/*
* 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.MoreObjects;
import com.google.common.base.Objects;
import com.google.common.base.Preconditions;
import javax.annotation.Nullable;
public class MatchPredicateColumnIdent extends Expression {
private final Expression ident;
private final Expression boost;
public MatchPredicateColumnIdent(Expression ident, @Nullable Expression boost) {
this.ident = ident;
if (boost != null) {
Preconditions.checkArgument(
boost instanceof LongLiteral || boost instanceof DoubleLiteral || boost instanceof ParameterExpression,
"'boost' value must be a numeric literal or a parameter expression");
}
this.boost = MoreObjects.firstNonNull(boost, NullLiteral.INSTANCE);
}
public Expression columnIdent() {
return ident;
}
public Expression boost() {
return boost;
}
@Override
public int hashCode() {
return Objects.hashCode(ident, boost);
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
MatchPredicateColumnIdent that = (MatchPredicateColumnIdent) o;
if (!ident.equals(that.ident)) {
return false;
}
if (!boost.equals(that.boost)) {
return false;
}
return true;
}
@Override
public <R, C> R accept(AstVisitor<R, C> visitor, C context) {
return visitor.visitMatchPredicateColumnIdent(this, context);
}
}