com.isti.util
Class FifoHashtable.MapEntry

java.lang.Object
  extended by com.isti.util.FifoHashtable.MapEntry
All Implemented Interfaces:
java.util.Map.Entry
Enclosing class:
FifoHashtable

public static class FifoHashtable.MapEntry
extends java.lang.Object
implements java.util.Map.Entry


Field Summary
protected  java.lang.Object key
           
protected  java.lang.Object value
           
 
Constructor Summary
FifoHashtable.MapEntry(java.lang.Object key, java.lang.Object value)
           
 
Method Summary
 boolean equals(java.lang.Object o)
          Compares the specified object with this entry for equality.
 java.lang.Object getKey()
          Returns the key corresponding to this entry.
 java.lang.Object getValue()
          Returns the value corresponding to this entry.
 int hashCode()
          Returns the hash code value for this map entry.
 java.lang.Object setValue(java.lang.Object value)
          This method is not supported.
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

key

protected final java.lang.Object key

value

protected final java.lang.Object value
Constructor Detail

FifoHashtable.MapEntry

public FifoHashtable.MapEntry(java.lang.Object key,
                              java.lang.Object value)
Method Detail

getKey

public java.lang.Object getKey()
Returns the key corresponding to this entry.

Specified by:
getKey in interface java.util.Map.Entry
Returns:
the key corresponding to this entry.

getValue

public java.lang.Object getValue()
Returns the value corresponding to this entry. If the mapping has been removed from the backing map (by the iterator's remove operation), the results of this call are undefined.

Specified by:
getValue in interface java.util.Map.Entry
Returns:
the value corresponding to this entry.

setValue

public java.lang.Object setValue(java.lang.Object value)
This method is not supported.

Specified by:
setValue in interface java.util.Map.Entry
Parameters:
value - value object.
Returns:
Nothing.
Throws:
java.lang.UnsupportedOperationException - Always throws this exception.

equals

public boolean equals(java.lang.Object o)
Compares the specified object with this entry for equality. Returns true if the given object is also a map entry and the two entries represent the same mapping. More formally, two entries e1 and e2 represent the same mapping if
     (e1.getKey()==null ?
      e2.getKey()==null : e1.getKey().equals(e2.getKey()))  &&
     (e1.getValue()==null ?
      e2.getValue()==null : e1.getValue().equals(e2.getValue()))
 
This ensures that the equals method works properly across different implementations of the Map.Entry interface.

Specified by:
equals in interface java.util.Map.Entry
Overrides:
equals in class java.lang.Object
Parameters:
o - object to be compared for equality with this map entry.
Returns:
true if the specified object is equal to this map 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 java.util.Map.Entry
Overrides:
hashCode in class java.lang.Object
Returns:
the hash code value for this map entry.
See Also:
Object.hashCode(), Object.equals(Object), equals(Object)