Examples of com.espertech.esper.view.ViewCapDataWindowAccess

com.espertech.esper.view.ViewCapDataWindowAccess
Describes that we need random access into a data window by index.

        {
            throw new ExprValidationException("Previous function cannot be used in this context");
        }


        // Request a callback that provides the required access
        if (!validationContext.getViewResourceDelegate().requestCapability(streamNumber, new ViewCapDataWindowAccess(), this))
        {
            throw new ExprValidationException("Previous function requires a single data window view onto the stream");
        }
    }

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        {
            throw new ExprValidationException("Previous function cannot be used in this context");
        }


        // Request a callback that provides the required access
        if (!validationContext.getViewResourceDelegate().requestCapability(streamNumber, new ViewCapDataWindowAccess(), this))
        {
            throw new ExprValidationException("Previous function requires a single data window view onto the stream");
        }
    }

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Related Classes of com.espertech.esper.view.ViewCapDataWindowAccess

com.espertech.esper.epl.expression.ExprPreviousNode

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