Package com.tangosol.util.extractor

Class ReflectionUpdater

java.lang.Object
com.tangosol.util.Base
com.tangosol.util.BitHelper
com.tangosol.util.ExternalizableHelper
com.tangosol.util.extractor.AbstractUpdater
com.tangosol.util.extractor.ReflectionUpdater
All Implemented Interfaces:
ExternalizableLite, PortableObject, ValueUpdater, Serializable
public class ReflectionUpdater extends AbstractUpdater implements ExternalizableLite, PortableObject
Reflection-based ValueUpdater implementation.
Author:
gg 2005.10.27
See Also:

  • Field Details

    • m_sMethod

      protected String m_sMethod
      The name of the method to invoke.

  • Constructor Details

    • ReflectionUpdater

      public ReflectionUpdater()
      Default constructor (necessary for the ExternalizableLite interface).

    • ReflectionUpdater

      public ReflectionUpdater(String sMethod)
      Construct a ReflectionUpdater for a given method name. This implementation assumes that the corresponding classes will have one and only one method with a specified name and this method will have exactly one parameter.
      Parameters:
      sMethod - the name of the method to invoke via reflection

  • Method Details

    • update

      public void update(Object oTarget, Object oValue)
      Update the state of the passed target object using the passed value. For intrinsic types, the specified value is expected to be a standard wrapper type in the same manner that reflection works; for example, an int value would be passed as a java.lang.Integer.
      Specified by:
      update in interface ValueUpdater
      Overrides:
      update in class AbstractUpdater
      Parameters:
      oTarget - the Object to update the state of
      oValue - the new value to update the state with

    • getMethodName

      public String getMethodName()
      Determine the name of the method that this extractor is configured to invoke.
      Returns:
      the name of the method to invoke using reflection

    • equals

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

    • hashCode

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

    • toString

      public String toString()
      Provide a human-readable description of this ValueUpdater object.
      Overrides:
      toString in class Object
      Returns:
      a human-readable description of this ValueUpdater object

    • 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