Bug 188224 DTE should give out APIs about CrossTab filter equal value list and member value list Util.
DTE should give out APIs about CrossTab filter equal value list and member value list Util.
data/org.eclipse.birt.report.data.adapter/src/org/eclipse/birt/report/data/adapter/impl/DataSetIterator.java
{
			
			switch ( fieldType )
			{
				case DataType.DATE_TYPE :
					return new java.util.Date( nullTime );
				case DataType.SQL_DATE_TYPE :
					return new java.sql.Date( nullTime );
				case DataType.SQL_TIME_TYPE :
					return new Time( nullTime );
				case DataType.BOOLEAN_TYPE :
					return new Boolean( false );
				case DataType.DECIMAL_TYPE :
					return new Double( 0 );
				case DataType.DOUBLE_TYPE :
					return new Double( 0 );
				case DataType.INTEGER_TYPE :
					return new Integer( 0 );
				case DataType.STRING_TYPE :
					return "";
				default :
					return "";
			}
		}
	}
	/**
	 * 
	 *
	 */
	private class ColumnMeta