/
Group.java
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/
Group.java
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/**
* Copyright (c) 2002-2015 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.unsafe.impl.batchimport.input;
import org.neo4j.unsafe.impl.batchimport.cache.idmapping.IdMapper;
/**
* Group of {@link InputEntity inputs}. Used primarily in {@link IdMapper} for supporting multiple
* id groups within the same index.
*/
public interface Group
{
/**
* @return id of this group, used for identifying this group.
*/
int id();
/**
* @return the name of this group.
*/
String name();
/**
* @return {@link #name()}.
*/
@Override
String toString();
class Adapter implements Group
{
private final int id;
private final String name;
public Adapter( int id, String name )
{
this.id = id;
this.name = name;
}
@Override
public int id()
{
return id;
}
@Override
public String name()
{
return name;
}
@Override
public String toString()
{
return "(" + name + "," + id + ")";
}
@Override
public int hashCode()
{
final int prime = 31;
int result = 1;
result = prime * result + id;
return result;
}
@Override
public boolean equals( Object obj )
{
return obj instanceof Group && ((Group)obj).id() == id;
}
}
Group GLOBAL = new Adapter( 0, "global id space" );
}