Package com.volantis.xml.expression

Examples of com.volantis.xml.expression.InternalExpressionContext

79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
    public void iterate(DynamicProcess dynamicProcess)
            throws SAXException {
       
        XMLPipelineContext pipelineContext =
                dynamicProcess.getPipeline().getPipelineContext();
        InternalExpressionContext expressionContext =
                (InternalExpressionContext)
                pipelineContext.getExpressionContext();

        PipelinePlayer player = recording.createPlayer();

        // Push a new scope to contain the variable and shadow any variable
        // with the same name.
        expressionContext.pushBlockScope();

        // Push a new position scope to track the iteration position
        expressionContext.pushPositionScope();
        PositionScope pc = expressionContext.getPositionScope();

        // Declare an unitialized variable.
        InternalExpressionScope scope = (InternalExpressionScope)
                expressionContext.getCurrentScope();
        Variable variable = scope.declareVariable(variableName);

        // Iterate over the sequence.
        int length = sequence.getLength();

        for (int i = 1; i <= length; i += 1) {
            // Increment to the next position in the sequence
            pc.increment();

            // Get the item.
            try {
                variable.setValue(sequence.getItem(i));
            } catch (SequenceIndexOutOfBoundsException e) {
                throw new ExtendedSAXException(e);
            }

            // Replay the events through the dynamic process.
            player.play(dynamicProcess);
        }

        // Make sure to pop the scope for tracking position the one that
        // contains the variable.
        expressionContext.popPositionScope();
        expressionContext.popBlockScope();
    }
View Full Code Here
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
            DynamicProcess dynamicProcess, ExpandedName expandedName,
            Attributes attributes) throws SAXException {

        XMLPipelineContext context =
                dynamicProcess.getPipeline().getPipelineContext();
        InternalExpressionContext expressionContext =
                (InternalExpressionContext)
                context.getExpressionContext();

        // The iterator that is returned.
        EndElementAction action;

        // Evaluate the in expression to a sequence.
        String inExpression = attributes.getValue("in");
        final Sequence sequence = evaluateExpression(expressionContext, inExpression);
        int length = sequence.getLength();
        if (length == 0) {
            // The sequence is empty so there is nothing to do so just skip
            // the body and do not create an iterator.
            context.getFlowControlManager().exitCurrentElement();
            action = EndElementAction.DO_NOTHING;
        } else {

            // Resolve the variable name into an ExpandedName, if the variable
            // name does not have a prefix then it belongs in no namespace,
            // rather than the default namespace.
            String variableName = attributes.getValue("variable");
            QName variableQName = new ImmutableQName(variableName);
            final ExpandedName variableExpandedName =
                    context.getNamespacePrefixTracker()
                    .resolveQName(variableQName, null);

            // If the sequence only has a single value in then it is not
            // necessary to store the body away to be evaluated multiple times.
            if (length == 1) {

                // Create a new block scope to contain the variable.
                expressionContext.pushBlockScope();

                // Create a variable in the current stack frame.
                try {
                    expressionContext.getCurrentScope()
                            .declareVariable(variableExpandedName,
                                    sequence.getItem(1));
                } catch (SequenceIndexOutOfBoundsException e) {
                    throw new ExtendedSAXException(e);
                }
View Full Code Here
37
38
39
40
41
42
43
44
45
46
47
    public void doAction(DynamicProcess dynamicProcess)
            throws SAXException {

        XMLPipelineContext pipelineContext =
                dynamicProcess.getPipeline().getPipelineContext();
        InternalExpressionContext expressionContext =
                (InternalExpressionContext)
                pipelineContext.getExpressionContext();

        expressionContext.popBlockScope();
    }
View Full Code Here
TOP

Related Classes of com.volantis.xml.expression.InternalExpressionContext

  • com.volantis.xml.pipeline.sax.operations.foreach.ForEachIterator
  • com.volantis.xml.pipeline.sax.operations.foreach.ForEachRule
  • com.volantis.xml.pipeline.sax.operations.foreach.PopBlockScopeAction
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.