Bug 196745 Data Engine implementation of BPS80- Result Set Sharing
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/CacheResultIterator.java
* @see org.eclipse.birt.data.engine.api.IResultIterator#findGroup(java.lang.Object[])
	 */
	public boolean findGroup( Object[] groupKeyValues ) throws BirtException
	{
		throw new UnsupportedOperationException( );
	}
	/*
	 * @see org.eclipse.birt.data.engine.api.IResultIterator#getBoolean(java.lang.String)
	 */
	public Boolean getBoolean( String name ) throws BirtException
	{
		return DataTypeUtil.toBoolean( getValue( name ) );
	}
	/*
	 * @see org.eclipse.birt.data.engine.api.IResultIterator#getInteger(java.lang.String)
	 */
	public Integer getInteger( String name ) throws BirtException
	{
		return DataTypeUtil.toInteger( getValue( name ) );
	}
	/*
	 * @see org.eclipse.birt.data.engine.api.IResultIterator#getDouble(java.lang.String)
	 */
	public Double getDouble( String name ) throws BirtException
	{
		return DataTypeUtil.toDouble( getValue( name ) );
	}
	/*
	 * @see org.eclipse.birt.data.engine.api.IResultIterator#getString(java.lang.String)
	 */