Examples of nexj.core.persistence.operator.MultiArgOperator

nexj.core.persistence.operator.MultiArgOperator
Expression node with multiple arguments.

            return null;
         }


         args = args.getNext();


         MultiArgOperator logical = null;


         for (;;)
         {
            if (!op.setRight(query.createOperator(key, args.getHead(), nOutput)))
            {
               return null;
            }


            op.initialize();


            if (args.getTail() == null)
            {
               break;
            }


            if (logical == null)
            {
               logical = createLogical(query);
               logical.addOperand(op);
            }


            ComparisonOperator right = create(query);


            if (!right.setLeft(query.createOperator(key, args.getHead(), nOutput)))
            {
               return null;
            }


            logical.addOperand(right);
            op = right;
            args = args.getNext();
         }


         if (logical != null)

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      /**
       * @see nexj.core.persistence.Query.OperatorFactory#create(nexj.core.scripting.Pair, nexj.core.persistence.Query, Object, byte)
       */
      public Operator create(Pair args, Query query, Object key, byte nOutput)
      {
         MultiArgOperator op = create(query);


         for (; args != null; args = args.getNext())
         {
            if (op.addOperand(query.createOperator(key, args.getHead(), nOutput)) < 0)
            {
               return null;
            }
         }

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      /**
       * @see nexj.core.persistence.sql.SQLGenerator.OperatorAppender#appendOperator(java.lang.StringBuffer, nexj.core.persistence.Operator, nexj.core.persistence.sql.SQLGenerator)
       */
      public void appendOperator(StringBuffer buf, Operator op, SQLGenerator gen)
      {
         MultiArgOperator multiOp = (MultiArgOperator)op;
         int nCount = multiOp.getOperandCount();


         for (int i = 0; i < nCount; ++i)
         {
            if (i > 0)
            {
               buf.append(m_sOperator);
            }


            gen.appendOperator(buf, multiOp.getOperand(i));
         }
      }

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Related Classes of nexj.core.persistence.operator.MultiArgOperator

nexj.core.persistence.Operator

nexj.core.persistence.Query$ComparisonOperatorFactory

nexj.core.persistence.Query$MultiArgOperatorFactory

nexj.core.persistence.sql.SQLGenerator$MultiArgOperatorAppender

nexj.core.scripting.Pair

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