TransformAttribute (Java Platform SE 6) (original) (raw)

java.awt.font

Class TransformAttribute

java.lang.Object extended by java.awt.font.TransformAttribute

All Implemented Interfaces:

Serializable

public final class TransformAttribute

extends Object

implements Serializable

The TransformAttribute class provides an immutable wrapper for a transform so that it is safe to use as an attribute.

See Also:

Serialized Form

Field Summary
static TransformAttribute	IDENTITY A TransformAttribute representing the identity transform.

Constructor Summary
TransformAttribute(AffineTransform transform) Wraps the specified transform.

Method Summary
boolean	equals(Object rhs) Returns true if rhs is a TransformAttribute whose transform is equal to this TransformAttribute's transform.
AffineTransform	getTransform() Returns a copy of the wrapped transform.
int	hashCode() Returns a hash code value for the object.
boolean	isIdentity() Returns true if the wrapped transform is an identity transform.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, [wait](../../../java/lang/Object.html#wait%28long, int%29)

Field Detail

IDENTITY

public static final TransformAttribute IDENTITY

A TransformAttribute representing the identity transform.

Since:

1.6

Constructor Detail

TransformAttribute

public TransformAttribute(AffineTransform transform)

Wraps the specified transform. The transform is cloned and a reference to the clone is kept. The original transform is unchanged. If null is passed as the argument, this constructor behaves as though it were the identity transform. (Note that it is preferable to useIDENTITY in this case.)

Parameters:

transform - the specified AffineTransform to be wrapped, or null.

Method Detail

getTransform

public AffineTransform getTransform()

Returns a copy of the wrapped transform.

Returns:

a AffineTransform that is a copy of the wrapped transform of this TransformAttribute.

isIdentity

public boolean isIdentity()

Returns true if the wrapped transform is an identity transform.

Returns:

true if the wrapped transform is an identity transform; false otherwise.

Since:

1.4

hashCode

public int hashCode()

Description copied from class: [Object](../../../java/lang/Object.html#hashCode%28%29)

Returns a hash code value for the object. This method is supported for the benefit of hashtables such as those provided by java.util.Hashtable.

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(Object) 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 Object.equals(java.lang.Object) 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 hashtables.

As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)

Overrides:

[hashCode](../../../java/lang/Object.html#hashCode%28%29) in class [Object](../../../java/lang/Object.html "class in java.lang")

Returns:

a hash code value for this object.

Since:

1.6

equals

public boolean equals(Object rhs)

Returns true if rhs is a TransformAttribute whose transform is equal to this TransformAttribute's transform.

Overrides:

[equals](../../../java/lang/Object.html#equals%28java.lang.Object%29) in class [Object](../../../java/lang/Object.html "class in java.lang")

Parameters:

rhs - the object to compare to

Returns:

true if the argument is a TransformAttribute whose transform is equal to this TransformAttribute's transform.

Since:

1.6

See Also:

Object.hashCode(), Hashtable

Submit a bug or feature
For further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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