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

    Constructors
    Constructor
    Description
    ProxyLazyValue(String c)
    Creates a LazyValue which will construct an instance when asked.
    ProxyLazyValue(String c, Object[] o)
    Creates a LazyValue which will construct an instance when asked.
    ProxyLazyValue(String c, String m)
    Creates a LazyValue which will construct an instance when asked.
    ProxyLazyValue(String c, String m, Object[] o)
    Creates a LazyValue which will construct an instance when asked.

  • Method Summary

    Modifier and Type
    Method
    Description
    Object
    createValue(UIDefaults table)
    Creates the value retrieved from the UIDefaults table.

    Methods declared in class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    Modifier and Type
    Method
    Description
    protected Object
    clone()
    Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
    boolean
    equals(Object o)
    Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
    protected void
    finalize()
    Deprecated, for removal: This API element is subject to removal in a future version.
    May cause performance issues, deadlocks and hangs.
    final Class<? extends Object>
    getClass()
    Answers the unique instance of java.lang.Class which represents the class of the receiver.
    int
    hashCode()
    Answers an integer hash code for the receiver.
    final void
    notify()
    Causes one thread which is waiting on the receiver to be made ready to run.
    final void
    notifyAll()
    Causes all threads which are waiting on the receiver to be made ready to run.
    String
    toString()
    Answers a string containing a concise, human-readable description of the receiver.
    final void
    wait()
    Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by notify or notifyAll).
    final void
    wait(long time)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.
    final void
    wait(long time, int frac)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.

  • Constructor Details

    • ProxyLazyValue

      public ProxyLazyValue(String c)
      Creates a LazyValue which will construct an instance when asked.
      Parameters:
      c - a String 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 - a String specifying the classname of the class containing a static method to be called for instance creation
      m - a String 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 - a String specifying the classname of the instance to be created on demand
      o - an array of Objects to be passed as parameters 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 - a String specifying the classname of the class containing a static method to be called for instance creation.
      m - a String specifying the static method to be called on class c
      o - an array of Objects to be passed as parameters to the static method in class c

  • Method Details

    • 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 interface UIDefaults.LazyValue
      Parameters:
      table - a UIDefaults table
      Returns:
      the created Object