- java.lang.Object
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- java.awt.BufferCapabilities.FlipContents
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- 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
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Field Summary
Fields Modifier and Type Field Description static BufferCapabilities.FlipContentsBACKGROUNDWhen flip contents areBACKGROUND, the contents of the back buffer are cleared with the background color after flipping.static BufferCapabilities.FlipContentsCOPIEDWhen flip contents areCOPIED, the contents of the back buffer are copied to the front buffer when flipping.static BufferCapabilities.FlipContentsPRIORWhen flip contents arePRIOR, the contents of the back buffer are the prior contents of the front buffer (a true page flip).static BufferCapabilities.FlipContentsUNDEFINEDWhen flip contents areUNDEFINED, the contents of the back buffer are undefined after flipping.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description inthashCode()Returns a hash code value for the object.StringtoString()Returns a string representation of the object.
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Field Detail
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UNDEFINED
public static final BufferCapabilities.FlipContents UNDEFINED
When flip contents areUNDEFINED, the contents of the back buffer are undefined after flipping.
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BACKGROUND
public static final BufferCapabilities.FlipContents BACKGROUND
When flip contents areBACKGROUND, the contents of the back buffer are cleared with the background color after flipping.
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PRIOR
public static final BufferCapabilities.FlipContents PRIOR
When flip contents arePRIOR, the contents of the back buffer are the prior contents of the front buffer (a true page flip).
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COPIED
public static final BufferCapabilities.FlipContents COPIED
When flip contents areCOPIED, the contents of the back buffer are copied to the front buffer when flipping.
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Method Detail
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hashCode
public int hashCode()
Description copied from class:ObjectReturns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided byHashMap.The general contract of
hashCodeis:- Whenever it is invoked on the same object more than once during
an execution of a Java application, the
hashCodemethod must consistently return the same integer, provided no information used inequalscomparisons 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 thehashCodemethod 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 thehashCodemethod 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
Objectdoes 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:
hashCodein classObject- Returns:
- a hash code value for this object.
- See Also:
Object.equals(java.lang.Object),System.identityHashCode(java.lang.Object)
- Whenever it is invoked on the same object more than once during
an execution of a Java application, the
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toString
public String toString()
Description copied from class:ObjectReturns a string representation of the object. In general, thetoStringmethod 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
toStringmethod for classObjectreturns 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())
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