public FilterHelper(Map filters,
    Dialect dialect,
    SQLFunctionRegistry functionRegistry) 
{
		int filterCount = filters.size();
		filterNames = new String[filterCount];
		filterConditions = new String[filterCount];
		Iterator iter = filters.entrySet().iterator();
		filterCount = 0;
		while ( iter.hasNext() ) {
			final Map.Entry entry = (Map.Entry) iter.next();
			filterNames[filterCount] = (String) entry.getKey();
			filterConditions[filterCount] = Template.renderWhereStringTemplate(
					(String) entry.getValue(),
					FilterImpl.MARKER,
					dialect,
					functionRegistry
				);
			filterConditions[filterCount] = StringHelper.replace( filterConditions[filterCount],
					":",
					":" + filterNames[filterCount] + "." );
			filterCount++;
		}
}

The map of defined filters. This is expected to be in format where the filter names are the map keys, and the defined conditions are the values.

Parameters:

filters - The map of defined filters.

dialect - The sql dialect

functionRegistry - The SQL function registry

 public boolean isAffectedBy(Map enabledFilters) 
{
		for ( int i = 0, max = filterNames.length; i <  max; i++ ) {
			if ( enabledFilters.containsKey( filterNames[i] ) ) {
				return true;
			}
		}
		return false;
}

 public String render(String alias,
    Map enabledFilters) 
{
		StringBuffer buffer = new StringBuffer();
		render( buffer, alias, enabledFilters );
		return buffer.toString();
}

 public  void render(StringBuffer buffer,
    String alias,
    Map enabledFilters) 
{
		if ( filterNames != null && filterNames.length  > 0 ) {
			for ( int i = 0, max = filterNames.length; i <  max; i++ ) {
				if ( enabledFilters.containsKey( filterNames[i] ) ) {
					final String condition = filterConditions[i];
					if ( StringHelper.isNotEmpty( condition ) ) {
						buffer.append( " and " )
								.append( StringHelper.replace( condition, FilterImpl.MARKER, alias ) );
					}
				}
			}
		}
}