Package org.datanucleus.query.expression

Examples of org.datanucleus.query.expression.ParameterExpression

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     */
    public TypesafeQuery<T> setParameter(Expression paramExpr, Object value)
    {
        discardCompiled();

        ParameterExpression internalParamExpr = (ParameterExpression) ((ExpressionImpl)paramExpr).getQueryExpression();
        if (parameterExprByName == null ||
                (parameterExprByName != null && !parameterExprByName.containsKey(internalParamExpr.getAlias())))
        {
            throw new JDOUserException("Parameter with name " + internalParamExpr.getAlias() + " doesnt exist for this query");
        }

        if (parameterValuesByName == null)
        {
            parameterValuesByName = new HashMap<String, Object>();
        }
        parameterValuesByName.put(internalParamExpr.getAlias(), value);
        return this;
    }
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      if (param instanceof Literal) {
        String matchesExpr = getPrefixFromMatchesExpression(((Literal) param).getLiteral());
        addPrefix(leftExpr, new Literal(matchesExpr), matchesExpr, qd);
        return;
      } else if (param instanceof ParameterExpression) {
        ParameterExpression parameterExpression = (ParameterExpression) param;
        Object parameterValue = getParameterValue(qd.parameters, parameterExpression);
        String matchesExpr = getPrefixFromMatchesExpression(parameterValue);
        addPrefix(leftExpr, new Literal(matchesExpr), matchesExpr, qd);
        return;
      }
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      }

      // treat contains as equality since that's how the low-level api does checks on multi-value properties.
      addLeftPrimaryExpression(left, Expression.OP_EQ, param, qd);
    } else if (invokeExpr.getLeft() instanceof ParameterExpression && param instanceof PrimaryExpression) {
      ParameterExpression pe = (ParameterExpression) invokeExpr.getLeft();
      addLeftPrimaryExpression((PrimaryExpression) param, Expression.OP_EQ, pe, qd);
    } else {
      throw newUnsupportedQueryMethodException(invokeExpr);
    }
  }
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    if (expr.getLeft() instanceof PrimaryExpression && param instanceof Literal) {
      String matchesExpr = getPrefixFromMatchesExpression(((Literal) param).getLiteral());
      addPrefix((PrimaryExpression) expr.getLeft(), new Literal(matchesExpr), matchesExpr, qd);
    } else if (expr.getLeft() instanceof PrimaryExpression &&
               param instanceof ParameterExpression) {
      ParameterExpression parameterExpression = (ParameterExpression) param;
      Object parameterValue = getParameterValue(qd, parameterExpression);
      String matchesExpr = getPrefixFromMatchesExpression(parameterValue);
      addPrefix((PrimaryExpression) expr.getLeft(), new Literal(matchesExpr), matchesExpr, qd);
    } else {
      // We don't know what this is.
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      // TODO(maxr): Validate that the lhs of contains
      // is a Collection of some sort.
      addLeftPrimaryExpression(left, Expression.OP_EQ, param, qd);
    } else if (expr.getLeft() instanceof ParameterExpression &&
               param instanceof PrimaryExpression) {
      ParameterExpression pe = (ParameterExpression) expr.getLeft();
      addLeftPrimaryExpression((PrimaryExpression) param, Expression.OP_EQ, pe, qd);
    } else {
      throw newUnsupportedQueryMethodException(invocation);
    }
  }
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    if (expr.getLeft() instanceof PrimaryExpression && param instanceof Literal) {
      String matchesExpr = getPrefixFromMatchesExpression(((Literal) param).getLiteral());
      addPrefix((PrimaryExpression) expr.getLeft(), new Literal(matchesExpr), matchesExpr, qd);
    } else if (expr.getLeft() instanceof PrimaryExpression &&
               param instanceof ParameterExpression) {
      ParameterExpression parameterExpression = (ParameterExpression) param;
      Object parameterValue = getParameterValue(qd, parameterExpression);
      String matchesExpr = getPrefixFromMatchesExpression(parameterValue);
      addPrefix((PrimaryExpression) expr.getLeft(), new Literal(matchesExpr), matchesExpr, qd);
    } else {
      // We don't know what this is.
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      // TODO(maxr): Validate that the lhs of contains
      // is a Collection of some sort.
      addLeftPrimaryExpression(left, Expression.OP_EQ, param, qd);
    } else if (expr.getLeft() instanceof ParameterExpression &&
               param instanceof PrimaryExpression) {
      ParameterExpression pe = (ParameterExpression) expr.getLeft();
      addLeftPrimaryExpression((PrimaryExpression) param, Expression.OP_EQ, pe, qd);
    } else {
      throw newUnsupportedQueryMethodException(invocation);
    }
  }
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                    Map.Entry entry = (Map.Entry)it.next();
                    Object paramKey = entry.getKey();
                    Symbol sym = null;
                    if (paramKey instanceof Integer)
                    {
                        ParameterExpression expr = compilation.getParameterExpressionForPosition((Integer)paramKey);
                        if (expr != null)
                        {
                            sym = expr.getSymbol();
                        }
                    }
                    else
                    {
                        String paramName = (String)paramKey;
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    public static String getStringValueForExpression(Expression expr, Map parameters)
    {
        String paramValue = null;
        if (expr instanceof ParameterExpression)
        {
            ParameterExpression paramExpr = (ParameterExpression) expr;
            Object obj = getValueForParameterExpression(parameters, paramExpr);
            paramValue = getStringValue(obj);
        }
        else if (expr instanceof Literal)
        {
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            return (ParameterExpression)rootExpr;
        }

        if (rootExpr.getLeft() != null)
        {
            ParameterExpression paramExpr = getParameterExpressionForPosition(rootExpr.getLeft(), pos);
            if (paramExpr != null)
            {
                return paramExpr;
            }
        }
        if (rootExpr.getRight() != null)
        {
            ParameterExpression paramExpr = getParameterExpressionForPosition(rootExpr.getRight(), pos);
            if (paramExpr != null)
            {
                return paramExpr;
            }
        }
        if (rootExpr instanceof InvokeExpression)
        {
            InvokeExpression invokeExpr = (InvokeExpression)rootExpr;
            List<Expression> args = invokeExpr.getArguments();
            if (args != null)
            {
                Iterator<Expression> argIter = args.iterator();
                while (argIter.hasNext())
                {
                    ParameterExpression paramExpr = getParameterExpressionForPosition(argIter.next(), pos);
                    if (paramExpr != null)
                    {
                        return paramExpr;
                    }
                }
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Related Classes of org.datanucleus.query.expression.ParameterExpression

  • com.google.appengine.datanucleus.query.DatastoreQuery
  • org.datanucleus.api.jdo.query.JDOTypesafeQuery
  • org.datanucleus.query.compiler.QueryCompilation
  • org.datanucleus.query.evaluator.memory.AbsFunctionEvaluator
  • org.datanucleus.query.evaluator.memory.CollectionContainsMethodEvaluator
  • org.datanucleus.query.evaluator.memory.ConcatFunctionEvaluator
  • org.datanucleus.query.evaluator.memory.LengthFunctionEvaluator
  • org.datanucleus.query.evaluator.memory.LocateFunctionEvaluator
  • org.datanucleus.query.evaluator.memory.LowerFunctionEvaluator
  • org.datanucleus.query.evaluator.memory.MapContainsKeyMethodEvaluator
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