public function union( common_Collection $collection)
    {
        $returnValue = null;

        
        $returnValue = new core_kernel_classes_ContainerCollection($this);     
        $returnValue->sequence = array_merge($this->sequence, $collection->sequence );      
        

        return $returnValue;
    }
public function union( common_Collection $collection)
    {
        $returnValue = null;

        
        $returnValue = new core_kernel_classes_ContainerCollection($this);     
        $returnValue->sequence = array_merge($this->sequence, $collection->sequence );      
        

        return $returnValue;
    }
public function union ( common_Collection $ collection ) { $ returnValue = null ; $ returnValue = new core_kernel_classes_ContainerCollection ( $ this ) ; $ returnValue -> sequence = array_merge ( $ this -> sequence , $ collection -> sequence ) ; return $ returnValue ; }
Short description of method union

@access public
@author Jerome Bogaerts, <jerome.bogaerts@tudor.lu>
@param  Collection collection
@return core_kernel_classes_ContainerCollection
Short description of method union