org.pentaho.reporting.libraries.base.util

Class Empty

public final class Empty extends Object

Class which holds a static reference to a set of empty objects. This is created for performance reasons. Using this class will prevent creating duplicated "empty" object.

Author: David Kincade

Field Summary
static List	LIST An empty List.
static Map	MAP An empty Map.
static String	STRING The empty string.
static String[]	STRING_ARRAY An empty array of Strings.

Field Detail

LIST

public static final List LIST

Deprecated: this is a redeclaration of the Collections.EMPTY_LIST field and should be killed.

An empty List.

UNKNOWN: PublicStaticCollectionField

MAP

public static final Map MAP

An empty Map. (Collections.EMPTY_MAP is not available until JDK 1.4)

UNKNOWN: PublicStaticCollectionField

STRING

public static final String STRING

The empty string.

STRING_ARRAY

public static final String[] STRING_ARRAY

An empty array of Strings.