Package com.espertech.esper.epl.spec

Examples of com.espertech.esper.epl.spec.CreateDataFlowDesc

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    public EPStatementStartMethodCreateGraph(StatementSpecCompiled statementSpec, EPServicesContext services, StatementContext statementContext) {
        super(statementSpec, services, statementContext);
    }

    public EPStatementStartResult startInternal(boolean isNewStatement, boolean isRecoveringStatement, boolean isRecoveringResilient) throws ExprValidationException, ViewProcessingException {
        final CreateDataFlowDesc createGraphDesc = statementSpec.getCreateGraphDesc();
        final AgentInstanceContext agentInstanceContext = getDefaultAgentInstanceContext();

        // define output event type
        String typeName = "EventType_Graph_" + createGraphDesc.getGraphName();
        EventType resultType = services.getEventAdapterService().createAnonymousMapType(typeName, Collections.<String, Object>emptyMap());

        services.getGraphService().addStartGraph(createGraphDesc, statementContext, services, agentInstanceContext, isNewStatement);

        EPStatementStopMethod stopMethod = new EPStatementStopMethod() {
            public void stop() {
                services.getGraphService().stopGraph(createGraphDesc.getGraphName());
            }
        };

        EPStatementDestroyMethod destroyMethod = new EPStatementDestroyMethod() {
            public void destroy() {
                services.getGraphService().removeGraph(createGraphDesc.getGraphName());
            }
        };
        return new EPStatementStartResult(new ZeroDepthStream(resultType), stopMethod, destroyMethod);
    }
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    public EPStatementStartMethodCreateGraph(StatementSpecCompiled statementSpec) {
        super(statementSpec);
    }

    public EPStatementStartResult startInternal(final EPServicesContext services, StatementContext statementContext, boolean isNewStatement, boolean isRecoveringStatement, boolean isRecoveringResilient) throws ExprValidationException, ViewProcessingException {
        final CreateDataFlowDesc createGraphDesc = statementSpec.getCreateGraphDesc();
        final AgentInstanceContext agentInstanceContext = getDefaultAgentInstanceContext(statementContext);

        // define output event type
        String typeName = "EventType_Graph_" + createGraphDesc.getGraphName();
        EventType resultType = services.getEventAdapterService().createAnonymousMapType(typeName, Collections.<String, Object>emptyMap());

        services.getDataFlowService().addStartGraph(createGraphDesc, statementContext, services, agentInstanceContext, isNewStatement);

        EPStatementStopMethod stopMethod = new EPStatementStopMethod() {
            public void stop() {
                services.getDataFlowService().stopGraph(createGraphDesc.getGraphName());
            }
        };

        EPStatementDestroyMethod destroyMethod = new EPStatementDestroyMethod() {
            public void destroy() {
                services.getDataFlowService().removeGraph(createGraphDesc.getGraphName());
            }
        };
        return new EPStatementStartResult(new ZeroDepthStreamNoIterate(resultType), stopMethod, destroyMethod);
    }
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    public EPStatementStartMethodCreateGraph(StatementSpecCompiled statementSpec) {
        super(statementSpec);
    }

    public EPStatementStartResult startInternal(final EPServicesContext services, StatementContext statementContext, boolean isNewStatement, boolean isRecoveringStatement, boolean isRecoveringResilient) throws ExprValidationException, ViewProcessingException {
        final CreateDataFlowDesc createGraphDesc = statementSpec.getCreateGraphDesc();
        final AgentInstanceContext agentInstanceContext = getDefaultAgentInstanceContext(statementContext);

        // define output event type
        String typeName = "EventType_Graph_" + createGraphDesc.getGraphName();
        EventType resultType = services.getEventAdapterService().createAnonymousMapType(typeName, Collections.<String, Object>emptyMap());

        services.getDataFlowService().addStartGraph(createGraphDesc, statementContext, services, agentInstanceContext, isNewStatement);

        EPStatementStopMethod stopMethod = new EPStatementStopMethod() {
            public void stop() {
                services.getDataFlowService().stopGraph(createGraphDesc.getGraphName());
            }
        };

        EPStatementDestroyMethod destroyMethod = new EPStatementDestroyMethod() {
            public void destroy() {
                services.getDataFlowService().removeGraph(createGraphDesc.getGraphName());
            }
        };
        return new EPStatementStartResult(new ZeroDepthStream(resultType), stopMethod, destroyMethod);
    }
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Related Classes of com.espertech.esper.epl.spec.CreateDataFlowDesc

  • com.espertech.esper.core.start.EPStatementStartMethodCreateGraph
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