Examples of org.datanucleus.query.expression.InvokeExpression

Package org.datanucleus.query.expression

Examples of org.datanucleus.query.expression.InvokeExpression

org.datanucleus.query.expression.InvokeExpression
Expression representing invocation of a method. This may be an aggregate in a result clause (like "count(this)"), or a method on a class, or a function. The "left" expression is what we are invoking on. This is typically a PrimaryExpression, or an InvokeExpression. This then allows chaining of invocations.

    } else if (expr instanceof PrimaryExpression) {
      // Recurse!
      addExpression(expr.getLeft(), qd);
      addExpression(expr.getRight(), qd);
    } else if (expr instanceof InvokeExpression) {
      InvokeExpression invocation = ((InvokeExpression) expr);
      if (invocation.getOperation().equals("contains") && invocation.getArguments().size() == 1) {
        handleContainsOperation(invocation, expr, qd);
      } else if (invocation.getOperation().equals("startsWith") && invocation.getArguments().size() == 1) {
        handleStartsWithOperation(invocation, expr, qd);
      } else if (invocation.getOperation().equals("matches") && invocation.getArguments().size() == 1) {
        handleMatchesOperation(invocation, expr, qd);
      } else {
        throw newUnsupportedQueryMethodException(invocation);
      }
    } else if (expr instanceof VariableExpression) {

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    } else if (right instanceof ParameterExpression) {
      value = getParameterValue(qd, (ParameterExpression) right);
    } else if (right instanceof DyadicExpression) {
      value = getValueFromDyadicExpression(right);
    } else if (right instanceof InvokeExpression) {
      InvokeExpression invoke = (InvokeExpression) right;
      // can't support CURRENT_TIME because we don't have a Time meaning.
      // maybe we can store Time fields as int64 without the temporal meaning?
      if (invoke.getOperation().equals("CURRENT_TIMESTAMP") ||
          invoke.getOperation().equals("CURRENT_DATE")) {
        value = NOW_PROVIDER.now();
      } else {
        // We don't support any other InvokeExpressions right now but we can at least
        // give a better error.
        throw newUnsupportedQueryMethodException((InvokeExpression) right);

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    ResultType resultType = null;
    if (compilation.getExprResult() != null) {
      // the only expression results we support are count() and PrimaryExpression
      for (Expression resultExpr : compilation.getExprResult()) {
        if (resultExpr instanceof InvokeExpression) {
          InvokeExpression invokeExpr = (InvokeExpression) resultExpr;
          if (!isCountOperation(invokeExpr.getOperation())) {
            Expression.Operator operator = new Expression.Operator(invokeExpr.getOperation(), 0);
            throw new UnsupportedDatastoreOperatorException(query.getSingleStringQuery(), operator);
          } else if (!projectionFields.isEmpty()) {
            throw newAggregateAndRowResultsException();
          } else {
            resultType = ResultType.COUNT;

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    } else if (expr instanceof PrimaryExpression) {
      // Recurse!
      addExpression(expr.getLeft(), qd);
      addExpression(expr.getRight(), qd);
    } else if (expr instanceof InvokeExpression) {
      InvokeExpression invocation = ((InvokeExpression) expr);
      if (invocation.getOperation().equals("contains") && invocation.getArguments().size() == 1) {
        handleContainsOperation(invocation, expr, qd);
      } else if (invocation.getOperation().equals("startsWith") && invocation.getArguments().size() == 1) {
        handleStartsWithOperation(invocation, expr, qd);
      } else if (invocation.getOperation().equals("matches") && invocation.getArguments().size() == 1) {
        handleMatchesOperation(invocation, expr, qd);
      } else {
        throw newUnsupportedQueryMethodException(invocation);
      }
    } else if (expr instanceof VariableExpression) {

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    } else if (right instanceof ParameterExpression) {
      value = getParameterValue(qd, (ParameterExpression) right);
    } else if (right instanceof DyadicExpression) {
      value = getValueFromDyadicExpression(right);
    } else if (right instanceof InvokeExpression) {
      InvokeExpression invoke = (InvokeExpression) right;
      // can't support CURRENT_TIME because we don't have a Time meaning.
      // maybe we can store Time fields as int64 without the temporal meaning?
      if (invoke.getOperation().equals("CURRENT_TIMESTAMP") ||
          invoke.getOperation().equals("CURRENT_DATE")) {
        value = NOW_PROVIDER.now();
      } else {
        // We don't support any other InvokeExpressions right now but we can at least
        // give a better error.
        throw newUnsupportedQueryMethodException((InvokeExpression) right);

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                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())
                {

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    ResultType resultType = null;
    if (compilation.getExprResult() != null) {
      // the only expression results we support are count() and PrimaryExpression
      for (Expression resultExpr : compilation.getExprResult()) {
        if (resultExpr instanceof InvokeExpression) {
          InvokeExpression invokeExpr = (InvokeExpression) resultExpr;
          if (!isCountOperation(invokeExpr.getOperation())) {
            Expression.Operator operator = new Expression.Operator(invokeExpr.getOperation(), 0);
            throw new UnsupportedDatastoreOperatorException(query.getSingleStringQuery(), operator);
          } else if (!projectionFields.isEmpty()) {
            throw newAggregateAndRowResultsException();
          } else {
            resultType = ResultType.COUNT;

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    } else if (expr instanceof PrimaryExpression) {
      // Recurse!
      addExpression(expr.getLeft(), qd);
      addExpression(expr.getRight(), qd);
    } else if (expr instanceof InvokeExpression) {
      InvokeExpression invocation = ((InvokeExpression) expr);
      if (invocation.getOperation().equals("contains") && invocation.getArguments().size() == 1) {
        handleContainsOperation(invocation, expr, qd);
      } else if (invocation.getOperation().equals("startsWith") && invocation.getArguments().size() == 1) {
        handleStartsWithOperation(invocation, expr, qd);
      } else if (invocation.getOperation().equals("matches") && invocation.getArguments().size() == 1) {
        handleMatchesOperation(invocation, expr, qd);
      } else {
        throw newUnsupportedQueryMethodException(invocation);
      }
    } else if (expr instanceof VariableExpression) {

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    } else if (right instanceof ParameterExpression) {
      value = getParameterValue(qd, (ParameterExpression) right);
    } else if (right instanceof DyadicExpression) {
      value = getValueFromDyadicExpression(right);
    } else if (right instanceof InvokeExpression) {
      InvokeExpression invoke = (InvokeExpression) right;
      // can't support CURRENT_TIME because we don't have a Time meaning.
      // maybe we can store Time fields as int64 without the temporal meaning?
      if (invoke.getOperation().equals("CURRENT_TIMESTAMP") ||
          invoke.getOperation().equals("CURRENT_DATE")) {
        value = NOW_PROVIDER.now();
      } else {
        // We don't support any other InvokeExpressions right now but we can at least
        // give a better error.
        throw newUnsupportedQueryMethodException((InvokeExpression) right);

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Related Classes of org.datanucleus.query.expression.InvokeExpression

com.google.appengine.datanucleus.query.DatastoreQuery

org.datanucleus.api.jpa.criteria.CriteriaQueryImpl

org.datanucleus.api.jpa.criteria.ExpressionImpl

org.datanucleus.query.compiler.JDOQLCompiler

org.datanucleus.query.JDOQLQueryHelper

org.datanucleus.query.QueryUtils

org.datanucleus.store.appengine.query.DatastoreQuery

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