RunQuery() private method

private RunQuery ( ActionFrame context, int key ) : object
context ActionFrame
key int
return object
コード例 #1
0
        internal override void Execute(Processor processor, ActionFrame frame) {
            Debug.Assert(processor != null && frame != null);
            object ParamValue;
            switch(frame.State) {
            case Initialized:           
                if (this.selectKey != Compiler.InvalidQueryKey) {
                    ParamValue = processor.RunQuery(frame, this.selectKey);
                    processor.SetParameter(this.name, ParamValue);
                    frame.Finished();
                }
                else {
                    if (this.containedActions == null) {
                        processor.SetParameter(this.name, string.Empty);
                        frame.Finished();
                        break;
                    }
                    NavigatorOutput output = new NavigatorOutput(baseUri);
                    processor.PushOutput(output);
                    processor.PushActionFrame(frame);
                    frame.State = ProcessingChildren;
                }
                break;
            case ProcessingChildren:
                RecordOutput recOutput = processor.PopOutput();
                Debug.Assert(recOutput is NavigatorOutput);
                processor.SetParameter(this.name,((NavigatorOutput)recOutput).Navigator);
                frame.Finished();
                break;
            default:
                Debug.Fail("Invalid execution state inside VariableAction.Execute");
		    break;
            }
        }
コード例 #2
0
        internal override void Execute(Processor processor, ActionFrame frame)
        {
            Debug.Assert(processor != null && frame != null);
            object ParamValue;

            switch (frame.State)
            {
            case Initialized:
                if (this.selectKey != Compiler.InvalidQueryKey)
                {
                    ParamValue = processor.RunQuery(frame, this.selectKey);
                    processor.SetParameter(this.name !, ParamValue);
                    frame.Finished();
                }
                else
                {
                    if (this.containedActions == null)
                    {
                        processor.SetParameter(this.name !, string.Empty);
                        frame.Finished();
                        break;
                    }
                    NavigatorOutput output = new NavigatorOutput(baseUri !);
                    processor.PushOutput(output);
                    processor.PushActionFrame(frame);
                    frame.State = ProcessingChildren;
                }
                break;

            case ProcessingChildren:
                IRecordOutput recOutput = processor.PopOutput();
                Debug.Assert(recOutput is NavigatorOutput);
                processor.SetParameter(this.name !, ((NavigatorOutput)recOutput).Navigator);
                frame.Finished();
                break;

            default:
                Debug.Fail("Invalid execution state inside VariableAction.Execute");
                break;
            }
        }
コード例 #3
0
ファイル: VariableAction.cs プロジェクト: Corillian/corefx
        internal override void Execute(Processor processor, ActionFrame frame)
        {
            Debug.Assert(processor != null && frame != null && frame.State != ValueCalculated);
            object value = null;

            switch (frame.State)
            {
                case Initialized:
                    if (IsGlobal)
                    {
                        if (frame.GetVariable(_varKey) != null)
                        { // This var was calculated already
                            frame.Finished();
                            break;
                        }
                        // Mark that the variable is being computed to check for circular references
                        frame.SetVariable(_varKey, BeingComputedMark);
                    }
                    // If this is a parameter, check whether the caller has passed the value
                    if (this.varType == VariableType.GlobalParameter)
                    {
                        value = processor.GetGlobalParameter(this.name);
                    }
                    else if (this.varType == VariableType.LocalParameter)
                    {
                        value = processor.GetParameter(this.name);
                    }
                    if (value != null)
                    {
                        goto case ValueCalculated;
                    }

                    // If value was not passed, check the 'select' attribute
                    if (this.selectKey != Compiler.InvalidQueryKey)
                    {
                        value = processor.RunQuery(frame, this.selectKey);
                        goto case ValueCalculated;
                    }

                    // If there is no 'select' attribute and the content is empty, use the empty string
                    if (this.containedActions == null)
                    {
                        value = string.Empty;
                        goto case ValueCalculated;
                    }

                    // RTF case
                    NavigatorOutput output = new NavigatorOutput(this.baseUri);
                    processor.PushOutput(output);
                    processor.PushActionFrame(frame);
                    frame.State = ProcessingChildren;
                    break;

                case ProcessingChildren:
                    RecordOutput recOutput = processor.PopOutput();
                    Debug.Assert(recOutput is NavigatorOutput);
                    value = ((NavigatorOutput)recOutput).Navigator;
                    goto case ValueCalculated;

                case ValueCalculated:
                    Debug.Assert(value != null);
                    frame.SetVariable(_varKey, value);
                    frame.Finished();
                    break;

                default:
                    Debug.Fail("Invalid execution state inside VariableAction.Execute");
                    break;
            }
        }
コード例 #4
0
        internal override void Execute(Processor processor, ActionFrame frame)
        {
            Debug.Assert(processor != null && frame != null && frame.State != ValueCalculated);
            object value = null;

            switch (frame.State)
            {
            case Initialized:
                if (IsGlobal)
                {
                    if (frame.GetVariable(_varKey) != null)
                    {     // This var was calculated already
                        frame.Finished();
                        break;
                    }
                    // Mark that the variable is being computed to check for circular references
                    frame.SetVariable(_varKey, BeingComputedMark);
                }
                // If this is a parameter, check whether the caller has passed the value
                if (this.varType == VariableType.GlobalParameter)
                {
                    value = processor.GetGlobalParameter(this.name);
                }
                else if (this.varType == VariableType.LocalParameter)
                {
                    value = processor.GetParameter(this.name);
                }
                if (value != null)
                {
                    goto case ValueCalculated;
                }

                // If value was not passed, check the 'select' attribute
                if (this.selectKey != Compiler.InvalidQueryKey)
                {
                    value = processor.RunQuery(frame, this.selectKey);
                    goto case ValueCalculated;
                }

                // If there is no 'select' attribute and the content is empty, use the empty string
                if (this.containedActions == null)
                {
                    value = string.Empty;
                    goto case ValueCalculated;
                }

                // RTF case
                NavigatorOutput output = new NavigatorOutput(this.baseUri);
                processor.PushOutput(output);
                processor.PushActionFrame(frame);
                frame.State = ProcessingChildren;
                break;

            case ProcessingChildren:
                IRecordOutput recOutput = processor.PopOutput();
                Debug.Assert(recOutput is NavigatorOutput);
                value = ((NavigatorOutput)recOutput).Navigator;
                goto case ValueCalculated;

            case ValueCalculated:
                Debug.Assert(value != null);
                frame.SetVariable(_varKey, value);
                frame.Finished();
                break;

            default:
                Debug.Fail("Invalid execution state inside VariableAction.Execute");
                break;
            }
        }