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Hadoop is the distributed computing framework of Apache; hadoop-core contains
the filesystem, job tracker and map/reduce modules
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/**
* 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.security;
import java.security.Principal;
/**
* A group to which a user belongs to.
*/
public class Group implements Principal {
final String group;
/**
* Create a new Group
with the given groupname.
* @param group group name
*/
public Group(String group) {
this.group = group;
}
@Override
public String getName() {
return group;
}
@Override
public String toString() {
return group;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((group == null) ? 0 : group.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Group other = (Group) obj;
if (group == null) {
if (other.group != null)
return false;
} else if (!group.equals(other.group))
return false;
return true;
}
}