Examples of nexj.core.scripting.Pair

nexj.core.scripting.Pair
The Lisp Pair (cons). Also an expression node. The internal representation of the expression is the same as in Lisp, i.e. pairs with symbols for operators. This class provides convenience expression building API for use in Java code. Sample Usage Java-like syntax: (address.city like "A*") and (birthDate >= #1-Jan-1980#) Scheme syntax: (and (like? (@ address city) "A*") (>= birthDate (cast timestamp "1980-01-01 00:00:00"))) Internal representation: (and . ((like? . ((@ . (address . (city . '())) . ("A*" . '())))) . ((>= . (birthdate . ((cast . (timestamp . ("1980-01-01 00:00:00" . '())))) . '()))) Java API for Scheme expressions: Pair.attribute("city").from("address").like("A*") .and(Pair.attribute("birthDate").ge(Primitive.toTimestamp("1980-01-01 00:00:00"));

    * @return The shortest association path or null if no such path can be found.
    */
   private Pair findCommonAssocSuffix(Pair associationPath, Pair oldPath)
   {
      int nDiffLen = Pair.length(associationPath) - Pair.length(oldPath);
      Pair longerPath = (nDiffLen > 0) ? associationPath : oldPath;


      if (nDiffLen != 0)
      {
         CompositeMessagePart rootPart = ((CompositeMessagePart)longerPath.getHead()).getRoot();


         for (int i = Math.abs(nDiffLen); i > 1; i--, longerPath = longerPath.getNext()) ;


         CompositeMessagePart recursivePart = (CompositeMessagePart)longerPath.getHead();


         if (recursivePart instanceof CompositeMessagePartRef)
         {
            CompositeMessagePart refPart = ((CompositeMessagePartRef)recursivePart).getRefPart();


            if (refPart != rootPart)
            {
               return null;
            }
         }


         longerPath = longerPath.getNext();
      }


      if (!ObjUtil.equal((nDiffLen <= 0) ? associationPath : oldPath, longerPath))
      {
         return null;

View Full Code Here

    */
   private void addAssociationPath(MessagePart part, Pair associationPath, boolean bRoot)
   {
      if (associationPath != null)
      {
         Pair pathToAdd = associationPath;


         if (m_assocPathByDependentMsgPartMap == null)
         {
            m_assocPathByDependentMsgPartMap = new HashTab();
         }
         else
         {
            Pair oldPath = (Pair)m_assocPathByDependentMsgPartMap.get(part);


            if (oldPath != null)
            {
               pathToAdd = findCommonAssocSuffix(associationPath, oldPath);
            }

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    * @return The reverse association path for the dependentPart.
    * @param dependentPart The dependent message part.
    */
   public Pair getReverseAssociationPath(MessagePart dependentPart)
   {
      Pair associationPath = (dependentPart != null && m_assocPathByDependentMsgPartMap != null) ?
         (Pair)m_assocPathByDependentMsgPartMap.get(dependentPart) : null;


      Pair reverseAssocPath = null;


      if (associationPath != null)
      {
         for (; associationPath != null; associationPath = associationPath.getNext())
         {
            Symbol partSymbol = ((ObjectMessagePartMapping)((MessagePart)associationPath.getHead()).getMapping())
               .getAttribute().getSymbol();


            reverseAssocPath = new Pair(partSymbol, reverseAssocPath);
         }


         reverseAssocPath = new Pair(Symbol.ATAT, new Pair(getMetaclass().getSymbol(),
            Pair.nreverse(reverseAssocPath)));
      }


      return reverseAssocPath;
   }

View Full Code Here

            CompositeMessagePart part = (CompositeMessagePart)msgPart;
            ObjectMessagePartMapping partMapping = (ObjectMessagePartMapping)part.getMapping();


            if (partMapping.getAssociationCode() != null)
            {
               Pair associationPath = new Pair(part);
               CompositeMessagePart rootPart = part.getRoot();


               for (MessagePart parentMsgPart = part.getParent(); parentMsgPart != null; parentMsgPart = parentMsgPart.getParent())
               {
                  ObjectMessagePartMapping parentMsgPartMapping = (ObjectMessagePartMapping)parentMsgPart.getMapping();
                  boolean bRoot = (parentMsgPart == rootPart);


                  if (parentMsgPartMapping.isDelete() || bRoot)
                  {
                     parentMsgPartMapping.addAssociationPath(part, associationPath, bRoot);
                  }


                  if (parentMsgPartMapping.getAttribute() != null)
                  {
                     associationPath = new Pair(parentMsgPart, associationPath);
                  }
               }
            }


            if (currPathSet.add(part))

View Full Code Here

         }


         // Build the dependent message parts map for the referenced message.
         mapping.buildDependentMsgPartsMap(ref.getRefPart());


         Pair localAssocPath = null;


         // Copy the dependency list from the referenced part to the referee while appending to the association paths.
         for (CompositeMessagePart partToResolve = ref; partToResolve != null; partToResolve = partToResolve.getParent())
         {
            ObjectMessagePartMapping partParentMapping = (ObjectMessagePartMapping)partToResolve.getMapping();


            if (mapping.getDependentMessagePartsCount() > 0)
            {
               for (Lookup.Iterator itr = mapping.getDependentMessagePartsIterator(); itr.hasNext();)
               {
                  CompositeMessagePart part = (CompositeMessagePart)itr.next();
                  boolean bRoot = (partToResolve == rootPart);


                  // skip itself, however add to root even if the delete flag is not set on it
                  if (partToResolve != part && (partParentMapping.isDelete() || bRoot))
                  {
                     partParentMapping.addAssociationPath(part, Pair.append(localAssocPath, (Pair)itr.getValue()),
                        bRoot);
                  }
               }
            }


            if (partParentMapping != null && partParentMapping.getAttribute() != null)   // skip root
            {
               localAssocPath = new Pair(partToResolve, localAssocPath);
            }
         }
      }
   }

View Full Code Here

   public void compile(Machine machine)
   {
      if (m_body != null)
      {
         m_function = new Compiler().compile(
            new Pair(Symbol.LAMBDA, new Pair(null, m_body)),
            m_posMap, "upgrade:" + m_upgrade.getName() + '$' + m_sName, machine, false);
         m_body = null;
      }
   }

View Full Code Here

         return (Message)m_msgMap.get(toKey(typeDef));
      }


      protected static Object toKey(XSElementDeclaration elemDecl)
      {
         return new Pair(elemDecl.getNamespace(), elemDecl.getName());
      }

View Full Code Here

         {
            return typeDef;
         }
         else
         {
            return new Pair(typeDef.getNamespace(), typeDef.getName());
         }
      }

View Full Code Here

      {
         logQuery(Logger.DEBUG);
      }


      long lStartTime = getCurrentTime();
      Pair readClosePair = (Pair)machine.invoke(readMapping.getFunction(), m_readArgArray);


      logDuration(lStartTime, true);
      m_resultIterator = getIterator(readClosePair.getHead(), mapping.getMetaclass());
      m_closeFunction = (Function)readClosePair.getTail();
   }

View Full Code Here

    */
   public void generate(Machine machine)
   {
      verifyNotReadOnly();


      Pair assoc = null;


      for (int i = 0, n = getAssociationCount(); i < n; ++i)
      {
         assoc = new ConstPair(getAssociation(i).getReverse().getSymbol(), assoc);
      }


      m_event.addFlowAssoc(assoc);


      ((Workflow)m_activity.getFlow()).addFunction(this, assoc,
         m_event, new Pair(this, new Pair(m_condition, getBody())));


      setBody(null);
   }

View Full Code Here

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