Bug 192562 NPE throws out in preview when left one requied column member value empty in sorting of crosstab[1102]
Description: NPE throws out in preview when left one requied column member value empty in sorting of crosstab[1102] Build number: 2.2.0.v20070614-0630 Steps to reproduce: 1, New a crosstab 2, Specify the sorting on measure 3, Left one group-level-member empty 4, Preview Expected result: No NPE and give out a warning that the group-level-member should not be null like the behavior of filter Actual result: NPE throws out, and the warning message is incorrect
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/olap/data/impl/aggregation/sort/AggrSortDefinition.java
/**
	 * 
	 * @return
	 */
	public Object[] getAxisQualifierValue()
	{
		return this.axisQualifierValue;
	}
	
	/**
	 * 
	 * @return
	 */
	public DimLevel getTargetLevel()
	{
		return this.targetLevel;
	}
	
	/**
	 * 
	 * @return
	 */
	public boolean getDirection()
	{
		return this.direction;
	}
	
}