org.apache.uima.collection.metadata

## Interface CpeCasProcessors

- All Superinterfaces:
    Cloneable, MetaDataObject, Serializable, XMLizable

      public interface CpeCasProcessors
      extends MetaDataObject

  An object that holds configuration that is part of the CPE descriptor. It provides the means of configuring the CPE Processing Pipeline and to tweak performance charactristics of the CPE. It contains a list of CasProcessors that will be strung together into a pipeline by the CPE.

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `addCpeCasProcessor(CpeCasProcessor aCasProcessor)` Appends new CasProcessor to existing list of CasProcessors
    `void` | `addCpeCasProcessor(CpeCasProcessor aCasProcessor, int aInsertPosition)` Inserts a new CasProcessor at an indicated position.
    `CpeCasProcessor[]` | `getAllCpeCasProcessors()` Returns ALL `CpeCasProcessor` objects in processing pipeline.
    `int` | `getCasPoolSize()`
    `int` | `getConcurrentPUCount()` Returns number of ProcessingUnits.
    `CpeCasProcessor` | `getCpeCasProcessor(int aPosition)` Returns `CpeCasProcessor` found at given position.
    `boolean` | `getDropCasOnException()`
    `int` | `getInputQueueSize()` Returns size of the InputQueue.
    `int` | `getOutputQueueSize()` Returns the size of the OutputQueue.
    `void` | `removeAllCpeCasProcessors()` Removes ALL `CpeCasProcessor` objects from processing pipeline.
    `void` | `removeCpeCasProcessor(int aPosition)` Removes `CpeCasProcessor` object from processing pipeline from a given position.
    `void` | `setConcurrentPUCount(int aConcurrentPUCount)` Sets ProcessingUnit replication.
    `void` | `setInputQueueSize(int aOutputQueueSize)` Sets the size of the InputQueue.
    `void` | `setOutputQueueSize(int aOutputQueueSize)` Sets the size of the OutputQueue.
    `void` | `setPoolSize(int aPoolSize)`

    - ### Methods inherited from interface org.apache.uima.resource.metadata.MetaDataObject

      `clone, equals, getAttributeValue, getSourceUrl, getSourceUrlString, isModifiable, listAttributes, setAttributeValue, setSourceUrl`

    - ### Methods inherited from interface org.apache.uima.util.XMLizable

      `buildFromXMLElement, buildFromXMLElement, toXML, toXML, toXML, toXML`

- - ### Method Detail

    - #### setOutputQueueSize

          void setOutputQueueSize(int aOutputQueueSize)
                           throws CpeDescriptorException

      Sets the size of the OutputQueue. This queue is shared among Processing Units and CasConsumers and contains bundles of CAS. Processing Units add bundles to the queue while CasConsumers consume them. The best size for this queue is determined by overall performance of the ProcessingUnit ( how fast it deposits bundles onto the queue) and memory availability. The larger the queue the more bundles (hence memory) is used.
      Parameters:
        `aOutputQueueSize` - - Output queue size
      Throws:
        `CpeDescriptorException` - tbd

    - #### getOutputQueueSize

          int getOutputQueueSize()

      Returns the size of the OutputQueue. This queue is shared among Processing Units and CasConsumers and contains bundles of CAS. Processing Units add bundles to the queue while CasConsumers consume them. The best size for this queue is determined by overall performance of the ProcessingUnit ( how fast it deposits bundles onto the queue) and memory availability. The larger the queue the more bundles (hence memory) is used.
      Returns:
        - output queue size

    - #### setInputQueueSize

          void setInputQueueSize(int aOutputQueueSize)
                          throws CpeDescriptorException

      Sets the size of the InputQueue. This queue is shared among CollectionReader and Processing Units and contains bundles of CAS. CollectionReader adds bundles to the queue while Processing Unit consume them. The best size for this queue is determined by overall performance of the ProcessingUnit ( how fast it takes bundles off the queue) and memory availability. The larger the queue the more bundles (hence memory) is used.
      Parameters:
        `aOutputQueueSize` - - queue size
      Throws:
        `CpeDescriptorException` - tbd

    - #### getInputQueueSize

          int getInputQueueSize()

      Returns size of the InputQueue. This queue is shared among CollectionReader and Processing Units and contains bundles of CAS. CollectionReader adds bundles to the queue while Processing Unit consume them. The best size for this queue is determined by overall performance of the ProcessingUnit ( how fast it takes bundles off the queue) and memory availability. The larger the queue the more bundles (hence memory) is used.
      Returns:
        - queue size

    - #### setConcurrentPUCount

          void setConcurrentPUCount(int aConcurrentPUCount)
                             throws CpeDescriptorException

      Sets ProcessingUnit replication. Each ProcessingUnit contains the same sequence of CasProcessors and runs in a seperate thread. On platforms containing more than one CPU, replicating ProcessingUnit may result in better performance.
      Parameters:
        `aConcurrentPUCount` - - number of ProcessingUnits(processing threads)
      Throws:
        `CpeDescriptorException` - tbd

    - #### getConcurrentPUCount

          int getConcurrentPUCount()

      Returns number of ProcessingUnits. Each ProcessingUnit contains the same sequence of CasProcessors and runs in a seperate thread. On platforms containing more than one CPU, replicating ProcessingUnit may result in better performance.
      Returns:
        - number of ProcessingUnits(processing threads)

    - #### addCpeCasProcessor

          void addCpeCasProcessor(CpeCasProcessor aCasProcessor,
                                  int aInsertPosition)
                           throws CpeDescriptorException

      Inserts a new CasProcessor at an indicated position.
      Parameters:
        `aCasProcessor` - - CasProcessor to add
        `aInsertPosition` - - position where to insert the CasProcessor
      Throws:
        `CpeDescriptorException` - tbd

    - #### addCpeCasProcessor

          void addCpeCasProcessor(CpeCasProcessor aCasProcessor)
                           throws CpeDescriptorException

      Appends new CasProcessor to existing list of CasProcessors
      Parameters:
        `aCasProcessor` - - CasProcessor to add
      Throws:
        `CpeDescriptorException` - tbd

    - #### getCpeCasProcessor

          CpeCasProcessor getCpeCasProcessor(int aPosition)
                                      throws CpeDescriptorException

      Returns `CpeCasProcessor` found at given position.
      Parameters:
        `aPosition` - - position of the CasProcessor
      Returns:
        - `CpeCasProcessor`
      Throws:
        `CpeDescriptorException` - tbd

    - #### getAllCpeCasProcessors

          CpeCasProcessor[] getAllCpeCasProcessors()
                                            throws CpeDescriptorException

      Returns ALL `CpeCasProcessor` objects in processing pipeline.
      Returns:
        array of `CpeCasProcessor`
      Throws:
        `CpeDescriptorException` - tbd

    - #### removeCpeCasProcessor

          void removeCpeCasProcessor(int aPosition)
                              throws CpeDescriptorException

      Removes `CpeCasProcessor` object from processing pipeline from a given position.
      Parameters:
        `aPosition` - - position of the CasProcessor in the pipeline
      Throws:
        `CpeDescriptorException` - tbd

    - #### removeAllCpeCasProcessors

          void removeAllCpeCasProcessors()
                                  throws CpeDescriptorException

      Removes ALL `CpeCasProcessor` objects from processing pipeline.
      Throws:
        `CpeDescriptorException` - tbd

    - #### setPoolSize

          void setPoolSize(int aPoolSize)
                    throws CpeDescriptorException

      Throws:
        `CpeDescriptorException`

    - #### getCasPoolSize

          int getCasPoolSize()

    - #### getDropCasOnException

          boolean getDropCasOnException()

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