public FilterImpl(FilterDefinition configuration) 
{
		this.definition = configuration;
		filterName = definition.getFilterName();
}

Constructs a new FilterImpl.

Parameters:

configuration - The filter's global configuration.

  void afterDeserialize(SessionFactoryImpl factory) 
{
	
		definition = factory.getFilterDefinition(filterName);
}

 public FilterDefinition getFilterDefinition() 
{
		return definition;
}

 public String getName() 
{
		return definition.getFilterName();
}

Get the name of this filter.

 public Object getParameter(String name) 
{
		return parameters.get( name );
}

Get the value of the named parameter for the current filter.

 public Map getParameters() 
{
		return parameters;
}

 public Filter setParameter(String name,
    Object value) throws IllegalArgumentException 
{
		// Make sure this is a defined parameter and check the incoming value type
		// TODO: what should be the actual exception type here?
		Type type = definition.getParameterType( name );
		if ( type == null ) {
			throw new IllegalArgumentException( "Undefined filter parameter [" + name + "]" );
		}
		if ( value != null && !type.getReturnedClass().isAssignableFrom( value.getClass() ) ) {
			throw new IllegalArgumentException( "Incorrect type for parameter [" + name + "]" );
		}
		parameters.put( name, value );
		return this;
}

Set the named parameter's value for this filter.

 public Filter setParameterList(String name,
    Collection values) throws HibernateException 
{
		// Make sure this is a defined parameter and check the incoming value type
		if ( values == null ) {
			throw new IllegalArgumentException( "Collection must be not null!" );
		}
		Type type = definition.getParameterType( name );
		if ( type == null ) {
			throw new HibernateException( "Undefined filter parameter [" + name + "]" );
		}
		if ( values.size()  > 0 ) {
			Class elementClass = values.iterator().next().getClass();
			if ( !type.getReturnedClass().isAssignableFrom( elementClass ) ) {
				throw new HibernateException( "Incorrect type for parameter [" + name + "]" );
			}
		}
		parameters.put( name, values );
		return this;
}

Set the named parameter's value list for this filter. Used in conjunction with IN-style filter criteria.

 public Filter setParameterList(String name,
    Object[] values) throws IllegalArgumentException 
{
		return setParameterList( name, Arrays.asList( values ) );
}

Set the named parameter's value list for this filter. Used in conjunction with IN-style filter criteria.

 public  void validate() throws HibernateException 
{
		// for each of the defined parameters, make sure its value
		// has been set
		Iterator itr = definition.getParameterNames().iterator();
		while ( itr.hasNext() ) {
			final String parameterName = (String) itr.next();
			if ( parameters.get( parameterName ) == null ) {
				throw new HibernateException(
						"Filter [" + getName() + "] parameter [" + parameterName + "] value not set"
				);
			}
		}
}

Perform validation of the filter state. This is used to verify the state of the filter after its enablement and before its use.