Class SimpleHolder<V>

java.lang.Object
com.oracle.coherence.common.base.SimpleHolder<V>
com.tangosol.util.SimpleHolder<V>
Type Parameters:
V - the type of contained value
All Implemented Interfaces:
Holder<V>, ExternalizableLite, PortableObject, Serializable
public class SimpleHolder<V> extends SimpleHolder<V> implements ExternalizableLite, PortableObject
General purpose container that can be used as an accumulator for any reference type.
See Also:

  • Constructor Details

    • SimpleHolder

      public SimpleHolder()
      Deserialization constructor.

    • SimpleHolder

      public SimpleHolder(V value)
      Construct SimpleHolder instance.
      Parameters:
      value - the contained value

  • Method Details

    • isPresent

      public boolean isPresent()
      Return true if the contained value is present, false otherwise.
      Returns:
      true if the contained value is present, false otherwise

    • readExternal

      public void readExternal(DataInput in) throws IOException
      Description copied from interface: ExternalizableLite
      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
      Description copied from interface: ExternalizableLite
      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
      Description copied from interface: PortableObject
      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
      Description copied from interface: PortableObject
      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

    • equals

      public boolean equals(Object o)
      Overrides:
      equals in class Object

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • toString

      public String toString()
      Overrides:
      toString in class Object