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
Modifier and Type | Field | Description |
---|---|---|
static BufferCapabilities.FlipContents | BACKGROUND | When flip contents are |
static BufferCapabilities.FlipContents | COPIED | When flip contents are |
static BufferCapabilities.FlipContents | PRIOR | When flip contents are |
static BufferCapabilities.FlipContents | UNDEFINED | When flip contents are |
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 Detail
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.
Method Detail
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 inequals
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(Object)
method, then calling thehashCode
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
Object.equals(java.lang.Object)
method, then calling thehashCode
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.
As much as is reasonably practical, the hashCode method defined by class Object
does return distinct integers for distinct objects. (The hashCode may or may not be implemented as some function of an object's memory address at some point in time.)
- Overrides:
-
hashCode
in classObject
- 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. In general, the toString
method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.
The toString
method for class Object
returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@
', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:
getClass().getName() + '@' + Integer.toHexString(hashCode())