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package cdc.mf.transform;

import cdc.mf.model.MfAbstractElement;

/**
 * Interface used to fix an element.
 * 
 * A source element is transformed into a target element with the same type.
 *
 * @author Damien Carbonne
 *
 * @param  The element type.
 * @param  The element builder type.
 */
@FunctionalInterface
public interface MfElementFixer> {

    /**
     * Fix an element.
     *
     * @param srcElement The source element.
     * @param tgtBuilder The target element builder.
     */
    public void fix(E srcElement,
                    B tgtBuilder);

    /**
     * Returns a fixer that combines this one followed another one.
     *
     * @param after The other fixer, applied after this one.
     * @return A fixer that combines this one and {@code after}.
     */
    public default MfElementFixer andThen(MfElementFixer after) {
        return (srcElement,
                tgtBuilder) -> {
            this.fix(srcElement, tgtBuilder);
            after.fix(srcElement, tgtBuilder);
        };
    }

    /**
     * Returns a fixer that combines this one following another one.
     *
     * @param before The other fixer, applied before this one.
     * @return A fixer that combines {@code before} and this one.
     */
    public default MfElementFixer compose(MfElementFixer before) {
        return (srcElement,
                tgtBuilder) -> {
            before.fix(srcElement, tgtBuilder);
            this.fix(srcElement, tgtBuilder);
        };
    }
}