Class CompositeProcessor<K,V>

java.lang.Object
com.tangosol.util.Base
com.tangosol.util.processor.AbstractProcessor<K,V,Object>
com.tangosol.util.processor.CompositeProcessor<K,V>
All Implemented Interfaces:
ExternalizableLite, PortableObject, InvocableMap.EntryProcessor<K,V,Object>, Serializable

public class CompositeProcessor<K,V> extends AbstractProcessor<K,V,Object> implements ExternalizableLite, PortableObject
The CompositeProcessor represents a collection of entry processors that are invoked sequentially against the same Entry.
Author:
gg/jh 2005.10.31
See Also:
  • Field Details

  • Constructor Details

    • CompositeProcessor

      public CompositeProcessor()
      Default constructor (necessary for the ExternalizableLite interface).
    • CompositeProcessor

      public CompositeProcessor(InvocableMap.EntryProcessor<K,V,?>[] aProcessor)
      Construct a CompositeProcessor for the specified array of individual entry processors.

      The result of the CompositeProcessor execution is an array of results returned by the individual EntryProcessor invocations.

      Parameters:
      aProcessor - the entry processor array
  • Method Details

    • process

      public Object process(InvocableMap.Entry<K,V> entry)
      Process a Map.Entry object.

      Note: if this method throws an exception, all modifications to the supplied entry or any other entries retrieved via the BackingMapContext.getBackingMapEntry(Object) API will be rolled back leaving all underlying values unchanged.

      Specified by:
      process in interface InvocableMap.EntryProcessor<K,V,Object>
      Parameters:
      entry - the Entry to process
      Returns:
      the result of the processing, if any
    • getProcessors

      public InvocableMap.EntryProcessor<K,V,?>[] getProcessors()
      Obtain the underlying processors.
      Returns:
      the processors wrapped by this CompositeProcessor
    • equals

      public boolean equals(Object o)
      Compare the ConditionalProcessor with another object to determine equality.
      Overrides:
      equals in class Object
      Returns:
      true iff this ConditionalProcessor and the passed object are equivalent ConditionalProcessors
    • hashCode

      public int hashCode()
      Determine a hash value for the ConditionalProcessor object according to the general Object.hashCode() contract.
      Overrides:
      hashCode in class Object
      Returns:
      an integer hash value for this ConditionalProcessor object
    • toString

      public String toString()
      Return a human-readable description for this ConditionalProcessor.
      Overrides:
      toString in class Object
      Returns:
      a String description of the ConditionalProcessor
    • readExternal

      public void readExternal(DataInput in) throws IOException
      Restore the contents of this object by loading the object's state from the passed DataInput object.
      Specified by:
      readExternal in interface ExternalizableLite
      Parameters:
      in - the DataInput stream to read data from in order to restore the state of this object
      Throws:
      IOException - if an I/O exception occurs
    • writeExternal

      public void writeExternal(DataOutput out) throws IOException
      Save the contents of this object by storing the object's state into the passed DataOutput object.
      Specified by:
      writeExternal in interface ExternalizableLite
      Parameters:
      out - the DataOutput stream to write the state of this object to
      Throws:
      IOException - if an I/O exception occurs
    • readExternal

      public void readExternal(PofReader in) throws IOException
      Restore the contents of a user type instance by reading its state using the specified PofReader object.
      Specified by:
      readExternal in interface PortableObject
      Parameters:
      in - the PofReader from which to read the object's state
      Throws:
      IOException - if an I/O error occurs
    • writeExternal

      public void writeExternal(PofWriter out) throws IOException
      Save the contents of a POF user type instance by writing its state using the specified PofWriter object.
      Specified by:
      writeExternal in interface PortableObject
      Parameters:
      out - the PofWriter to which to write the object's state
      Throws:
      IOException - if an I/O error occurs