Package org.pentaho.reporting.libraries.base.util

Class LinkedMap.MapEntry

java.lang.Object

org.pentaho.reporting.libraries.base.util.LinkedMap.MapEntry

All Implemented Interfaces:

Serializable

Enclosing class:

LinkedMap

protected static final class LinkedMap.MapEntry
extends Object
implements Serializable

A cache map entry class holding both the key and value and acting as member of a linked list.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected LinkedMap.MapEntry	collisionNext	The link to the next entry in the bucket that has the same hashkey.
protected final int	hashKey	The precomputed hashkey of the key.
protected final Object	key	The key object, which is never null and which never changes.
protected LinkedMap.MapEntry	next	The link to the next entry in the list.
protected LinkedMap.MapEntry	previous	The link to the previous entry in the list.
protected Object	value	The current value object (can be null).

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	MapEntry(Object key, int hashKey, Object value)	Creates a new map-entry for the given key and value.

Method Summary

Modifier and Type	Method	Description
LinkedMap.MapEntry	getCollisionNext()	Returns the next map-entry in the bucket.
LinkedMap.MapEntry	getNext()	Returns the next entry in the list or null if this is the last entry.
LinkedMap.MapEntry	getPrevious()	Returns the previous entry in the list or null if this is the first entry.
Object	getValue()	Returns the current value.
void	setCollisionNext(LinkedMap.MapEntry collisionNext)	Defines the next map-entry in the bucket.
void	setNext(LinkedMap.MapEntry next)	Redefines the next entry in the list or null if this is the last entry.
void	setPrevious(LinkedMap.MapEntry previous)	Redefines the previous entry in the list or null if this is the first entry.
void	setValue(Object value)	Redefines the current value.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

hashKey

protected final int hashKey

The precomputed hashkey of the key.

key

protected final Object key

The key object, which is never null and which never changes.

value

protected Object value

The current value object (can be null).

previous

protected LinkedMap.MapEntry previous

The link to the previous entry in the list.

next

protected LinkedMap.MapEntry next

The link to the next entry in the list.

collisionNext

protected LinkedMap.MapEntry collisionNext

The link to the next entry in the bucket that has the same hashkey.

Constructor Details

MapEntry

protected MapEntry(Object key,
 int hashKey,
 Object value)

Creates a new map-entry for the given key and value.

Parameters:

key - the key, never null.

hashKey - the precomputed hashkey for the key.

value - the value, never null.

Method Details

getPrevious

public LinkedMap.MapEntry getPrevious()

Returns the previous entry in the list or null if this is the first entry.

Returns:

the previous entry.

setPrevious

public void setPrevious(LinkedMap.MapEntry previous)

Redefines the previous entry in the list or null if this is the first entry.

Parameters:

previous - the previous entry.

getNext

public LinkedMap.MapEntry getNext()

Returns the next entry in the list or null if this is the last entry.

Returns:

the next entry.

setNext

public void setNext(LinkedMap.MapEntry next)

Redefines the next entry in the list or null if this is the last entry.

Parameters:

next - the next entry.

getValue

public Object getValue()

Returns the current value.

Returns:

the value, never null.

setValue

public void setValue(Object value)

Redefines the current value.

Parameters:

value - the value, never null.

getCollisionNext

public LinkedMap.MapEntry getCollisionNext()

Returns the next map-entry in the bucket. If more than one object maps into the same hash-bucket, this map stores the entries as linked list.

Returns:

the next entry.

setCollisionNext

public void setCollisionNext(LinkedMap.MapEntry collisionNext)

Defines the next map-entry in the bucket. If more than one object maps into the same hash-bucket, this map stores the entries as linked list.

Parameters:

collisionNext - the next entry.