com.ximpleware

Class FastLongBuffer

java.lang.Object

com.ximpleware.FastLongBuffer

All Implemented Interfaces:

com.ximpleware.ILongBuffer

public class FastLongBuffer
extends java.lang.Object
implements com.ximpleware.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.
boolean	resize(int newSz) Set the size of FastLongBuffer to newSz if newSz is less than the capacity, otherwise return false
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 final void append(long i)

Append an integer to the end of this array buffer

Parameters:

i - long

append

public void append(long[] long_array)

Append single long to the end of array buffer.

Parameters:

long_array - long[]

clear

public final void clear()

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

getCapacity

public final 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 final int getPageSize()

Get the buffer page size.

Returns:

int

longAt

public final long longAt(int index)

Get the long val at given index value.

Specified by:

longAt in interface com.ximpleware.ILongBuffer

Parameters:

index - int

Returns:

long

lower32At

public final int lower32At(int index)

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

Specified by:

lower32At in interface com.ximpleware.ILongBuffer

Parameters:

index - int

Returns:

int

modifyEntry

public final void modifyEntry(int index,
                              long newValue)

Modify the value at the index to a new val.

Specified by:

modifyEntry in interface com.ximpleware.ILongBuffer

Parameters:

index - int

newValue - long

resize

public final boolean resize(int newSz)

Set the size of FastLongBuffer to newSz if newSz is less than the capacity, otherwise return false

Parameters:

newSz -

Returns:

status of resize

size

public final int size()

Get the total number of longs in the buffer.

Specified by:

size in interface com.ximpleware.ILongBuffer

Returns:

int

toLongArray

public long[] toLongArray()

Convert all longs into a long array.

Returns:

long[]

upper32At

public final int upper32At(int index)

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

Specified by:

upper32At in interface com.ximpleware.ILongBuffer

Parameters:

index - int

Returns:

int