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Class sun.tools.debug.UnboundedArrayOfLong 

java.lang.Object
   |
   +----sun.tools.debug.UnboundedArrayOfLong
public class UnboundedArrayOfLong
extends Object
This class implements an array of integers capable of growing forwards or backwards and having any integer value (positive or negative) as an index. It is designed to be space efficient for ranges of indicies at any starting point but compact within the range (ie. 900000 to 900010, or -5400 to -5300). Growth is automatic and will never throw an array bounds error. Not thread safe, synchronization left to user.

Variable Index

o arr
o first
o last

Constructor Index

o UnboundedArrayOfLong()
Constructor No initial guesses for first and last indicies, determined during use.
o UnboundedArrayOfLong(long, long)
Constructor Specified initial guesses for first and last indicies.

Method Index

o at(long)
Return the int at the specified index.
o getFirstIndex()
Return the lowest allocated index.
o getLastIndex()
Return the highest allocated index.
o grow(long, long)
Grow to have the specified new first and last indicies.
o setAt(long, int)
Set the value at the specified index.

Variables

o first 
 protected long first
o last 
 protected long last
o arr 
 protected Hashtable arr

Constructors

o UnboundedArrayOfLong 
 public UnboundedArrayOfLong(long first,
                             long last)
Constructor Specified initial guesses for first and last indicies.

o UnboundedArrayOfLong 
 public UnboundedArrayOfLong()
Constructor No initial guesses for first and last indicies, determined during use.

Methods

o at 
 public int at(long idx)
Return the int at the specified index. All unset elements have the value zero.

o setAt 
 public void setAt(long idx,
                   int value)
Set the value at the specified index. Grow as needed.

o getFirstIndex 
 public long getFirstIndex()
Return the lowest allocated index.

o getLastIndex 
 public long getLastIndex()
Return the highest allocated index.

o grow 
 protected void grow(long newFirst,
                     long newLast)
Grow to have the specified new first and last indicies. 

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