org.apache.commons.collections.keyvalue
Class DefaultKeyValue
- KeyValue
public class DefaultKeyValue
A mutable KeyValue pair that does not implement MapEntry.
Note that a
DefaultKeyValue
instance may not contain
itself as a key or value.
$Revision: 1.4 $ $Date: 2004/02/18 01:00:08 $- James Strachan
- Michael A. Smith
- Neil O'Toole
- Stephen Colebourne
boolean | equals(Object obj) - Compares this Map Entry with another Map Entry.
|
int | hashCode() - Gets a hashCode compatible with the equals method.
|
Object | setKey(Object key) - Sets the key.
|
Object | setValue(Object value) - Sets the value.
|
Map.Entry | toMapEntry() - Returns a new
Map.Entry object with key and value from this pair.
|
DefaultKeyValue
public DefaultKeyValue()
Constructs a new pair with a null key and null value.
DefaultKeyValue
public DefaultKeyValue(Map.Entry entry)
Constructs a new pair from the specified MapEntry.
entry
- the entry to copy, must not be null
DefaultKeyValue
public DefaultKeyValue(Object key,
Object value)
Constructs a new pair with the specified key and given value.
key
- the key for the entry, may be nullvalue
- the value for the entry, may be null
DefaultKeyValue
public DefaultKeyValue(KeyValue pair)
Constructs a new pair from the specified KeyValue.
pair
- the pair to copy, must not be null
equals
public boolean equals(Object obj)
Compares this Map Entry with another Map Entry.
Returns true if the compared object is also a
DefaultKeyValue
,
and its key and value are equal to this object's key and value.
obj
- the object to compare to
- true if equal key and value
hashCode
public int hashCode()
Gets a hashCode compatible with the equals method.
Implemented per API documentation of
java.util.Map.Entry.hashCode()
,
however subclasses may override this.
setKey
public Object setKey(Object key)
Sets the key.
setValue
public Object setValue(Object value)
Sets the value.
- the old value of the value
toMapEntry
public Map.Entry toMapEntry()
Returns a new Map.Entry
object with key and value from this pair.
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