/*
* 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;
import com.google.common.base.Preconditions;
public class LikePredicate
extends Expression {
private final Expression value;
private final Expression pattern;
private final Expression escape;
public LikePredicate(Expression value, Expression pattern, Expression escape) {
Preconditions.checkNotNull(value, "value is null");
Preconditions.checkNotNull(pattern, "pattern is null");
this.value = value;
this.pattern = pattern;
this.escape = escape;
}
public Expression getValue() {
return value;
}
public Expression getPattern() {
return pattern;
}
public Expression getEscape() {
return escape;
}
@Override
public <R, C> R accept(AstVisitor<R, C> visitor, C context) {
return visitor.visitLikePredicate(this, context);
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
LikePredicate that = (LikePredicate) o;
if (escape != null ? !escape.equals(that.escape) : that.escape != null) {
return false;
}
if (!pattern.equals(that.pattern)) {
return false;
}
if (!value.equals(that.value)) {
return false;
}
return true;
}
@Override
public int hashCode() {
int result = value.hashCode();
result = 31 * result + pattern.hashCode();
result = 31 * result + (escape != null ? escape.hashCode() : 0);
return result;
}
}