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package jedi.functors;

import jedi.functional.Functor0;

/**
 * A {@link Functor0} that returns a constant.
 */
public class ConstantFunctor0 implements Functor0 {
    
    private final R c;

    /**
     * A convenient factory to create a constant functor.
     * @param constant
     * @param 
     * @return a functor that will always return constant
     */
    public static  ConstantFunctor0 constant(R constant) {
        return new ConstantFunctor0(constant);
    }

    /**
     * @see #constant(Object)
     */
    public static  ConstantFunctor0 constantFunctor0(R constant) {
        return constant(constant);
    }

    public ConstantFunctor0(R constant) {
        this.c = constant;
    }

    public R execute() {
        return c;
    }
}