/*
 * Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
 * license agreements.  See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.  Crate 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.
 *
 * However, if you have executed another commercial license agreement
 * with Crate these terms will supersede the license and you may use the
 * software solely pursuant to the terms of the relevant commercial agreement.
 */

package io.crate.sql.tree;

/**
 * <pre>
 *      expression cmpOp quantifier ( arrayExpression )
 * </pre>
 * <p>
 * E.g.
 * <pre>
 *      x = ANY ([1, 2, 3])
 * </pre>
 * <p>
 * Use {@link #getLeft()} to access expression.
 * Use {@link #getRight()} to access arrayExpression
 */
public class ArrayComparisonExpression extends ComparisonExpression implements ArrayComparison {

    private final Quantifier quantifier;

    public ArrayComparisonExpression(Type type,
                                     Quantifier quantifier,
                                     Expression expression,
                                     Expression arrayExpression) {
        super(type, expression, arrayExpression);
        this.quantifier = quantifier;
    }

    @Override
    public Quantifier quantifier() {
        return quantifier;
    }

    @Override
    public <R, C> R accept(AstVisitor<R, C> visitor, C context) {
        return visitor.visitArrayComparisonExpression(this, context);
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        if (!super.equals(o)) return false;

        ArrayComparisonExpression that = (ArrayComparisonExpression) o;

        if (quantifier != that.quantifier) return false;

        return true;
    }

    @Override
    public int hashCode() {
        int result = super.hashCode();
        result = 31 * result + (quantifier != null ? quantifier.hashCode() : 0);
        return result;
    }
}