Bug 208511 The memory cache issue when preview crosstab in deploy environment[1102]
data/org.eclipse.birt.report.data.adapter/src/org/eclipse/birt/report/data/adapter/impl/DataRequestSessionImpl.java
levelInHier, stopSign ) );
		}
		return cubeMaterializer.createDimension( dim.getName( ),
				(IHierarchy) iHiers.get( 0 ) ) ;
	}
	/**
	 * 
	 * @param levels
	 * @param levelInHier
	 * @param leafLevelKeyColumn
	 */
	private void createLeafLevel( List levels, ILevelDefn[] levelInHier,
			String[] leafLevelKeyColumn )
	{
		if( levelInHier.length > levels.size() )
		{
			levelInHier[levelInHier.length-1] = CubeElementFactory.createLevelDefinition( "_${INTERNAL_INDEX}$_",
				leafLevelKeyColumn,
			    new String[0] );
		}
	}
	
	/**
	 * 
	 * @param object
	 * @return
	 */
	private String[] toStringArray( List object )
	{
		String[] result = new String[object.size( )];