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<?php
/**
* File containing the ezcGraphArrayDataSet class
*
* 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 Graph
* @version //autogentag//
* @copyright Copyright (C) 2005-2010 eZ Systems AS. All rights reserved.
* @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
*/
/**
* Dataset class which receives arrays and use them as a base for datasets.
*
* @version //autogentag//
* @package Graph
* @mainclass
*/
class ezcGraphArrayDataSet extends ezcGraphDataSet
{
/**
* Constructor
*
* @param array|Iterator $data Array or Iterator containing the data
* @return void
*/
public function __construct( $data )
{
$this->createFromArray( $data );
parent::__construct();
}
/**
* setData
*
* Can handle data provided through an array or iterator.
*
* @param array|Iterator $data
* @access public
* @return void
*/
protected function createFromArray( $data = array() )
{
if ( !is_array( $data ) &&
!( $data instanceof Traversable ) )
{
throw new ezcGraphInvalidArrayDataSourceException( $data );
}
$this->data = array();
foreach ( $data as $key => $value )
{
$this->data[$key] = $value;
}
if ( !count( $this->data ) )
{
throw new ezcGraphInvalidDataException( 'Data sets should contain some values.' );
}
}
/**
* Returns the number of elements in this dataset
*
* @return int
*/
public function count()
{
return count( $this->data );
}
}
?>
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