org.apache.uima.cas.impl
Class Heap

java.lang.Object
  org.apache.uima.cas.impl.Heap

public final class Heap
extends java.lang.Object

A heap for CAS.

This class is agnostic about what you store on the heap. It only copies values from integer arrays.

Field Summary

static int	DEFAULT_SIZE Default size of the heap.
static int	MIN_SIZE Minimum size of the heap.

Constructor Summary

Heap()
Default constructor.

Heap(int initialSize)
Constructor lets you set initial heap size.

Method Summary

int	add(int[] fs) Add a structure to the heap.
int	add(int len, int val) Reserve space for len items on the heap and set the first item to val.
int	getNextId()
void	grow(int len)
void	reset() Reset the temporary heap.

Methods inherited from class java.lang.Object

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

Field Detail

MIN_SIZE

public static final int MIN_SIZE

Minimum size of the heap. Currently set to 1000.

See Also:

Constant Field Values

DEFAULT_SIZE

public static final int DEFAULT_SIZE

Default size of the heap. Currently set to 500000(2 MB).

See Also:

Constant Field Values

Constructor Detail

Heap

public Heap()

Default constructor.

Heap

public Heap(int initialSize)

Constructor lets you set initial heap size. Use only if you know what you're doing.

Parameters:

initialSize - The initial heap size. If this is smaller than the MIN_SIZE, the default will be used instead.

Method Detail

reset

public void reset()

Reset the temporary heap.

add

public int add(int[] fs)

Add a structure to the heap.

Parameters:

fs - The input structure.

Returns:

The position where the structure was added, i.e., a pointer to the first element of the structure.

add

public int add(int len,
               int val)

Reserve space for len items on the heap and set the first item to val. The other items are set to 0.

Parameters:

len - The length of the new structure.

val - The value of the first cell in the new structure.

Returns:

The position where the structure was added, i.e., a pointer to the first element of the structure.

getNextId

public int getNextId()

grow

public void grow(int len)