Bug 213824 The data fetch setting in dataset(row limit number) isn't effect.
Steps To Reproduce: Please refer to issue #210606, the data fetch setting in dataset isn't effect. Thanks.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/executor/DataSetCacheManager.java
return lastCacheOption;
	}
	/**
	 * @param rowCount
	 */
	public void setAlwaysCacheRowCount( int rowCount )
	{
		this.alwaysCacheRowCount = rowCount;
	}
	/**
	 * Remember before requesting any service, this function must be called in
	 * advance to make sure using current data source and data set.
	 * 
	 * @param dataSourceDesign
	 * @param datasetDesign
	 */
	public void setDataSourceAndDataSet(
			IBaseDataSourceDesign dataSourceDesign,
			IBaseDataSetDesign dataSetDesign, Collection parameterHints, Map appContext )
	{
		this.dataSourceDesign = dataSourceDesign;
		this.dataSetDesign = dataSetDesign;
		this.parameterHints = parameterHints;
		this.appContext = appContext;
		setRowFetchLimit( );
		/*if ( needToMerge )
		{
			try
			{
				this.mergeDelta( );