Class RenderingHints.Key

java.lang.Object
java.awt.RenderingHints.Key
Enclosing class:
RenderingHints
public abstract static class RenderingHints.Key extends Object
Defines the base type of all keys used along with the RenderingHints class to control various algorithm choices in the rendering and imaging pipelines. Instances of this class are immutable and unique which means that tests for matches can be made using the == operator instead of the more expensive equals() method.

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    Key(int privatekey)
    Construct a key using the indicated private key.

  • Method Summary

    Modifier and Type
    Method
    Description
    final boolean
    equals(Object o)
    The equals method for all Key objects will return the same result as the equality operator '=='.
    final int
    hashCode()
    The hash code for all Key objects will be the same as the system identity code of the object as defined by the System.identityHashCode() method.
    protected final int
    intKey()
    Returns the private integer key that the subclass instantiated this Key with.
    abstract boolean
    isCompatibleValue(Object val)
    Returns true if the specified object is a valid value for this Key.

    Methods declared in class Object

    clone, finalize, getClass, 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.
    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.
    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

    • Key

      protected Key(int privatekey)
      Construct a key using the indicated private key. Each subclass of Key maintains its own unique domain of integer keys. No two objects with the same integer key and of the same specific subclass can be constructed. An exception will be thrown if an attempt is made to construct another object of a given class with the same integer key as a pre-existing instance of that subclass of Key.
      Parameters:
      privatekey - the specified key

  • Method Details

    • isCompatibleValue

      public abstract boolean isCompatibleValue(Object val)
      Returns true if the specified object is a valid value for this Key.
      Parameters:
      val - the Object to test for validity
      Returns:
      true if val is valid; false otherwise.

    • intKey

      protected final int intKey()
      Returns the private integer key that the subclass instantiated this Key with.
      Returns:
      the private integer key that the subclass instantiated this Key with.

    • hashCode

      public final int hashCode()
      The hash code for all Key objects will be the same as the system identity code of the object as defined by the System.identityHashCode() method.
      Overrides:
      hashCode in class Object
      Returns:
      the receiver's hash.
      See Also:

    • equals

      public final boolean equals(Object o)
      The equals method for all Key objects will return the same result as the equality operator '=='.
      Overrides:
      equals in class Object
      Parameters:
      o - Object the object to compare with this object.
      Returns:
      boolean true if the object is the same as this object false if it is different from this object.
      See Also: