javax.management.openmbean
Class TabularDataSupport

java.lang.Object
  javax.management.openmbean.TabularDataSupport

All Implemented Interfaces:

Serializable, Cloneable, Map, TabularData

public class TabularDataSupport
extends Object
implements Cloneable, Map, Serializable, TabularData

An implementation of TabularData.

Version:

$Revision: 57200 $

Author:

Adrian Brock, Thomas Diesler.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

TabularDataSupport(TabularType tabularType)
Construct Tabular Data with an initial capacity of 101 and a load factor of 0.75

TabularDataSupport(TabularType tabularType, int initialCapacity, float loadFactor)
Construct Tabular Data

Method Summary

Object[]	calculateIndex(CompositeData value) Calculate the index for the value passed if it were added to the tabular data.
void	clear() Removes all CompositeData values from the Tabular Data
Object	clone()
boolean	containsKey(Object key)
boolean	containsKey(Object[] key) Determine whether the tabular data contains the passed value as a row.
boolean	containsValue(CompositeData value) Determine whether the tabular data contains the passed value.
boolean	containsValue(Object value)
Set	entrySet()
boolean	equals(Object obj) Compares the specified obj parameter with this TabularDataSupport instance for equality.
Object	get(Object key)
CompositeData	get(Object[] key) Retrieve the composite data for the passed index.
TabularType	getTabularType() Retrieve the tabular type for this tabular data
int	hashCode() Generates a hashcode for the implementation.
boolean	isEmpty() Determine whether the tabular data is empty.
Set	keySet() Returns a set view of the index values.
void	put(CompositeData value) Add a value to the tabular data.
Object	put(Object key, Object value)
void	putAll(CompositeData[] values) Add all the passed values.
void	putAll(Map t)
Object	remove(Object key)
CompositeData	remove(Object[] key) Removes the value for the passed and returns the removed value, or null if the key was not present.
int	size() Retrieve the number of rows in the tabular data.
String	toString() A string representation of the open mbean operation info.
Collection	values() Returns a set view of the row values.

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

TabularDataSupport

public TabularDataSupport(TabularType tabularType)

Construct Tabular Data with an initial capacity of 101 and a load factor of 0.75

Parameters:

tabularType - the tabular type of the data

Throws:

IllegalArgumentException - for a null argument

TabularDataSupport

public TabularDataSupport(TabularType tabularType,
                          int initialCapacity,
                          float loadFactor)

Construct Tabular Data

Parameters:

tabularType - the tabular type of the data

initialCapacity - the initial capacity of the map

loadFactor - the load factory of the map

Throws:

IllegalArgumentException - for a null argument

Method Detail

getTabularType

public TabularType getTabularType()

Description copied from interface: TabularData

Retrieve the tabular type for this tabular data

Specified by:

getTabularType in interface TabularData

Returns:

the tabular type

calculateIndex

public Object[] calculateIndex(CompositeData value)

Description copied from interface: TabularData

Calculate the index for the value passed if it were added to the tabular data. The validity of the passed value is checked. But the tabular data isn't checked to see whether the index is already used.

Specified by:

calculateIndex in interface TabularData

Parameters:

value - the value for which the index is calculated.

Returns:

the calculated index

clear

public void clear()

Description copied from interface: TabularData

Removes all CompositeData values from the Tabular Data

Specified by:

clear in interface Map

Specified by:

clear in interface TabularData

containsKey

public boolean containsKey(Object[] key)

Description copied from interface: TabularData

Determine whether the tabular data contains the passed value as a row. If the passed value is null or invalid, false is returned.

Specified by:

containsKey in interface TabularData

Parameters:

key - the value to check

Returns:

true when the value is a row index, false otherwise

containsValue

public boolean containsValue(CompositeData value)

Description copied from interface: TabularData

Determine whether the tabular data contains the passed value. If the passed value is null or invalid, false is returned.

Specified by:

containsValue in interface TabularData

Parameters:

value - the value to check

Returns:

true when the value is a row index, false otherwise

get

public CompositeData get(Object[] key)

Description copied from interface: TabularData

Retrieve the composite data for the passed index.

Specified by:

get in interface TabularData

Parameters:

key - the index to retrieve

isEmpty

public boolean isEmpty()

Description copied from interface: TabularData

Determine whether the tabular data is empty.

Specified by:

isEmpty in interface Map

Specified by:

isEmpty in interface TabularData

Returns:

true when there are no rows, false otherwise

keySet

public Set keySet()

Description copied from interface: TabularData

Returns a set view of the index values.

Specified by:

keySet in interface Map

Specified by:

keySet in interface TabularData

Returns:

the set of index values.

put

public void put(CompositeData value)

Description copied from interface: TabularData

Add a value to the tabular data. The value must have the same CompositeType has the tabular data and there is no value already occupying the index for the value.

Specified by:

put in interface TabularData

Parameters:

value - the value to add

putAll

public void putAll(CompositeData[] values)

Description copied from interface: TabularData

Add all the passed values. All the values are checked before addition including any duplicates that might be added. Either all or no value is added.

Specified by:

putAll in interface TabularData

Parameters:

values - the values to add

remove

public CompositeData remove(Object[] key)

Description copied from interface: TabularData

Removes the value for the passed and returns the removed value, or null if the key was not present.

Specified by:

remove in interface TabularData

Parameters:

key - the index of the value to remove

size

public int size()

Description copied from interface: TabularData

Retrieve the number of rows in the tabular data.

Specified by:

size in interface Map

Specified by:

size in interface TabularData

Returns:

the number of rows.

values

public Collection values()

Description copied from interface: TabularData

Returns a set view of the row values.

Specified by:

values in interface Map

Specified by:

values in interface TabularData

Returns:

the set of row values.

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map

entrySet

public Set entrySet()

Specified by:

entrySet in interface Map

get

public Object get(Object key)

Specified by:

get in interface Map

put

public Object put(Object key,
                  Object value)

Specified by:

put in interface Map

putAll

public void putAll(Map t)

Specified by:

putAll in interface Map

remove

public Object remove(Object key)

Specified by:

remove in interface Map

clone

public Object clone()

Overrides:

clone in class Object

equals

public boolean equals(Object obj)

Compares the specified obj parameter with this TabularDataSupport instance for equality. Returns true if and only if all of the following statements are true: - obj is non null, - obj also implements the TabularData interface, - their tabular types are equal - their contents (ie all CompositeData values) are equal. This ensures that this equals method works properly for obj parameters which are different implementations of the TabularData interface.

Specified by:

equals in interface Map

Specified by:

equals in interface TabularData

Overrides:

equals in class Object

Parameters:

obj - the object to test

Returns:

true when the above conditions are satisfied, false otherwise.

hashCode

public int hashCode()

Description copied from interface: TabularData

Generates a hashcode for the implementation.

The sum of the hashCodes for the elements mentioned in the equals method

Specified by:

hashCode in interface Map

Specified by:

hashCode in interface TabularData

Overrides:

hashCode in class Object

Returns:

the calculated hashcode

toString

public String toString()

Description copied from interface: TabularData

A string representation of the open mbean operation info.

It is made up of implementation class and the values mentioned in the equals method

Specified by:

toString in interface TabularData

Overrides:

toString in class Object

Returns:

the string