Bug 212505 Use default script ID to skip script debugging
In Dte side, when compile or evaluate java script, it would pass in a script source id. This kind of id is currenlty used by report script debugger. So to skip redundant processing for such kind of internal script evaluating, dte need pass in a default ID, which is defined as ScriptExpression.defaultID. If this id is already used for particular meaning and it can not pass in the default ID, we need define them as public constants and let script debugger check and skip them as well.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/adapter/ModelDteApiAdapter.java
return newInputParamBinding( modelInputParamBndg.getParamName( ),
				modelInputParamBndg.getExpression( ) );
	}
	private IInputParameterBinding newInputParamBinding( String paramName,
			String paramValue )
	{
		if ( paramValue == null )
			return null; 
		ScriptExpression paramValueExpr = new ScriptExpression( paramValue );
		return new InputParameterBinding( paramName, paramValueExpr );
	}
	/**
	 * Creates a new DtE API Computed Column from a model computed column. Could
	 * return null if no expression is defined.
	 * 
	 * @throws EngineException
	 */
	IComputedColumn newComputedColumn( ComputedColumnHandle modelCmptdColumn )
			throws EngineException
	{
		
		if ( modelCmptdColumn.getExpression( ) == null
				&& modelCmptdColumn.getAggregateFunction( ) == null )
		{
			throw new EngineException( MessageConstants.MISSING_COMPUTED_COLUMN_EXPRESSION_EXCEPTION,
					modelCmptdColumn.getName( ) );
		}
		List argumentList = new ArrayList( );
		Iterator argumentIter = modelCmptdColumn.argumentsIterator( );
		while ( argumentIter.hasNext( ) )