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## javax.swing
Interface UIDefaults.LazyValue

All Known Implementing Classes:
  UIDefaults.LazyInputMap, UIDefaults.ProxyLazyValue

Enclosing interface:
  UIDefaults

public static interface UIDefaults.LazyValue

This class enables one to store an entry in the defaults table that isn't constructed until the first time it's looked up with one of the `getXXX(key)` methods. Lazy values are useful for defaults that are expensive to construct or are seldom retrieved. The first time a `LazyValue` is retrieved its "real value" is computed by calling `LazyValue.createValue()` and the real value is used to replace the `LazyValue` in the `UIDefaults` table. Subsequent lookups for the same key return the real value. Here's an example of a `LazyValue` that constructs a `Border`:

      Object borderLazyValue = new UIDefaults.LazyValue() {
          public Object createValue(UIDefaults table) {
              return new BorderFactory.createLoweredBevelBorder();
          }
      };

      uiDefaultsTable.put("MyBorder", borderLazyValue);

See Also:
  `UIDefaults.get(java.lang.Object)`

Method Summary
`Object` | `createValue(UIDefaults table)` Creates the actual value retrieved from the `UIDefaults` table.

Method Detail

### createValue

    public Object createValue(UIDefaults table)

  Creates the actual value retrieved from the `UIDefaults` table. When an object that implements this interface is retrieved from the table, this method is used to create the real value, which is then stored in the table and returned to the calling method.

  Parameters:
    `table` - a `UIDefaults` table
  Returns:
    the created `Object`

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.