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Neo4j property value system.
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/*
* Copyright (c) "Neo4j"
* Neo4j Sweden AB [https://neo4j.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 .
*/
package org.neo4j.values;
public interface ElementIdMapper {
/**
* @param id the node element id
* @return the node id
* @throws IllegalArgumentException
*/
long nodeId(String id);
/**
* @param id the relationship element id
* @return the relationship id
* @throws IllegalArgumentException
*/
long relationshipId(String id);
/**
* @param id the node id
* @return the encoded element id for the corresponding node id
*/
String nodeElementId(long id);
/**
* @param id the relationship id
* @return the encoded relationship id for the corresponding node id
*/
String relationshipElementId(long id);
ElementIdMapper PLACEHOLDER = new ElementIdMapper() {
@Override
public long nodeId(String id) {
return Long.valueOf(id.split("::")[1]);
}
@Override
public long relationshipId(String id) {
return Long.valueOf(id.split("::")[1]);
}
@Override
public String nodeElementId(long id) {
return "n::" + String.valueOf(id);
}
@Override
public String relationshipElementId(long id) {
return "r::" + String.valueOf(id);
}
};
}
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