com.aspc.DBObj.Internal

Class LayerFieldRecycler

java.lang.Object

com.aspc.DBObj.Internal.LayerFieldRecycler

public class LayerFieldRecycler
extends java.lang.Object

Recycle the layer field objects by placing each LayerField object in a common data table.
THREAD MODE: MULTI-THREADED

Since:

17 June 2007

Author:

Nigel Leck

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	ENV_RECYCLER_MINIMUM_CHECK_SIZE The environment variable to control the MINIMUM size of the overhead before we will check the if this recycler is too Expensive.
static int	MINIMUM_CHECK_SIZE The MINIMUM size of the overhead before we will check the if this recycler is too Expensive.

Constructor Summary

Constructors

Constructor and Description
LayerFieldRecycler(DBField field) Create a new recycler for a field.

Method Summary

Modifier and Type	Method and Description
long	getRecycleCount() The count of recycled values
long	getUniqueCount() The count of unique values
boolean	isTooExspensive() is the recycler too expensive and should be discontinued ?
LayerField	recycle(LayerField lf) Recycle the layer field.

Methods inherited from class java.lang.Object

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

Field Detail

ENV_RECYCLER_MINIMUM_CHECK_SIZE

public static final java.lang.String ENV_RECYCLER_MINIMUM_CHECK_SIZE

The environment variable to control the MINIMUM size of the overhead before we will check the if this recycler is too Expensive.

See Also:

Constant Field Values

MINIMUM_CHECK_SIZE

public static final int MINIMUM_CHECK_SIZE

The MINIMUM size of the overhead before we will check the if this recycler is too Expensive.

Constructor Detail

LayerFieldRecycler

public LayerFieldRecycler(DBField field)

Create a new recycler for a field.

Parameters:

field - The field to recycle

Method Detail

getRecycleCount

public long getRecycleCount()

The count of recycled values

Returns:

The count of values that were recycled.

getUniqueCount

public long getUniqueCount()

The count of unique values

Returns:

The count of values that were recycled.

recycle

public LayerField recycle(LayerField lf)

Recycle the layer field.

Parameters:

lf - the layer field

Returns:

The recycled field layer.

isTooExspensive

public boolean isTooExspensive()

is the recycler too expensive and should be discontinued ?

Returns:

true if the recycler is not working out.