Examples of org.apache.velocity.runtime.parser.node.ASTReference

This class is responsible for handling the references in VTL ($foo). Please look at the Parser.jjt file which is what controls the generation of this class. @author Jason van Zyl @author Geir Magnusson Jr. @author Christoph Reck @author


        if (astNode != null)
        {
            if (astNode.getType() == ParserTreeConstants.JJTREFERENCE)
            {
                ASTReference ref = (ASTReference) astNode;


                if (ref.jjtGetNumChildren() > 0)
                    ref.setValue(wrappedContext, value);
                else
                    wrappedContext.put(ref.getRootString(), value);


            }
            else
            {
                rsvc.getLog().error("ProxyVMContext.put() : New value cannot be assigned to a constant: "

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            // if the macro argument (astNode) is a reference, we need to evaluate it
            // in case it is a multilevel node
            if (type == ParserTreeConstants.JJTREFERENCE)
            {
                ASTReference ref = (ASTReference) astNode;


                if (ref.jjtGetNumChildren() > 0)
                {
                    return ref.execute(null, wrappedContext);
                }
                else
                {
                    Object obj = wrappedContext.get(ref.getRootString());
                    if (obj == null && ref.strictRef)
                    {
                        if (!wrappedContext.containsKey(ref.getRootString()))
                        {
                            throw new MethodInvocationException("Parameter '" + ref.getRootString() 
                                + "' not defined", null, key, ref.getTemplateName(), 
                                ref.getLine(), ref.getColumn());
                        }
                    }
                    return obj;
                }
            }

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            // if the macro argument (astNode) is a reference, we need to evaluate it
            // in case it is a multilevel node
            if (type == ParserTreeConstants.JJTREFERENCE)
            {
                ASTReference ref = (ASTReference) astNode;


                if (ref.jjtGetNumChildren() > 0)
                {
                    return ref.execute(null, innerContext);
                }
                else
                {
                    Object obj = innerContext.get(ref.getRootString());
                    if (obj == null && ref.strictRef)
                    {
                        if (!innerContext.containsKey(ref.getRootString()))
                        {
                            throw new MethodInvocationException("Parameter '" + ref.getRootString() 
                                + "' not defined", null, key, ref.getTemplateName(), 
                                ref.getLine(), ref.getColumn());
                        }
                    }
                    return obj;
                }
            }

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        Node astNode = (Node)vmproxyhash.get(key);
        if (astNode != null)
        {
            if (astNode.getType() == ParserTreeConstants.JJTREFERENCE)
            {
                ASTReference ref = (ASTReference)astNode;
                if (ref.jjtGetNumChildren() > 0)
                {
                    ref.setValue(innerContext, value);
                    return null;
                }
                else
                {
                    return innerContext.put(ref.getRootString(), value);
                }
            }
        }


        Object old = localcontext.put(key, value);

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            // if the macro argument (astNode) is a reference, we need to evaluate it
            // in case it is a multilevel node
            if (type == ParserTreeConstants.JJTREFERENCE)
            {
                ASTReference ref = (ASTReference) astNode;


                if (ref.jjtGetNumChildren() > 0)
                {
                    return ref.execute(null, innerContext);
                }
                else
                {
                    Object obj = innerContext.get(ref.getRootString());
                    if (obj == null && ref.strictRef)
                    {
                        if (!innerContext.containsKey(ref.getRootString()))
                        {
                            throw new MethodInvocationException("Parameter '" + ref.getRootString() 
                                + "' not defined", null, key, ref.getTemplateName(), 
                                ref.getLine(), ref.getColumn());
                        }
                    }
                    return obj;
                }
            }

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            // if the macro argument (astNode) is a reference, we need to evaluate it
            // in case it is a multilevel node
            if (type == ParserTreeConstants.JJTREFERENCE)
            {
                ASTReference ref = (ASTReference) astNode;


                if (ref.jjtGetNumChildren() > 0)
                {
                    return ref.execute(null, innerContext);
                }
                else
                {
                    Object obj = innerContext.get(ref.getRootString());
                    if (obj == null && ref.strictRef)
                    {
                        if (!innerContext.containsKey(ref.getRootString()))
                        {
                            throw new MethodInvocationException("Parameter '" + ref.getRootString() 
                                + "' not defined", null, key, ref.getTemplateName(), 
                                ref.getLine(), ref.getColumn());
                        }
                    }
                    return obj;
                }
            }

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            Iterator it = data.keySet().iterator();


            while(it.hasNext())
            {
                ASTReference ref = (ASTReference) it.next();


                ref.setValue(context, data.get(ref));
            }


            return true;
        }

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        Node astNode = (Node)vmproxyhash.get(key);
        if (astNode != null)
        {
            if (astNode.getType() == ParserTreeConstants.JJTREFERENCE)
            {
                ASTReference ref = (ASTReference)astNode;
                if (ref.jjtGetNumChildren() > 0)
                {
                    ref.setValue(innerContext, value);
                    return null;
                }
                else
                {
                    return innerContext.put(ref.getRootString(), value);
                }
            }
        }


        Object old = localcontext.put(key, value);

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            // if the macro argument (astNode) is a reference, we need to evaluate it
            // in case it is a multilevel node
            if (type == ParserTreeConstants.JJTREFERENCE)
            {
                ASTReference ref = (ASTReference) astNode;


                if (ref.jjtGetNumChildren() > 0)
                {
                    return ref.execute(null, innerContext);
                }
                else
                {
                    Object obj = innerContext.get(ref.getRootString());
                    if (obj == null && ref.strictRef)
                    {
                        if (!innerContext.containsKey(ref.getRootString()))
                        {
                            throw new MethodInvocationException("Parameter '" + ref.getRootString() 
                                + "' not defined", null, key, ref.getTemplateName(), 
                                ref.getLine(), ref.getColumn());
                        }
                    }
                    return obj;
                }
            }

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         * now restore the original values
         */


        for (int i = 0; i < refList.length; i++)
        {
            ASTReference astr = (ASTReference) refList[i];
            astr.setValue(context, vals.get(i));
        }


        return true;
    }

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Examples of org.apache.velocity.runtime.parser.node.ASTReference

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