com.ibm.streams.operator.control.variable

Interface LongControlVariableMXBean

  • All Superinterfaces:
    PersistentControlMBean
    All Known Implementing Classes:
    LongControlVariable

    public interface LongControlVariableMXBean
extends PersistentControlMBean
    MXBean representing a long control variable.
    This MXBean implements PersistentControlMBean to persist its value across Job Control Plane restarts.

    An attribute change notification (javax.management.AttributeChangeNotification) is sent when the value of this control variable changes. The attribute name is Value.

    It is recommended operators use createLongControlVariable instead of manually creating and registering LongControlVariable MBeans. ControlVariableAccessor provides simple support of a long control variable, hiding all the JMX interactions with the Job Control Plane.

    Since:
    InfoSphere® Streams Version 4.0

    • Method Detail

      • getName

        java.lang.String getName()
        Get the name of this control variable.
        Returns:
        the name of this control variable

      • getValue

        long getValue()
        Get the value of this control variable.
        Returns:
        the value of this control variable.

      • setValue

        void setValue(long value)
              throws java.io.IOException
        Set the value of this control variable. If the value changes an AttributeChangeNotification is sent using attribute name Value.
        Parameters:
        value - New value for this control variable.
        Throws:
        java.io.IOException - Exception persisting the control variable in the Job Control Plane.
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