com.ximpleware.extended

Class FastLongBuffer

java.lang.Object

com.ximpleware.extended.FastLongBuffer

All Implemented Interfaces:

com.ximpleware.extended.ILongBuffer

public class FastLongBuffer
extends java.lang.Object
implements com.ximpleware.extended.ILongBuffer

A fast, unsynchronized, chunk-based long buffer for storing LCs and VTD. Creation date: (7/17/03 6:07:46 PM)

Constructor Summary

Constructors

Constructor and Description
FastLongBuffer() FastLongBuffer constructor comment.
FastLongBuffer(int e) Construct a FastLongBuffer instance with specified page size
FastLongBuffer(int e, int c) Construct a FastLongBuffer instance with specified page size

Method Summary

Modifier and Type	Method and Description
void	append(long i) Append an integer to the end of this array buffer
void	append(long[] long_array) Append single long to the end of array buffer.
void	clear() set teh size of long buffer to zero, capacity untouched so long buffer can be reused without any unnecessary and additional allocation
int	getCapacity() Get the capacity of the buffer.
long[]	getLongArray(int startingOffset, int len) Return a selected chuck of long buffer as a long array.
int	getPageSize() Get the buffer page size.
long	longAt(int index) Get the long val at given index value.
int	lower32At(int index) Get the lower 32 bit of the integer at the given index.
void	modifyEntry(int index, long newValue) Modify the value at the index to a new val.
int	size() Get the total number of longs in the buffer.
long[]	toLongArray() Convert all longs into a long array.
int	upper32At(int index) Return the upper 32 bit of the long at the index.

Methods inherited from class java.lang.Object

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

Constructor Detail

FastLongBuffer

public FastLongBuffer()

FastLongBuffer constructor comment.

FastLongBuffer

public FastLongBuffer(int e)

Construct a FastLongBuffer instance with specified page size

Parameters:

e - int (so that pageSize = (1<

FastLongBuffer

public FastLongBuffer(int e,
                      int c)

Construct a FastLongBuffer instance with specified page size

Parameters:

e - int (so that pageSize = (1<

c - int (suggest initial capacity of ArrayList

Method Detail

append

public void append(long[] long_array)

Append single long to the end of array buffer.

Parameters:

long_array - long[]

append

public void append(long i)

Append an integer to the end of this array buffer

Parameters:

i - long

getCapacity

public int getCapacity()

Get the capacity of the buffer.

Returns:

int

getLongArray

public long[] getLongArray(int startingOffset,
                           int len)

Return a selected chuck of long buffer as a long array.

Parameters:

startingOffset - int

len - int

Returns:

long[]

getPageSize

public int getPageSize()

Get the buffer page size.

Returns:

int

longAt

public long longAt(int index)

Get the long val at given index value.

Specified by:

longAt in interface com.ximpleware.extended.ILongBuffer

Parameters:

index - int

Returns:

long

lower32At

public int lower32At(int index)

Get the lower 32 bit of the integer at the given index.

Specified by:

lower32At in interface com.ximpleware.extended.ILongBuffer

Parameters:

index - int

Returns:

int

modifyEntry

public void modifyEntry(int index,
                        long newValue)

Modify the value at the index to a new val.

Specified by:

modifyEntry in interface com.ximpleware.extended.ILongBuffer

Parameters:

index - int

newValue - long

size

public int size()

Get the total number of longs in the buffer.

Specified by:

size in interface com.ximpleware.extended.ILongBuffer

Returns:

int

toLongArray

public long[] toLongArray()

Convert all longs into a long array.

Returns:

long[]

upper32At

public int upper32At(int index)

Return the upper 32 bit of the long at the index.

Specified by:

upper32At in interface com.ximpleware.extended.ILongBuffer

Parameters:

index - int

Returns:

int

clear

public void clear()

set teh size of long buffer to zero, capacity untouched so long buffer can be reused without any unnecessary and additional allocation