Application: gvSIG desktop

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package org.gvsig.fmap.dal.swing.impl.searchPostProcess.distinctOn;

/**

 *

 * @author jovivas

 */

public class LastAggregateOperation implements AggregateOperation {

    public static class LastAggregateOperationFactory implements AggregateOperationFactory{

        @Override

        public String getName() {

            return "Last value";

        }

        @Override

        public AggregateOperation create(Object... os) {

            return new LastAggregateOperation();

        }

        @Override

        public boolean isApplicable(Object... value) {

            return true;

        }

    }

    Object last;

    public LastAggregateOperation() {

        this.last = null;

    }

    @Override

    public boolean isApplicable(Object... value) {

        return true;

    }

    @Override

    public void reset() {

        this.last = null;

    }

    @Override

    public void perform(Object value) {

            this.last = value;

    }

    @Override

    public Object getValue() {

        return this.last;

    }

}