Bug 164586 [compatibility]Preview attached report throws multiple exception[0901]
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/adapter/ModelDteApiAdapter.java
dteParam.setNativeType( modelParam.getNativeDataType( ).intValue( ) );
		dteParam.setType( toDteDataType( modelParam.getDataType( ) ) );
		dteParam.setInputMode( modelParam.isInput( ) );
		dteParam.setOutputMode( modelParam.isOutput( ) );
		dteParam.setNullable( modelParam.allowNull( ) );
		dteParam.setInputOptional( modelParam.isOptional( ) );
		dteParam.setDefaultInputValue( modelParam.getDefaultValue( ) );
		return dteParam;
	}
	/**
	 * Creates a new DtE API InputParamBinding from a model's binding. Could
	 * return null if no expression is bound.
	 */
	IInputParameterBinding newInputParamBinding(
			ParamBindingHandle modelInputParamBndg )
	{
		
		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