V
- the type of contained valuepublic class SimpleHolder<V> extends SimpleHolder<V> implements ExternalizableLite, PortableObject
m_value
Constructor and Description |
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SimpleHolder()
Deserialization constructor.
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SimpleHolder(V value)
Construct SimpleHolder instance.
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Modifier and Type | Method and Description |
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boolean |
equals(Object o) |
int |
hashCode() |
boolean |
isPresent()
Return true if the contained value is present, false otherwise.
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void |
readExternal(DataInput in)
Restore the contents of this object by loading the object's state from
the passed DataInput object.
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void |
readExternal(PofReader in)
Restore the contents of a user type instance by reading its state using
the specified PofReader object.
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String |
toString() |
void |
writeExternal(DataOutput out)
Save the contents of this object by storing the object's state into
the passed DataOutput object.
|
void |
writeExternal(PofWriter out)
Save the contents of a POF user type instance by writing its state using
the specified PofWriter object.
|
get, set
public SimpleHolder()
public SimpleHolder(V value)
value
- the contained valuepublic boolean isPresent()
public void readExternal(DataInput in) throws IOException
ExternalizableLite
readExternal
in interface ExternalizableLite
in
- the DataInput stream to read data from in order to restore
the state of this objectIOException
- if an I/O exception occursNotActiveException
- if the object is not in its initial
state, and therefore cannot be deserialized intopublic void writeExternal(DataOutput out) throws IOException
ExternalizableLite
writeExternal
in interface ExternalizableLite
out
- the DataOutput stream to write the state of this object toIOException
- if an I/O exception occurspublic void readExternal(PofReader in) throws IOException
PortableObject
readExternal
in interface PortableObject
in
- the PofReader from which to read the object's stateIOException
- if an I/O error occurspublic void writeExternal(PofWriter out) throws IOException
PortableObject
writeExternal
in interface PortableObject
out
- the PofWriter to which to write the object's stateIOException
- if an I/O error occurs