/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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.groovy.ginq.dsl.expression;

import org.codehaus.groovy.ast.expr.Expression;

/**
 * Represents filter expression
 *
 * @since 4.0.0
 */
public abstract class FilterExpression extends ProcessExpression {
    /** Filter expression applied by the clause. */
    protected Expression filterExpr;

    /**
     * Creates a filter expression.
     *
     * @param filterExpr the filter condition
     */
    public FilterExpression(Expression filterExpr) {
        this.filterExpr = filterExpr;
    }

    /**
     * Returns the filter condition.
     *
     * @return the filter condition
     */
    public Expression getFilterExpr() {
        return filterExpr;
    }

    /**
     * Replaces the filter condition.
     *
     * @param filterExpr the new filter condition
     */
    public void setFilterExpr(Expression filterExpr) {
        this.filterExpr = filterExpr;
    }
}
