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com.tangosol.util
Class WrapperCollections.AbstractWrapperEntry

java.lang.Object
com.tangosol.util.WrapperCollections.AbstractWrapperEntry

All Implemented Interfaces:

java.util.Map.Entry

Enclosing class:

WrapperCollections

public abstract static class WrapperCollections.AbstractWrapperEntry

extends java.lang.Object

implements java.util.Map.Entry

Map.Entry implementation which delegates all calls to another Map.Entry.

Constructor Summary

protected

WrapperCollections.AbstractWrapperEntry(java.util.Map.Entry entry) Create an AbstractWrapperEntry which delegates to the specified Entry.

Method Summary

boolean	equals(java.lang.Object o) Compares the specified object with this entry for equality.
protected java.util.Map.Entry	getDelegate() Return the Map to which all operations should be delegated to.
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 oValue) Replaces the value corresponding to this entry with the specified value (optional operation).
java.lang.String	toString()

Constructor Detail

WrapperCollections.AbstractWrapperEntry

protected WrapperCollections.AbstractWrapperEntry(java.util.Map.Entry entry)

Create an AbstractWrapperEntry which delegates to the specified Entry.

Parameters:

entry - the Entry to delegate all calls to

Method Detail

getDelegate

protected java.util.Map.Entry getDelegate()

Return the Map to which all operations should be delegated to.

Returns:

the wrapped Map

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 oValue)

Replaces the value corresponding to this entry with the specified value (optional operation). (Writes through to the map.) The behavior of this call is undefined if the mapping has already been removed from the map (by the iterator's remove operation).

Specified by:

setValue in interface java.util.Map.Entry

Parameters:

oValue - new value to be stored in this entry.

Returns:

old value corresponding to the entry.

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

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

Returns:

the hash code value for this map entry.

See Also:

Object.hashCode(), Object.equals(Object), Map.Entry.equals(Object)

toString

public java.lang.String toString()

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