org.apache.tools.ant.util
Class LazyHashtable

java.lang.Object
  |
  +--java.util.Dictionary
        |
        +--java.util.Hashtable
              |
              +--org.apache.tools.ant.util.LazyHashtable

All Implemented Interfaces:

java.lang.Cloneable, java.util.Map, java.io.Serializable

public class LazyHashtable

extends java.util.Hashtable

Hashtable implementation that allows delayed construction of expensive objects All operations that need access to the full list of objects will call initAll() first. Get and put are cheap.

Since:

Ant 1.6

See Also:

Serialized Form

Field Summary

protected boolean

initAllDone

Constructor Summary

LazyHashtable()

Method Summary

boolean	contains(java.lang.Object value)
boolean	containsKey(java.lang.Object value)
boolean	containsValue(java.lang.Object value) Delegates to contains.
java.util.Enumeration	elements()
protected void	initAll() Used to be part of init.
boolean	isEmpty()
java.util.Enumeration	keys()
int	size()

Methods inherited from class java.util.Hashtable

clear, clone, entrySet, equals, get, hashCode, keySet, put, putAll, rehash, remove, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

initAllDone

protected boolean initAllDone

Constructor Detail

LazyHashtable

public LazyHashtable()

Method Detail

initAll

protected void initAll()

Used to be part of init. It must be done once - but we delay it until we do need _all_ tasks. Otherwise we just get the tasks that we need, and avoid costly init.

elements

public java.util.Enumeration elements()

Overrides:

elements in class java.util.Hashtable

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Map

Overrides:

isEmpty in class java.util.Hashtable

size

public int size()

Specified by:

size in interface java.util.Map

Overrides:

size in class java.util.Hashtable

contains

public boolean contains(java.lang.Object value)

Overrides:

contains in class java.util.Hashtable

containsKey

public boolean containsKey(java.lang.Object value)

Specified by:

containsKey in interface java.util.Map

Overrides:

containsKey in class java.util.Hashtable

containsValue

public boolean containsValue(java.lang.Object value)

Delegates to contains.

Specified by:

containsValue in interface java.util.Map

Overrides:

containsValue in class java.util.Hashtable

keys

public java.util.Enumeration keys()

Overrides:

keys in class java.util.Hashtable