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/* 
 Copyright (C) GridGain Systems. All Rights Reserved.
 
 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.gridgain.client.impl;

import org.gridgain.client.*;

/**
 * AND predicate. Passes if and only if both provided filters accept the node.
 * This filter uses short-term condition evaluation, i.e. second filter would not
 * be invoked if first filter returned {@code false}.
 */
class GridClientAndPredicate implements GridClientPredicate {
    /** First filter to check. */
    private GridClientPredicate first;

    /** Second filter to check. */
    private GridClientPredicate second;

    /**
     * Creates AND filter.
     *
     * @param first First filter to check.
     * @param second Second filter to check.
     */
    GridClientAndPredicate(GridClientPredicate first, GridClientPredicate second) {
        assert first != null;
        assert second != null;

        this.first = first;
        this.second = second;
    }

    /** {@inheritDoc} */
    @Override public boolean apply(T elem) {
        return first.apply(elem) && second.apply(elem);
    }
}