Package com.espertech.esper.client

Examples of com.espertech.esper.client.EPStatementException

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        {
            String windowName = ((OnTriggerWindowDesc) optOnTriggerDesc).getWindowName();
            defaultStatementAgentInstanceLock = engineServices.getNamedWindowService().getNamedWindowLock(windowName);
            if (defaultStatementAgentInstanceLock == null)
            {
                throw new EPStatementException("Named window '" + windowName + "' has not been declared", expression);
            }
        }
        // For creating a named window, save the lock for use with on-delete/on-merge/on-update etc. statements
        else if (optCreateWindowDesc != null)
        {
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                }
            }
            catch (ExprValidationException ex)
            {
                log.debug(".validateNodes Validation exception for filter=" + optionalFilterNode.toExpressionString(), ex);
                throw new EPStatementException("Error validating expression: " + ex.getMessage(), ex, statementContext.getExpression());
            }
        }

        if ((statementSpec.getOutputLimitSpec() != null) && ((statementSpec.getOutputLimitSpec().getWhenExpressionNode() != null) || (statementSpec.getOutputLimitSpec().getAndAfterTerminateExpr() != null)))
        {
            // Validate where clause, initializing nodes to the stream ids used
            try
            {
                EventType outputLimitType = OutputConditionExpressionFactory.getBuiltInEventType(statementContext.getEventAdapterService());
                StreamTypeService typeServiceOutputWhen = new StreamTypeServiceImpl(new EventType[] {outputLimitType}, new String[]{null}, new boolean[] {true}, statementContext.getEngineURI(), false);
                ExprValidationContext validationContext = new ExprValidationContext(typeServiceOutputWhen, methodResolutionService, null, statementContext.getSchedulingService(), statementContext.getVariableService(), evaluatorContextStmt, statementContext.getEventAdapterService(), statementContext.getStatementName(), statementContext.getStatementId(), statementContext.getAnnotations(), statementContext.getContextDescriptor());

                ExprNode outputLimitWhenNode = statementSpec.getOutputLimitSpec().getWhenExpressionNode();
                if (outputLimitWhenNode != null) {
                    outputLimitWhenNode = ExprNodeUtility.getValidatedSubtree(outputLimitWhenNode, validationContext);
                    statementSpec.getOutputLimitSpec().setWhenExpressionNode(outputLimitWhenNode);

                    if (JavaClassHelper.getBoxedType(outputLimitWhenNode.getExprEvaluator().getType()) != Boolean.class) {
                        throw new ExprValidationException("The when-trigger expression in the OUTPUT WHEN clause must return a boolean-type value");
                    }
                    EPStatementStartMethodHelperValidate.validateNoAggregations(outputLimitWhenNode, "An aggregate function may not appear in a OUTPUT LIMIT clause");
                }

                // validate and-terminate expression if provided
                if (statementSpec.getOutputLimitSpec().getAndAfterTerminateExpr() != null) {
                    if (statementSpec.getOutputLimitSpec().getRateType() != OutputLimitRateType.WHEN_EXPRESSION && statementSpec.getOutputLimitSpec().getRateType() != OutputLimitRateType.TERM) {
                        throw new ExprValidationException("A terminated-and expression must be used with the OUTPUT WHEN clause");
                    }
                    ExprNode validated = ExprNodeUtility.getValidatedSubtree(statementSpec.getOutputLimitSpec().getAndAfterTerminateExpr(), validationContext);
                    statementSpec.getOutputLimitSpec().setAndAfterTerminateExpr(validated);

                    if (JavaClassHelper.getBoxedType(validated.getExprEvaluator().getType()) != Boolean.class) {
                        throw new ExprValidationException("The terminated-and expression must return a boolean-type value");
                    }
                    EPStatementStartMethodHelperValidate.validateNoAggregations(validated, "An aggregate function may not appear in a terminated-and clause");
                }

                // validate then-expression
                validateThenSetAssignments(statementSpec.getOutputLimitSpec().getThenExpressions(), validationContext);

                // validate after-terminated then-expression
                validateThenSetAssignments(statementSpec.getOutputLimitSpec().getAndAfterTerminateThenExpressions(), validationContext);
            }
            catch (ExprValidationException ex)
            {
                throw new EPStatementException("Error validating expression: " + ex.getMessage(), statementContext.getExpression());
            }
        }

        for (int outerJoinCount = 0; outerJoinCount < statementSpec.getOuterJoinDescList().length; outerJoinCount++)
        {
            OuterJoinDesc outerJoinDesc = statementSpec.getOuterJoinDescList()[outerJoinCount];

            // validate on-expression nodes, if provided
            if (outerJoinDesc.getOptLeftNode() != null) {
                UniformPair<Integer> streamIdPair = validateOuterJoinPropertyPair(statementContext, outerJoinDesc.getOptLeftNode(), outerJoinDesc.getOptRightNode(), outerJoinCount,
                        typeService, viewResourceDelegate);

                if (outerJoinDesc.getAdditionalLeftNodes() != null)
                {
                    Set<Integer> streamSet = new HashSet<Integer>();
                    streamSet.add(streamIdPair.getFirst());
                    streamSet.add(streamIdPair.getSecond());
                    for (int i = 0; i < outerJoinDesc.getAdditionalLeftNodes().length; i++)
                    {
                        UniformPair<Integer> streamIdPairAdd = validateOuterJoinPropertyPair(statementContext, outerJoinDesc.getAdditionalLeftNodes()[i], outerJoinDesc.getAdditionalRightNodes()[i], outerJoinCount,
                                typeService, viewResourceDelegate);

                        // make sure all additional properties point to the same two streams
                        if ((!streamSet.contains(streamIdPairAdd.getFirst()) || (!streamSet.contains(streamIdPairAdd.getSecond()))))
                        {
                            String message = "Outer join ON-clause columns must refer to properties of the same joined streams" +
                                    " when using multiple columns in the on-clause";
                            throw new EPStatementException("Error validating expression: " + message, statementContext.getExpression());
                        }

                    }
                }
            }
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            ExprNodeUtility.getValidatedSubtree(equalsNode, validationContext);
        }
        catch (ExprValidationException ex)
        {
            log.debug("Validation exception for outer join node=" + equalsNode.toExpressionString(), ex);
            throw new EPStatementException("Error validating expression: " + ex.getMessage(), statementContext.getExpression());
        }

        // Make sure we have left-hand-side and right-hand-side refering to different streams
        int streamIdLeft = leftNode.getStreamId();
        int streamIdRight = rightNode.getStreamId();
        if (streamIdLeft == streamIdRight)
        {
            String message = "Outer join ON-clause cannot refer to properties of the same stream";
            throw new EPStatementException("Error validating expression: " + message, statementContext.getExpression());
        }

        // Make sure one of the properties refers to the acutual stream currently being joined
        int expectedStreamJoined = outerJoinCount + 1;
        if ((streamIdLeft != expectedStreamJoined) && (streamIdRight != expectedStreamJoined))
        {
            String message = "Outer join ON-clause must refer to at least one property of the joined stream" +
                    " for stream " + expectedStreamJoined;
            throw new EPStatementException("Error validating expression: " + message, statementContext.getExpression());
        }

        // Make sure neither of the streams refer to a 'future' stream
        String badPropertyName = null;
        if (streamIdLeft > outerJoinCount + 1)
        {
            badPropertyName = leftNode.getResolvedPropertyName();
        }
        if (streamIdRight > outerJoinCount + 1)
        {
            badPropertyName = rightNode.getResolvedPropertyName();
        }
        if (badPropertyName != null)
        {
            String message = "Outer join ON-clause invalid scope for property" +
                    " '" + badPropertyName + "', expecting the current or a prior stream scope";
            throw new EPStatementException("Error validating expression: " + message, statementContext.getExpression());
        }

        return new UniformPair<Integer>(streamIdLeft, streamIdRight);
    }
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        {
            String windowName = ((OnTriggerWindowDesc) optOnTriggerDesc).getWindowName();
            defaultStatementAgentInstanceLock = engineServices.getNamedWindowService().getNamedWindowLock(windowName);
            if (defaultStatementAgentInstanceLock == null)
            {
                throw new EPStatementException("Named window '" + windowName + "' has not been declared", expression);
            }
        }
        // For creating a named window, save the lock for use with on-delete/on-merge/on-update etc. statements
        else if (optCreateWindowDesc != null)
        {
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Related Classes of com.espertech.esper.client.EPStatementException

  • com.espertech.esper.core.EPAdministratorHelper
  • com.espertech.esper.core.EPPreparedQueryImpl
  • com.espertech.esper.core.service.EPAdministratorHelper
  • com.espertech.esper.core.service.EPPreparedQueryImpl
  • com.espertech.esper.core.service.StatementContextFactoryDefault
  • com.espertech.esper.core.start.EPStatementStartMethodHelperValidate
  • com.espertech.esper.core.StatementContextFactoryDefault
  • com.espertech.esper.epl.annotation.AnnotationUtil
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