Package com.tangosol.util

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, Holder<V>
General purpose container that can be used as an accumulator for any reference type.
See Also:

  • Field Summary

    Fields inherited from class com.oracle.coherence.common.base.SimpleHolder

    m_value

  • Constructor Summary

    Constructors
    Constructor
    Description
    SimpleHolder()
    Deserialization constructor.
    SimpleHolder(V value)
    Construct SimpleHolder instance.

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    equals(Object o)
     
    int
    hashCode()
     
    boolean
    isPresent()
    Return true if the contained value is present, false otherwise.
    void
    readExternal(PofReader in)
    Restore the contents of a user type instance by reading its state using the specified PofReader object.
    void
    readExternal(DataInput in)
    Restore the contents of this object by loading the object's state from the passed DataInput object.
    String
    toString()
     
    void
    writeExternal(PofWriter out)
    Save the contents of a POF user type instance by writing its state using the specified PofWriter object.
    void
    writeExternal(DataOutput out)
    Save the contents of this object by storing the object's state into the passed DataOutput object.

    Methods inherited from class com.oracle.coherence.common.base.SimpleHolder

    get, set

    Methods inherited from class java.lang.Object

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

    Methods inherited from interface com.oracle.coherence.common.base.Holder

    get, set

  • 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
      NotActiveException - if the object is not in its initial state, and therefore cannot be deserialized into

    • 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