaryPredicate(q,r,s);
    }

    public static final BinaryProcedure procedure(BinaryPredicate q, BinaryProcedure r, BinaryProcedure s) {        
        return new ConditionalBinaryProcedure(q,r,s);
    }

    public static final BinaryFunction function(BinaryPredicate q, BinaryFunction r, BinaryFunction s) {        
        return new ConditionalBinaryFunction(q,r,s);
    }

    public static final BinaryPredicate predicate(BinaryPredicate q, BinaryPredicate r, BinaryPredicate s) {        
        return new ConditionalBinaryPredicate(q,r,s);
    }


}