- 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 ofLazyValue
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 theLazyValue
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 timecreateValue
is called (since Reflection APIs are used).- Since:
- 1.3
-
-
Constructor Summary
Constructors Constructor and Description UIDefaults.ProxyLazyValue(String c)
Creates aLazyValue
which will construct an instance when asked.UIDefaults.ProxyLazyValue(String c, Object[] o)
Creates aLazyValue
which will construct an instance when asked.UIDefaults.ProxyLazyValue(String c, String m)
Creates aLazyValue
which will construct an instance when asked.UIDefaults.ProxyLazyValue(String c, String m, Object[] o)
Creates aLazyValue
which will construct an instance when asked.
-
-
-
Constructor Detail
-
UIDefaults.ProxyLazyValue
public UIDefaults.ProxyLazyValue(String c)
Creates aLazyValue
which will construct an instance when asked.- Parameters:
c
- aString
specifying the classname of the instance to be created on demand
-
UIDefaults.ProxyLazyValue
public UIDefaults.ProxyLazyValue(String c, String m)
Creates aLazyValue
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 creationm
- aString
specifying the static method to be called on class c
-
UIDefaults.ProxyLazyValue
public UIDefaults.ProxyLazyValue(String c, Object[] o)
Creates aLazyValue
which will construct an instance when asked.- Parameters:
c
- aString
specifying the classname of the instance to be created on demando
- an array ofObjects
to be passed as paramaters to the constructor in class c
-
UIDefaults.ProxyLazyValue
public UIDefaults.ProxyLazyValue(String c, String m, Object[] o)
Creates aLazyValue
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 co
- 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 theUIDefaults
table. The object is created each time it is accessed.- Specified by:
createValue
in interfaceUIDefaults.LazyValue
- Parameters:
table
- aUIDefaults
table- Returns:
- the created
Object
-
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Document created the 11/06/2005, last modified the 04/03/2020
Source of the printed document:https://www.gaudry.be/en/java-api-rf-javax/swing/uidefaults.proxylazyvalue.html
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