Apache JMeter

## Package org.apache.jmeter.control

Interface Summary
Controller: This interface is used by JMeterThread in the following manner: while (running && (sampler = controller.next()) !
ReplaceableController: This interface represents a controller that gets replaced during the compilation phase of test execution in an arbitrary way.

Class Summary
ForeachController
GenericController: This class is the basis for all the controllers.
IfController: This is a Conditional Controller; it will execute the set of statements (samplers/controllers, etc) while the 'condition' is true.
IncludeController
InterleaveControl
LoopController: Class that implements the Loop Controller.
ModuleController: The goal of ModuleController is to add modularity to JMeter.
OnceOnlyController: Controller to run its children once per cycle.
RandomController
RandomOrderController: A controller that runs its children each at most once, but in a random order.
RunTime
SwitchController: Implements a controller which selects at most one of its children based on the condition value, which may be a number or a string.
ThroughputController: This class represents a controller that can control the number of times that it is executed, either by the total number of times the user wants the controller executed (BYNUMBER) or by the percentage of time it is called (BYPERCENT) The current implementation executes the first N samples (BYNUMBER) or the last N% of samples (BYPERCENT).
TransactionController: Transaction Controller to measure transaction times There are two different modes for the controller: - generate additional total sample after nested samples (as in JMeter 2.2) - generate parent sampler containing the nested samples
TransactionSampler: Transaction Sampler class to measure transaction times (not exposed a a GUI class, as it is only used internally)
WhileController

Exception Summary
NextIsNullException: Used by the Generic and Interleave controllers to signal the end of their samples

Apache JMeter

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