Module java.desktop
Package java.awt

# Class BufferCapabilities.FlipContents

java.lang.Object
java.awt.BufferCapabilities.FlipContents

Enclosing class:
  BufferCapabilities

public static final class BufferCapabilities.FlipContents extends Object
A type-safe enumeration of the possible back buffer contents after page-flipping

Since:
  1.4

## Field Summary

Fields
Modifier and Type
Field
Description
`static final BufferCapabilities.FlipContents`
`BACKGROUND`
When flip contents are `BACKGROUND`, the contents of the back buffer are cleared with the background color after flipping.
`static final BufferCapabilities.FlipContents`
`COPIED`
When flip contents are `COPIED`, the contents of the back buffer are copied to the front buffer when flipping.
`static final BufferCapabilities.FlipContents`
`PRIOR`
When flip contents are `PRIOR`, the contents of the back buffer are the prior contents of the front buffer (a true page flip).
`static final BufferCapabilities.FlipContents`
`UNDEFINED`
When flip contents are `UNDEFINED`, the contents of the back buffer are undefined after flipping.

## Method Summary

Modifier and Type
Method
Description
`int`
`hashCode()`
Returns a hash code value for the object.
`String`
`toString()`
Returns a string representation of the object.

### Methods declared in class java.lang.Object

`clone, equals, finalize, getClass, notify, notifyAll, wait, wait, wait`

## Field Details

### UNDEFINED

public static final BufferCapabilities.FlipContents UNDEFINED
When flip contents are `UNDEFINED`, the contents of the back buffer are undefined after flipping.

See Also:
  - `BufferCapabilities.isPageFlipping()`
  - `BufferCapabilities.getFlipContents()`
  - `BACKGROUND`
  - `PRIOR`
  - `COPIED`

### BACKGROUND

public static final BufferCapabilities.FlipContents BACKGROUND
When flip contents are `BACKGROUND`, the contents of the back buffer are cleared with the background color after flipping.

See Also:
  - `BufferCapabilities.isPageFlipping()`
  - `BufferCapabilities.getFlipContents()`
  - `UNDEFINED`
  - `PRIOR`
  - `COPIED`

### PRIOR

public static final BufferCapabilities.FlipContents PRIOR
When flip contents are `PRIOR`, the contents of the back buffer are the prior contents of the front buffer (a true page flip).

See Also:
  - `BufferCapabilities.isPageFlipping()`
  - `BufferCapabilities.getFlipContents()`
  - `UNDEFINED`
  - `BACKGROUND`
  - `COPIED`

### COPIED

public static final BufferCapabilities.FlipContents COPIED
When flip contents are `COPIED`, the contents of the back buffer are copied to the front buffer when flipping.

See Also:
  - `BufferCapabilities.isPageFlipping()`
  - `BufferCapabilities.getFlipContents()`
  - `UNDEFINED`
  - `BACKGROUND`
  - `PRIOR`

## Method Details

### hashCode

public int hashCode()
Description copied from class: `Object`
Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by `HashMap`.

The general contract of `hashCode` is:

- Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
- If two objects are equal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce the same integer result.
- It is not required that if two objects are unequal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Overrides:
  `hashCode` in class `Object`
Returns:
  a hash code value for this object.
See Also:
  - `Object.equals(java.lang.Object)`
  - `System.identityHashCode(java.lang.Object)`

### toString

public String toString()
Description copied from class: `Object`
Returns a string representation of the object.

Overrides:
  `toString` in class `Object`
Returns:
  a string representation of the object.