org.apache.hadoop.hive.serde2.typeinfo.ListTypeInfo Maven / Gradle / Ivy
/**
* 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.hadoop.hive.serde2.typeinfo;
import java.io.Serializable;
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector.Category;
/**
* A List Type has homogeneous elements. All elements of the List has the same
* TypeInfo which is returned by getListElementTypeInfo.
*
* Always use the TypeInfoFactory to create new TypeInfo objects, instead of
* directly creating an instance of this class.
*/
public final class ListTypeInfo extends TypeInfo implements Serializable {
private static final long serialVersionUID = 1L;
private TypeInfo listElementTypeInfo;
/**
* For java serialization use only.
*/
public ListTypeInfo() {
}
@Override
public String getTypeName() {
return org.apache.hadoop.hive.serde.serdeConstants.LIST_TYPE_NAME + "<"
+ listElementTypeInfo.getTypeName() + ">";
}
/**
* For java serialization use only.
*/
public void setListElementTypeInfo(TypeInfo listElementTypeInfo) {
this.listElementTypeInfo = listElementTypeInfo;
}
/**
* For TypeInfoFactory use only.
*/
ListTypeInfo(TypeInfo elementTypeInfo) {
listElementTypeInfo = elementTypeInfo;
}
@Override
public Category getCategory() {
return Category.LIST;
}
public TypeInfo getListElementTypeInfo() {
return listElementTypeInfo;
}
@Override
public boolean equals(Object other) {
if (this == other) {
return true;
}
if (!(other instanceof ListTypeInfo)) {
return false;
}
return getListElementTypeInfo().equals(
((ListTypeInfo) other).getListElementTypeInfo());
}
@Override
public int hashCode() {
return listElementTypeInfo.hashCode();
}
}