Examples of FunctionReference

org.apache.chemistry.opencmis.server.support.query.FunctionReference
org.exist.xquery.value.FunctionReference
Represents a function item, i.e. a reference to a function that can be called dynamically. @author wolf
org.springframework.expression.spel.ast.FunctionReference
A function reference is of the form "#someFunction(a,b,c)". Functions may be defined in the context prior to the expression being evaluated or within the expression itself using a lambda function definition. For example: Lambda function definition in an expression: "(#max = {|x,y|$x>$y?$x:$y};max(2,3))" Calling context defined function: "#isEven(37)". Functions may also be static java methods, registered in the context prior to invocation of the expression.
Functions are very simplistic, the arguments are not part of the definition (right now), so the names must be unique. @author Andy Clement @since 3.0

Examples of org.exist.xquery.value.FunctionReference

    String jid = args[1].itemAt(0).getStringValue();
    
        if(!(args[2].itemAt(0) instanceof FunctionReference))
            throw new XPathException("No chat listener function provided.");
        
        FunctionReference chatListenerFunctionRef = (FunctionReference)args[2].itemAt(0);
        
        FunctionSignature chatListenerFunctionSig = chatListenerFunctionRef.getSignature();
        if(chatListenerFunctionSig.getArgumentCount() < 3)
            throw new XPathException("Chat listener function must take at least 3 arguments.");
        chatListenerFunctionRef.setContext(context.copyContext());
        
        Sequence listenerParam = args[3];
        
        long chatHandle = XMPPModule.getHandle();

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Examples of org.exist.xquery.value.FunctionReference


    public Sequence eval(Sequence[] args, Sequence contextSequence) throws XPathException {
        if (args[0].isEmpty())
            return Sequence.EMPTY_SEQUENCE;


        FunctionReference func = (FunctionReference) args[1].itemAt(0);


        NGramIndexWorker index = (NGramIndexWorker) context.getBroker().getIndexController().getWorkerByIndexId(NGramIndex.ID);
        MemTreeBuilder builder = context.getDocumentBuilder();
        DocumentBuilderReceiver docBuilder = new DocumentBuilderReceiver(builder);
        MatchCallback matchCb = new MatchCallback(func, docBuilder);

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Examples of org.exist.xquery.value.FunctionReference

            processMonitor = broker.getBrokerPool().getProcessMonitor();
            xqueryContext.getProfiler().traceQueryStart();
            processMonitor.queryStarted(xqueryContext.getWatchDog());
            
            //create a function call
            final FunctionReference fnRef = new FunctionReference(new FunctionCall(xqueryContext, fn));
            
            //convert the arguments
            final org.exist.xquery.value.Sequence[] fnArgs = convertToExistFunctionArguments(xqueryContext, fn, arguments);
            
            //execute the function call
            fnRef.analyze(new AnalyzeContextInfo());
            final org.exist.xquery.value.Sequence result = fnRef.evalFunction(null, null, fnArgs);
            
            return new SequenceAdapter(result);
        } catch(final URISyntaxException use) {
            throw new RestXqServiceException(use.getMessage(), use);
        } catch(final PermissionDeniedException pde) {

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Examples of org.exist.xquery.value.FunctionReference

  @Override
  public Sequence eval(Sequence[] args, Sequence contextSequence)
      throws XPathException {
        Sequence result = new ValueSequence();
        if (isCalledAs("map")) {
            final FunctionReference ref = (FunctionReference) args[0].itemAt(0);
            ref.analyze(cachedContextInfo);
            for (final SequenceIterator i = args[1].iterate(); i.hasNext(); ) {
                final Item item = i.nextItem();
                final Sequence r = ref.evalFunction(contextSequence, null, new Sequence[]{item.toSequence()});
                result.addAll(r);
            }
        } else if (isCalledAs("for-each")) {
            final FunctionReference ref = (FunctionReference) args[1].itemAt(0);
            ref.analyze(cachedContextInfo);
            for (final SequenceIterator i = args[0].iterate(); i.hasNext(); ) {
                final Item item = i.nextItem();
                final Sequence r = ref.evalFunction(contextSequence, null, new Sequence[]{item.toSequence()});
                result.addAll(r);
            }
        } else if (isCalledAs("filter")) {
            FunctionReference ref;
            Sequence seq;
            // Hack: switch parameters for backwards compatibility
            if (Type.subTypeOf(args[1].getItemType(), Type.FUNCTION_REFERENCE)) {
                ref = (FunctionReference) args[1].itemAt(0);
                seq = args[0];
            } else {
                ref = (FunctionReference) args[0].itemAt(0);
                seq = args[1];
            }


            ref.analyze(cachedContextInfo);
          for (final SequenceIterator i = seq.iterate(); i.hasNext(); ) {
            final Item item = i.nextItem();
            final Sequence r = ref.evalFunction(contextSequence, null, new Sequence[] { item.toSequence() });
            if (r.effectiveBooleanValue())
              {result.add(item);}
          }
        } else if (isCalledAs("fold-left")) {
            final FunctionReference ref = (FunctionReference) args[2].itemAt(0);
            ref.analyze(cachedContextInfo);
          Sequence zero = args[1];
          Sequence input = args[0];
          while (!input.isEmpty()) {
            final SequenceIterator i = input.iterate();
            zero = ref.evalFunction(contextSequence, null, new Sequence[] { zero, i.nextItem().toSequence() });
            ValueSequence tail = new ValueSequence();
            while (i.hasNext()) {
              tail.add(i.nextItem());
            }
            input = tail;
          }
          result = zero;
        } else if (isCalledAs("fold-right")) {
            final FunctionReference ref = (FunctionReference) args[2].itemAt(0);
            ref.analyze(cachedContextInfo);
          final Sequence zero = args[1];
          final Sequence input = args[0];
          result = foldRight(ref, zero, input, contextSequence);
        } else if (isCalledAs("map-pairs")) {
            final FunctionReference ref = (FunctionReference) args[0];
            ref.analyze(cachedContextInfo);
          final SequenceIterator i1 = args[1].iterate();
          final SequenceIterator i2 = args[2].iterate();
          while (i1.hasNext() && i2.hasNext()) {
            final Sequence r = ref.evalFunction(contextSequence, null, 
                new Sequence[] { i1.nextItem().toSequence(), i2.nextItem().toSequence() });
            result.addAll(r);
          }
        } else if (isCalledAs("for-each-pair")) {
            final FunctionReference ref = (FunctionReference) args[2].itemAt(0);
            ref.analyze(cachedContextInfo);
            final SequenceIterator i1 = args[0].iterate();
            final SequenceIterator i2 = args[1].iterate();
            while (i1.hasNext() && i2.hasNext()) {
                final Sequence r = ref.evalFunction(contextSequence, null,
                        new Sequence[] { i1.nextItem().toSequence(), i2.nextItem().toSequence() });
                result.addAll(r);
            }
        }
    return result;

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Examples of org.exist.xquery.value.FunctionReference

                        // return empty sequence for all "function not found" related errors
                        return Sequence.EMPTY_SEQUENCE;
                    }
                    throw e;
                }
          return call == null ? Sequence.EMPTY_SEQUENCE : new FunctionReference(call);
      } else if (isCalledAs("function-name")) {
        final FunctionReference ref = (FunctionReference) args[0].itemAt(0);
        final QName qname = ref.getSignature().getName();
        if (qname == null || qname == InlineFunction.INLINE_FUNCTION_QNAME)
          {return Sequence.EMPTY_SEQUENCE;}
        else
          {return new QNameValue(context, qname);}
      } else {
        // isCalledAs("function-arity")
        final FunctionReference ref = (FunctionReference) args[0].itemAt(0);
        return new IntegerValue(ref.getSignature().getArgumentCount());
      }
    } catch (final Exception e) {
      if (e instanceof XPathException)
        {throw (XPathException)e;}
      else

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Examples of org.exist.xquery.value.FunctionReference

    public Sequence eval(Sequence[] args, Sequence contextSequence)
            throws XPathException {
        if (args[0].isEmpty())
            {return Sequence.EMPTY_SEQUENCE;}
        
        final FunctionReference call = (FunctionReference) args[2].itemAt(0);
        
        FunctionReference resultCallback = null;
        if (getArgumentCount() == 5) {
            resultCallback = (FunctionReference) args[3].itemAt(0);
        }
        
        final int width = ((IntegerValue)args[1].itemAt(0)).getInt();

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Examples of org.exist.xquery.value.FunctionReference

        if(arg0.getCardinality() != Cardinality.EXACTLY_ONE)
            {throw new XPathException(this, "Expected exactly one item for first argument");}
        final Item item0 = arg0.itemAt(0);
        if(item0.getType() != Type.FUNCTION_REFERENCE)
            {throw new XPathException(this, "Type error: expected function, got " + Type.getTypeName(item0.getType()));}
        final FunctionReference ref = (FunctionReference)item0;
        
        // pass the remaining parameters to the function call
        final List<Expression> params = new ArrayList<Expression>(getArgumentCount() - 1);
        for(int i = 1; i < getArgumentCount(); i++) {
            params.add(getArgument(i));
        }
        ref.setArguments(params);
        ref.analyze(new AnalyzeContextInfo(this, 0));
        // Evaluate the function
        return ref.eval(contextSequence);
    }

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Examples of org.exist.xquery.value.FunctionReference

    public Sequence eval(Sequence[] args, Sequence contextSequence)
            throws XPathException {
        if (args[0].isEmpty())
            {return Sequence.EMPTY_SEQUENCE;}
        
        final FunctionReference func = (FunctionReference) args[1].itemAt(0);
        
        context.pushDocumentContext();
        
        final MemTreeBuilder builder = context.getDocumentBuilder();
        final ValueSequence result = new ValueSequence();

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Examples of org.exist.xquery.value.FunctionReference

                ". Expression: " + ExpressionDumper.dump(functionExpr));}
        final Item item0 = funcSeq.itemAt(0);
        if (!Type.subTypeOf(item0.getType(), Type.FUNCTION_REFERENCE))
            {throw new XPathException(this, ErrorCodes.XPTY0004,
                "Type error: expected function, got " + Type.getTypeName(item0.getType()));}
        final FunctionReference ref = (FunctionReference)item0;
        // if the call is a partial application, create a new function
        if (isPartial) {
          try {
            final FunctionCall call = ref.getCall();
            call.setArguments(arguments);
            final PartialFunctionApplication partialApp = new PartialFunctionApplication(context, call);
                partialApp.analyze(new AnalyzeContextInfo(cachedContextInfo));
            return partialApp.eval(contextSequence, contextItem);
          } catch (final XPathException e) {
        e.setLocation(line, column, getSource());
        throw e;
          }
        } else {
          ref.setArguments(arguments);
            // need to create a new AnalyzeContextInfo to avoid memory leak
            // cachedContextInfo will stay in memory
          ref.analyze(new AnalyzeContextInfo(cachedContextInfo));
          // Evaluate the function
          final Sequence result = ref.eval(contextSequence);
            ref.resetState(false);
            return result;
        }
    }

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Examples of org.springframework.expression.spel.ast.FunctionReference

    SpelNodeImpl[] args = maybeEatMethodArgs();
    if (args==null) {
      push(new VariableReference(functionOrVariableName.data,toPos(t.startpos,functionOrVariableName.endpos)));
      return true;
    } else {
      push(new FunctionReference(functionOrVariableName.data,toPos(t.startpos,functionOrVariableName.endpos),args));
      return true;
    }
  }

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