/**
* Get the service like IDataServiceMetadataProvider, IDataServiceQueryProvider,
* IDataServiceStreamProvider
*
* @param String $serviceType Type of service IDataServiceMetadataProvider,
* IDataServiceQueryProvider,
* IDataServiceStreamProvider
*
* @see library/ODataProducer/ODataProducer.IServiceProvider::getService()
* @return object
*/
public function getService($serviceType)
{
if ($serviceType === 'IDataServiceMetadataProvider' || $serviceType === 'IDataServiceQueryProvider2' || $serviceType === 'IDataServiceStreamProvider') {
if (is_null($this->_NorthWindExpressionProvider)) {
$this->_NorthWindExpressionProvider = new NorthWindDSExpressionProvider();
}
}
if ($serviceType === 'IDataServiceMetadataProvider') {
if (is_null($this->_NorthWindMetadata)) {
$this->_NorthWindMetadata = CreateNorthWindMetadata::create();
}
return $this->_NorthWindMetadata;
} else {
if ($serviceType === 'IDataServiceQueryProvider') {
if (is_null($this->_NorthWindQueryProvider)) {
$this->_NorthWindQueryProvider = new NorthWindQueryProvider();
}
return $this->_NorthWindQueryProvider;
} else {
if ($serviceType === 'IDataServiceStreamProvider') {
return new NorthWindStreamProvider();
}
}
}
return null;
}
/**
* Get the service like IMetadataProvider, IDataServiceQueryProvider,
* IStreamProvider
*
* @param String $serviceType Type of service IMetadataProvider,
* IDataServiceQueryProvider,
* IQueryProvider,
* IStreamProvider
*
* @see library/POData.IServiceProvider::getService()
* @return object
*/
public function getService($serviceType)
{
if ($serviceType === 'IMetadataProvider') {
if (is_null($this->_northWindMetadata)) {
$this->_northWindMetadata = CreateNorthWindMetadata::create();
}
return $this->_northWindMetadata;
} else {
if ($serviceType === 'IQueryProvider') {
if (is_null($this->_northWindQueryProvider)) {
$this->_northWindQueryProvider = new NorthWindQueryProvider();
}
return $this->_northWindQueryProvider;
} else {
if ($serviceType === 'IStreamProvider') {
return new NorthWindStreamProvider();
}
}
}
return null;
}