DataObjectPool.class.php

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<?php

namespace DDDBL;

class DataObjectPool {

  private $strGroup = null;
  
  static private $arrValidatorList = array();
  
  static private $arrDataObjects = array(); 

  public function __construct($strGroup) {
  
    if(!is_string($strGroup))
      throw new UnexpectedParameterTypeException('string', $strGroup);
    
    $this->strGroup = $strGroup;
    
    if(!array_key_exists($this->strGroup, self::$arrValidatorList))
      self::$arrValidatorList[$this->strGroup] = null;
    
    if(!array_key_exists($this->strGroup, self::$arrDataObjects))
      self::$arrDataObjects[$this->strGroup] = array();

  }
  
  public function setValidator($cloValidator) {
  
    if(!is_callable($cloValidator))
      throw new UnexpectedParameterTypeException('string', $cloValidator);
    
    self::$arrValidatorList[$this->strGroup] = $cloValidator;
    
  }
  
  public function add($strIdentifier, array $arrData) {
  
    if(!is_string($strIdentifier))
      throw new UnexpectedParameterTypeException('string', $strIdentifier);
    
    if($this->exists($strIdentifier))
      throw new \Exception ("identifier already in use: $strIdentifier");
    
    $objDataObject = new DataObject(self::$arrValidatorList[$this->strGroup], $arrData);
    
    self::$arrDataObjects[$this->strGroup][$strIdentifier] = $objDataObject;
    
    return $objDataObject;
  
  }
  
  public function delete($strIdentifier) {
    
    if(!is_string($strIdentifier))
      throw new UnexpectedParameterTypeException('string', $strIdentifier);
    
    if(!$this->exists($strIdentifier))
      throw new \Exception ("DataObject not found, identifier unknown: $strIdentifier");
    
    unset(self::$arrDataObjects[$this->strGroup][$strIdentifier]);
  
  }
  
  public function exists($strIdentifier) {
  
    if(!is_string($strIdentifier))
      throw new UnexpectedParameterTypeException('string', $strIdentifier);
      
    if(!isset(self::$arrDataObjects[$this->strGroup][$strIdentifier]))
      return false;
    
    return true;
  
  }
  
  public function get($strIdentifier) {
  
    if(!is_string($strIdentifier))
      throw new UnexpectedParameterTypeException('string', $strIdentifier);
    
    if(!$this->exists($strIdentifier))
      throw new \Exception ("DataObject not found, identifier unknown: $strIdentifier");
      
    return self::$arrDataObjects[$this->strGroup][$strIdentifier];
    
  }
  
  public function getAll() {
  
    return self::$arrDataObjects[$this->strGroup];
  
  }

}