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Java Source Code / Java Documentation » JMX » jfoxmx » javax.management.openmbean 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   javax.management.openmbean.CompositeDataSupport

CompositeDataSupport
public class CompositeDataSupport implements CompositeData,Serializable(Code)
The CompositeDataSupport class is the open data class which implements the CompositeData interface.
author:
   Young Yang



Constructor Summary
public  CompositeDataSupport(CompositeType compositeType, String[] itemNames, Object[] itemValues)
    

Constructs a CompositeDataSupport instance with the specified compositeType, whose item values are specified by itemValues[], in the same order as in itemNames[].

public  CompositeDataSupport(CompositeType compositeType, Map items)
    

Constructs a CompositeDataSupport instance with the specified compositeType, whose item names and corresponding values are given by the mappings in the map items.


Method Summary
public  booleancontainsKey(String key)
     Returns true if and only if this CompositeData instance contains an item whose name is key.
public  booleancontainsValue(Object value)
     Returns true if and only if this CompositeData instance contains an item whose value is value.
public  booleanequals(Object obj)
    
public  Objectget(String key)
     Returns the value of the item whose name is key.
public  Object[]getAll(String[] keys)
     Returns an array of the values of the items whose names are specified by keys, in the same order as keys.
public  CompositeTypegetCompositeType()
     Returns the composite type of this composite data instance.
public  inthashCode()
     Returns the hash code value for this CompositeDataSupport instance.
public  StringtoString()
     Returns a string representation of this CompositeDataSupport instance.
public  Collectionvalues()
     Returns an unmodifiable Collection view of the item values contained in this CompositeData instance.


Constructor Detail
CompositeDataSupport
public CompositeDataSupport(CompositeType compositeType, String[] itemNames, Object[] itemValues) throws OpenDataException(Code)

Constructs a CompositeDataSupport instance with the specified compositeType, whose item values are specified by itemValues[], in the same order as in itemNames[]. As a CompositeType does not specify any order on its items, the itemNames[] parameter is used to specify the order in which the values are given in itemValues[]. The items contained in this CompositeDataSupport instance are internally stored in a TreeMap, thus sorted in ascending lexicographic order of their names, for faster retrieval of individual item values.

The constructor checks that all the constraints listed below for each parameter are satisfied, and throws the appropriate exception if they are not.


Parameters:
  compositeType - the composite type of this composite data instance;must not be null.


Parameters:
  itemNames - itemNames must list, in any order, all the item names defined in compositeType;the order in which the names are listed, is used to match values in itemValues[];must not be null or empty.


Parameters:
  itemValues - the values of the items, listed in the same order as their respective names in itemNames;each item value can be null, but if it is non-null it must bea valid value for the open type defined in compositeType for the corresponding item;must be of the same size as itemNames; must not be null or empty.


throws:
  IllegalArgumentException - compositeType is null, or itemNames[] or itemValues[] is null or empty,or one of the elements in itemNames[] is a null or empty string,or itemNames[] and itemValues[] are not of the same size.


throws:
  OpenDataException - itemNames[] or itemValues[]'s size differs fromthe number of items defined in compositeType,or one of the elements in itemNames[] does not exist as an item name defined in compositeType,or one of the elements in itemValues[] is not a valid value for the corresponding itemas defined in compositeType.




CompositeDataSupport
public CompositeDataSupport(CompositeType compositeType, Map items) throws OpenDataException(Code)

Constructs a CompositeDataSupport instance with the specified compositeType, whose item names and corresponding values are given by the mappings in the map items. This constructor converts the keys to a string array and the values to an object array and calls CompositeDataSupport(javax.management.openmbean.CompositeType, java.lang.String[], java.lang.Object[]).


Parameters:
  compositeType - the composite type of this composite data instance;must not be null.


Parameters:
  items - the mappings of all the item names to their values;items must contain all the item names defined in compositeType;must not be null or empty.


throws:
  IllegalArgumentException - compositeType is null, or items is null or empty,or one of the keys in items is a null or empty string,or one of the values in items is null.


throws:
  OpenDataException - items' size differs from the number of items defined in compositeType,or one of the keys in items does not exist as an item name defined in compositeType,or one of the values in items is not a valid value for the corresponding itemas defined in compositeType.


throws:
  ArrayStoreException - one or more keys in items is not of the class java.lang.String.





Method Detail
containsKey
public boolean containsKey(String key)(Code)
Returns true if and only if this CompositeData instance contains an item whose name is key. If key is a null or empty String, this method simply returns false.



containsValue
public boolean containsValue(Object value)(Code)
Returns true if and only if this CompositeData instance contains an item whose value is value.



equals
public boolean equals(Object obj)(Code)



get
public Object get(String key)(Code)
Returns the value of the item whose name is key.
throws:
  IllegalArgumentException - if key is a null or empty String.
throws:
  InvalidKeyException - if key is not an existing item name for this CompositeData instance.



getAll
public Object[] getAll(String[] keys)(Code)
Returns an array of the values of the items whose names are specified by keys, in the same order as keys.
throws:
  IllegalArgumentException - if an element in keys is a null or empty String.
throws:
  InvalidKeyException - if an element in keys is not an existing item name for this CompositeData instance.



getCompositeType
public CompositeType getCompositeType()(Code)
Returns the composite type of this composite data instance.



hashCode
public int hashCode()(Code)
Returns the hash code value for this CompositeDataSupport instance.

The hash code of a CompositeDataSupport instance is the sum of the hash codes of all elements of information used in equals comparisons (ie: its composite type and all the item values).

This ensures that t1.equals(t2) implies that t1.hashCode()==t2.hashCode() for any two CompositeDataSupport instances t1 and t2, as required by the general contract of the method Object.hashCode .

However, note that another instance of a class implementing the CompositeData interface may be equal to this CompositeDataSupport instance as defined by CompositeDataSupport.equals , but may have a different hash code if it is calculated differently. the hash code value for this CompositeDataSupport instance




toString
public String toString()(Code)
Returns a string representation of this CompositeDataSupport instance.

The string representation consists of the name of this class (ie javax.management.openmbean.CompositeDataSupport), the string representation of the composite type of this instance, and the string representation of the contents (ie list the itemName=itemValue mappings). a string representation of this CompositeDataSupport instance




values
public Collection values()(Code)
Returns an unmodifiable Collection view of the item values contained in this CompositeData instance. The returned collection's iterator will return the values in the ascending lexicographic order of the corresponding item names.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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