/*
* Copyright (c) 2008-2010 "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 Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.graphmatching;
import java.lang.reflect.Array;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;
/**
* Just a temporary utility for dealing with Neo4j properties that are arrays.
* Since the Neo4j kernel arrays are returned as fundamental types, f.ex. int[],
* float[], String[] etc... And we'd like to deal with those as objects instead
* so that an equals method may be used.
*/
public class ArrayPropertyUtil
{
/**
* @param propertyValue node.getProperty value.
* @return a collection of all the values from a property. If the value is
* just a plain "single" value the collection will contain that
* single value. If the value is an array of values, all those
* values are added to the collection.
*/
public static Collection<Object> propertyValueToCollection(
Object propertyValue )
{
Set<Object> values = new HashSet<Object>();
try
{
int length = Array.getLength( propertyValue );
for ( int i = 0; i < length; i++ )
{
values.add( Array.get( propertyValue, i ) );
}
}
catch ( IllegalArgumentException e )
{
values.add( propertyValue );
}
return values;
}
}