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Java Source Code / Java Documentation » 6.0 JDK Modules » j2me » sun.text 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   sun.text.CompactIntArray

CompactIntArray
final public class CompactIntArray implements Cloneable(Code)
class CompactATypeArray : use only on primitive data types Provides a compact way to store information that is indexed by Unicode values, such as character properties, types, keyboard values, etc.This is very useful when you have a block of Unicode data that contains significant values while the rest of the Unicode data is unused in the application or when you have a lot of redundance, such as where all 21,000 Han ideographs have the same value. However, lookup is much faster than a hash table. A compact array of any primitive data type serves two purposes:
  • Fast access of the indexed values.
  • Smaller memory footprint.
A compact array is composed of a index array and value array. The index array contains the indicies of Unicode characters to the value array.
See Also:   CompactShortArray
See Also:   CompactByteArray
version:
   1.22 10/10/06
author:
   Helena Shih


Field Summary
final public static  intUNICODECOUNT
     The total number of Unicode characters.

Constructor Summary
public  CompactIntArray()
     Default constructor for CompactIntArray, the default value of the compact array is 0.
public  CompactIntArray(int defaultValue)
     Constructor for CompactIntArray.
public  CompactIntArray(short indexArray, int newValues)
     Constructor for CompactIntArray.

Method Summary
public  Objectclone()
    
public  voidcompact()
     Compact the array.
public  intelementAt(char index)
     Get the mapped value of a Unicode character.
public  booleanequals(Object obj)
     Compares the equality of two compact array objects.
Parameters:
  obj - the compact array object to be compared with this.
public  shortgetIndexArray()
     For internal use only.
public  intgetStringArray()
     For internal use only.
public  inthashCode()
    
public  voidsetElementAt(char index, int value)
     Set a new value for a Unicode character.
public  voidsetElementAt(char start, char end, int value)
     Set new values for a range of Unicode character.

Field Detail
UNICODECOUNT
final public static int UNICODECOUNT(Code)
The total number of Unicode characters.




Constructor Detail
CompactIntArray
public CompactIntArray()(Code)
Default constructor for CompactIntArray, the default value of the compact array is 0.



CompactIntArray
public CompactIntArray(int defaultValue)(Code)
Constructor for CompactIntArray.
Parameters:
  defaultValue - the default value of the compact array.



CompactIntArray
public CompactIntArray(short indexArray, int newValues)(Code)
Constructor for CompactIntArray.
Parameters:
  indexArray - the indicies of the compact array.
Parameters:
  newValues - the values of the compact array.
exception:
  IllegalArgumentException - If the index is out of range.




Method Detail
clone
public Object clone()(Code)
Overrides Cloneable



compact
public void compact()(Code)
Compact the array.



elementAt
public int elementAt(char index)(Code)
Get the mapped value of a Unicode character.
Parameters:
  index - the character to get the mapped value with the mapped value of the given character



equals
public boolean equals(Object obj)(Code)
Compares the equality of two compact array objects.
Parameters:
  obj - the compact array object to be compared with this. true if the current compact array object is the sameas the compact array object obj; false otherwise.



getIndexArray
public short getIndexArray()(Code)
For internal use only. Do not modify the result, the behavior of modified results are undefined.



getStringArray
public int getStringArray()(Code)
For internal use only. Do not modify the result, the behavior of modified results are undefined.



hashCode
public int hashCode()(Code)
Generates the hash code for the compact array object



setElementAt
public void setElementAt(char index, int value)(Code)
Set a new value for a Unicode character. Set automatically expands the array if it is compacted.
Parameters:
  index - the character to set the mapped value with
Parameters:
  value - the new mapped value



setElementAt
public void setElementAt(char start, char end, int value)(Code)
Set new values for a range of Unicode character.
Parameters:
  start - the startting offset of the range
Parameters:
  end - the ending offset of the range
Parameters:
  value - the new mapped value



Methods inherited from java.lang.Object
public boolean equals(Object obj)(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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