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Java Standard Edition (SE)

RenderingHints.Key


java.awt

Class 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 and Description
      protected Key(int privatekey)
      Construct a key using the indicated private key.
    • Constructor Detail

      • 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 Detail

      • 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.
      • 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 - the reference object with which to compare.
        Returns:
        true if this object is the same as the obj argument; false otherwise.
        See Also:
        Object.hashCode(), HashMap


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