public class HashAttributeSet extends Object implements AttributeSet, Serializable
AttributeSet
implementation with characteristics of a hash map.
| Modifier | Constructor and Description |
|---|---|
|
HashAttributeSet()
Construct a new, empty attribute set.
|
|
HashAttributeSet(Attribute attribute)
Construct a new attribute set,
initially populated with the given attribute.
|
|
HashAttributeSet(Attribute[] attributes)
Construct a new attribute set,
initially populated with the values from the
given array.
|
protected |
HashAttributeSet(Attribute[] attributes,
Class<?> interfaceName)
Construct a new attribute set, where the members of the attribute
set are restricted to the given interface.
|
protected |
HashAttributeSet(Attribute attribute,
Class<?> interfaceName)
Construct a new attribute set, initially populated with the given
attribute, where the members of the attribute set are restricted to the
given interface.
|
|
HashAttributeSet(AttributeSet attributes)
Construct a new attribute set,
initially populated with the values from the given set.
|
protected |
HashAttributeSet(AttributeSet attributes,
Class<?> interfaceName)
Construct a new attribute set, initially populated with the
values from the given set where the members of the attribute
set are restricted to the given interface.
|
protected |
HashAttributeSet(Class<?> interfaceName)
Construct a new, empty attribute set, where the members of
the attribute set are restricted to the given interface.
|
| Modifier and Type | Method and Description |
|---|---|
boolean |
add(Attribute attribute)
Adds the specified attribute to this attribute set if it is not
already present, first removing any existing in the same
attribute category as the specified attribute value.
|
boolean |
addAll(AttributeSet attributes)
Adds all of the elements in the specified set to this attribute.
|
void |
clear()
Removes all attributes from this attribute set.
|
boolean |
containsKey(Class<?> category)
Returns true if this attribute set contains an
attribute for the specified category.
|
boolean |
containsValue(Attribute attribute)
Returns true if this attribute set contains the given
attribute.
|
boolean |
equals(Object object)
Compares the specified object with this attribute set for equality.
|
Attribute |
get(Class<?> category)
Returns the attribute value which this attribute set contains in the
given attribute category.
|
int |
hashCode()
Returns the hash code value for this attribute set.
|
boolean |
isEmpty()
Returns true if this attribute set contains no attributes.
|
boolean |
remove(Attribute attribute)
Removes the specified attribute from this attribute set if
present.
|
boolean |
remove(Class<?> category)
Removes any attribute for this category from this attribute set if
present.
|
int |
size()
Returns the number of attributes in this attribute set.
|
Attribute[] |
toArray()
Returns an array of the attributes contained in this set.
|
public HashAttributeSet()
public HashAttributeSet(Attribute attribute)
attribute - Attribute value to add to the set.NullPointerException - (unchecked exception) Thrown if attribute is null.public HashAttributeSet(Attribute[] attributes)
attributes array to the set in
sequence, starting at index 0. Thus, later array elements may replace
earlier array elements if the array contains duplicate attribute
values or attribute categories.attributes - Array of attribute values to add to the set.
If null, an empty attribute set is constructed.NullPointerException - (unchecked exception) Thrown if any element of
attributes is null.public HashAttributeSet(AttributeSet attributes)
attributes - Set of attributes from which to initialise this set.
If null, an empty attribute set is constructed.protected HashAttributeSet(Class<?> interfaceName)
interfaceName - The interface of which all members of this
attribute set must be an instance. It is assumed to
be interface Attribute or a
subinterface thereof.NullPointerException - if interfaceName is null.protected HashAttributeSet(Attribute attribute, Class<?> interfaceName)
attribute - Attribute value to add to the set.interfaceName - The interface of which all members of this
attribute set must be an instance. It is assumed to
be interface Attribute or a
subinterface thereof.NullPointerException - (unchecked exception) Thrown if attribute is null.NullPointerException - if interfaceName is null.ClassCastException - (unchecked exception) Thrown if attribute is not an
instance of interfaceName.protected HashAttributeSet(Attribute[] attributes, Class<?> interfaceName)
attributes array to the set in
sequence, starting at index 0. Thus, later array elements may replace
earlier array elements if the array contains duplicate attribute
values or attribute categories.attributes - Array of attribute values to add to the set. If
null, an empty attribute set is constructed.interfaceName - The interface of which all members of this
attribute set must be an instance. It is assumed to
be interface Attribute or a
subinterface thereof.NullPointerException - (unchecked exception) Thrown if any element of
attributes is null.NullPointerException - if interfaceName is null.ClassCastException - (unchecked exception) Thrown if any element of
attributes is not an instance of
interfaceName.protected HashAttributeSet(AttributeSet attributes, Class<?> interfaceName)
attributes - set of attribute values to initialise the set. If
null, an empty attribute set is constructed.interfaceName - The interface of which all members of this
attribute set must be an instance. It is assumed to
be interface Attribute or a
subinterface thereof.ClassCastException - (unchecked exception) Thrown if any element of
attributes is not an instance of
interfaceName.public Attribute get(Class<?> category)
get in interface AttributeSetcategory - Attribute category whose associated attribute value
is to be returned. It must be a
Class
that implements interface Attribute.NullPointerException - (unchecked exception) Thrown if the category is null.ClassCastException - (unchecked exception) Thrown if the category is not a
Class that implements interface Attribute.public boolean add(Attribute attribute)
add in interface AttributeSetattribute - Attribute value to be added to this attribute set.NullPointerException - (unchecked exception) Thrown if the attribute is null.UnmodifiableSetException - (unchecked exception) Thrown if this attribute set does not support
the add() operation.public boolean remove(Class<?> category)
category is null, then
remove() does nothing and returns false.remove in interface AttributeSetcategory - Attribute category to be removed from this
attribute set.UnmodifiableSetException - (unchecked exception) Thrown if this attribute set does not
support the remove() operation.public boolean remove(Attribute attribute)
attribute is null, then
remove() does nothing and returns false.remove in interface AttributeSetattribute - Attribute value to be removed from this attribute set.UnmodifiableSetException - (unchecked exception) Thrown if this attribute set does not
support the remove() operation.public boolean containsKey(Class<?> category)
containsKey in interface AttributeSetcategory - whose presence in this attribute set is
to be tested.public boolean containsValue(Attribute attribute)
containsValue in interface AttributeSetattribute - value whose presence in this attribute set is
to be tested.public boolean addAll(AttributeSet attributes)
add(Attribute)
operation had been applied to this attribute set successively with
each element from the specified set.
The behavior of the addAll(AttributeSet)
operation is unspecified if the specified set is modified while
the operation is in progress.
If the addAll(AttributeSet) operation throws an exception,
the effect on this attribute set's state is implementation dependent;
elements from the specified set before the point of the exception may
or may not have been added to this attribute set.
addAll in interface AttributeSetattributes - whose elements are to be added to this attribute
set.UnmodifiableSetException - (Unchecked exception) Thrown if this attribute set does not
support the addAll(AttributeSet) method.NullPointerException - (Unchecked exception) Thrown if some element in the specified
set is null, or the set is null.add(Attribute)public int size()
size in interface AttributeSetpublic Attribute[] toArray()
AttributeSettoArray in interface AttributeSetpublic void clear()
clear in interface AttributeSetUnmodifiableSetException - (unchecked exception) Thrown if this attribute set does not support
the clear() operation.public boolean isEmpty()
isEmpty in interface AttributeSetpublic boolean equals(Object object)
equals in interface AttributeSetequals in class Objectobject - to be compared for equality with this attribute set.Object.hashCode(),
HashMappublic int hashCode()
Object.hashCode().hashCode in interface AttributeSethashCode in class ObjectObject.equals(java.lang.Object),
System.identityHashCode(java.lang.Object) Submit a bug or feature
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