/*
* 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.Objects;
import java.util.Locale;
/**
* columntype that contains many values of a single type
*/
public class CollectionColumnType extends ColumnType {
private final ColumnType innerType;
public static CollectionColumnType array(ColumnType innerType) {
return new CollectionColumnType(innerType, Type.ARRAY);
}
public static CollectionColumnType set(ColumnType innerType) {
return new CollectionColumnType(innerType, Type.SET);
}
private CollectionColumnType(ColumnType innerType, Type type) {
super(type.name().toUpperCase(Locale.ENGLISH), type);
this.innerType = innerType;
}
public ColumnType innerType() {
return innerType;
}
@Override
public int hashCode() {
return Objects.hashCode(name, type, innerType);
}
@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;
CollectionColumnType that = (CollectionColumnType) o;
if (!innerType.equals(that.innerType)) return false;
return true;
}
@Override
public <R, C> R accept(AstVisitor<R, C> visitor, C context) {
return visitor.visitCollectionColumnType(this, context);
}
}