Class UIDefaults.ProxyLazyValue
- java.lang.Object
-
- javax.swing.UIDefaults.ProxyLazyValue
- All Implemented Interfaces:
UIDefaults.LazyValue
- Enclosing class:
- UIDefaults
public static class UIDefaults.ProxyLazyValue extends Object implements UIDefaults.LazyValue
This class provides an implementation of LazyValue
which can be used to delay loading of the Class for the instance to be created. It also avoids creation of an anonymous inner class for the LazyValue
subclass. Both of these improve performance at the time that a a Look and Feel is loaded, at the cost of a slight performance reduction the first time createValue
is called (since Reflection APIs are used).
- Since:
- 1.3
Constructor Summary
Constructor | Description |
---|---|
ProxyLazyValue(String c) | Creates a |
ProxyLazyValue(String c,
Object[] o) | Creates a |
ProxyLazyValue(String c,
String m) | Creates a |
ProxyLazyValue(String c,
String m,
Object[] o) | Creates a |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
Object | createValue(UIDefaults table) | Creates the value retrieved from the |
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Constructor Detail
ProxyLazyValue
public ProxyLazyValue(String c)
Creates a LazyValue
which will construct an instance when asked.
- Parameters:
-
c
- aString
specifying the classname of the instance to be created on demand
ProxyLazyValue
public ProxyLazyValue(String c, String m)
Creates a LazyValue
which will construct an instance when asked.
- Parameters:
-
c
- aString
specifying the classname of the class containing a static method to be called for instance creation -
m
- aString
specifying the static method to be called on class c
ProxyLazyValue
public ProxyLazyValue(String c, Object[] o)
Creates a LazyValue
which will construct an instance when asked.
- Parameters:
-
c
- aString
specifying the classname of the instance to be created on demand -
o
- an array ofObjects
to be passed as paramaters to the constructor in class c
ProxyLazyValue
public ProxyLazyValue(String c, String m, Object[] o)
Creates a LazyValue
which will construct an instance when asked.
- Parameters:
-
c
- aString
specifying the classname of the class containing a static method to be called for instance creation. -
m
- aString
specifying the static method to be called on class c -
o
- an array ofObjects
to be passed as paramaters to the static method in class c
Method Detail
createValue
public Object createValue(UIDefaults table)
Creates the value retrieved from the UIDefaults
table. The object is created each time it is accessed.
- Specified by:
-
createValue
in interfaceUIDefaults.LazyValue
- Parameters:
-
table
- aUIDefaults
table - Returns:
- the created
Object