Package ca.uqac.lif.cep.tuples

Class Where

  • All Implemented Interfaces:
    ca.uqac.lif.azrael.Printable, ca.uqac.lif.azrael.Readable, ca.uqac.lif.cep.Contextualizable, ca.uqac.lif.cep.Duplicable, ca.uqac.lif.cep.DuplicableProcessor
    public class Where
extends ca.uqac.lif.cep.SynchronousProcessor
    Filters a trace of AttributeGroup objects according to a Boolean function
    Author:
    Sylvain Hallé

    • Nested Class Summary

      • Nested classes/interfaces inherited from class ca.uqac.lif.cep.SynchronousProcessor

        ca.uqac.lif.cep.SynchronousProcessor.InputPushable, ca.uqac.lif.cep.SynchronousProcessor.OutputPullable

      • Nested classes/interfaces inherited from class ca.uqac.lif.cep.Processor

        ca.uqac.lif.cep.Processor.InternalProcessorState

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected ca.uqac.lif.cep.functions.Function m_condition
      The condition to evaluate.

      • Fields inherited from class ca.uqac.lif.cep.SynchronousProcessor

        m_inputPushables, m_outputPullables, m_tempQueue

      • Fields inherited from class ca.uqac.lif.cep.Processor

        m_context, m_eventTracker, m_hasBeenNotifiedOfEndOfTrace, m_inputArity, m_inputCount, m_inputPullables, m_inputQueues, m_notifiedEndOfTraceDownstream, m_outputArity, m_outputCount, m_outputPushables, m_outputQueues, MAX_PULL_RETRIES, s_versionString

    • Constructor Summary

      Constructors 
      Constructor Description
      Where​(ca.uqac.lif.cep.functions.Function condition)  

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      static void build​(java.util.ArrayDeque<java.lang.Object> stack)  
      protected boolean compute​(java.lang.Object[] inputs, java.util.Queue<java.lang.Object[]> outputs)  
      Where duplicate​(boolean with_state)  
      Where setCondition​(ca.uqac.lif.cep.functions.Function f)  

      • Methods inherited from class ca.uqac.lif.cep.SynchronousProcessor

        getPullableOutput, getPushableInput, setEventTracker

      • Methods inherited from class ca.uqac.lif.cep.Processor

        allNotifiedEndOfTrace, allNull, associateTo, associateToInput, associateToOutput, copyInputQueue, copyOutputQueue, duplicate, duplicateInto, equals, getAt, getContext, getContext, getEmptyQueue, getEventTracker, getId, getInputArity, getInputCount, getInputQueue, getInputType, getInputTypesFor, getLeaves, getLeaves, getOutputArity, getOutputCount, getOutputQueue, getOutputType, getPullableInput, getPullableOutput, getPushableInput, getPushableOutput, hashCode, leftShift, newContext, onEndOfTrace, or, or, print, printState, read, readState, reset, rightShift, setContext, setContext, setPullableInput, setPushableOutput, start, startAll, stop, stopAll

      • Methods inherited from class java.lang.Object

        clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • m_condition

        protected ca.uqac.lif.cep.functions.Function m_condition
        The condition to evaluate. Based on its return value on a given attribute group, the group will be returned or discarded.

    • Constructor Detail

      • Where

        public Where​(ca.uqac.lif.cep.functions.Function condition)

    • Method Detail

      • setCondition

        public Where setCondition​(ca.uqac.lif.cep.functions.Function f)

      • compute

        protected boolean compute​(java.lang.Object[] inputs,
                          java.util.Queue<java.lang.Object[]> outputs)
                   throws ca.uqac.lif.cep.ProcessorException
        Specified by:
        compute in class ca.uqac.lif.cep.SynchronousProcessor
        Throws:
        ca.uqac.lif.cep.ProcessorException

      • duplicate

        public Where duplicate​(boolean with_state)
        Specified by:
        duplicate in interface ca.uqac.lif.cep.Duplicable
        Specified by:
        duplicate in class ca.uqac.lif.cep.Processor

      • build

        public static void build​(java.util.ArrayDeque<java.lang.Object> stack)