com.tangosol.util
Class AbstractKeyBasedMap.EntrySet.Entry

java.lang.Object
  com.tangosol.util.Base
      com.tangosol.util.SimpleMapEntry
          com.tangosol.util.AbstractKeyBasedMap.EntrySet.Entry

All Implemented Interfaces:

Serializable, Cloneable, Map.Entry

Enclosing class:

AbstractKeyBasedMap.EntrySet

protected class AbstractKeyBasedMap.EntrySet.Entry
extends SimpleMapEntry

A Map Entry implementation that defers its value acquisition from the containing map (via Map.get(Object)) if the Entry is constructed with a null value.

Field Summary

Fields inherited from class com.tangosol.util.SimpleMapEntry

m_oKey, m_oValue

Constructor Summary

AbstractKeyBasedMap.EntrySet.Entry(Object oKey, Object oValue)
Construct an Entry.

Method Summary

Object	getValue() Returns the value corresponding to this entry.
int	hashCode() Returns the hash code value for this map entry.
Object	setValue(Object oValue) Replaces the value corresponding to this entry with the specified value (optional operation).

Methods inherited from class com.tangosol.util.SimpleMapEntry

clone, equals, getKey, toString

Constructor Detail

AbstractKeyBasedMap.EntrySet.Entry

public AbstractKeyBasedMap.EntrySet.Entry(Object oKey,
                                          Object oValue)

Construct an Entry.

Parameters:

oKey - the Entry key

oValue - the Entry value (optional)

Method Detail

getValue

public Object getValue()

Returns the value corresponding to this entry.

Specified by:

getValue in interface Map.Entry

Overrides:

getValue in class SimpleMapEntry

Returns:

the value corresponding to this entry

setValue

public Object setValue(Object oValue)

Replaces the value corresponding to this entry with the specified value (optional operation). (Writes through to the map.)

Specified by:

setValue in interface Map.Entry

Overrides:

setValue in class SimpleMapEntry

Parameters:

oValue - new value to be stored in this entry

Returns:

old value corresponding to the entry

hashCode

public int hashCode()

Returns the hash code value for this map entry. The hash code of a map entry e is defined to be:

     (e.getKey()==null   ? 0 : e.getKey().hashCode()) ^
     (e.getValue()==null ? 0 : e.getValue().hashCode())
 

This ensures that e1.equals(e2) implies that e1.hashCode()==e2.hashCode() for any two Entries e1 and e2, as required by the general contract of Object.hashCode.

Specified by:

hashCode in interface Map.Entry

Overrides:

hashCode in class SimpleMapEntry

Returns:

the hash code value for this map entry.