Serializable
, AttributeSet
HashDocAttributeSet
, HashPrintJobAttributeSet
, HashPrintRequestAttributeSet
, HashPrintServiceAttributeSet
public class HashAttributeSet extends Object implements AttributeSet, Serializable
HashAttributeSet
provides an AttributeSet
implementation with characteristics of a hash map.Modifier | Constructor | Description |
---|---|---|
Construct a new, empty attribute set. |
||
protected |
Construct a new, empty attribute set, where the members of the attribute set are restricted to the given interface. |
|
Construct a new attribute set, initially populated with the given attribute. |
||
Construct a new attribute set, initially populated with the values from the given array. |
||
protected |
Construct a new attribute set, where the members of the attribute set are restricted to the given interface. |
|
protected |
Construct a new attribute set, initially populated with the given attribute, where the members of the attribute set are restricted to the given interface. |
|
Construct a new attribute set, initially populated with the values from the given set. |
||
protected |
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. |
Modifier and Type | Method | Description |
---|---|---|
boolean |
add |
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 |
Adds all of the elements in the specified set to this attribute. |
void |
clear() |
Removes all attributes from this attribute set. |
boolean |
containsKey |
Returns true if this attribute set contains an attribute for the specified category. |
boolean |
containsValue |
Returns true if this attribute set contains the given attribute. |
boolean |
equals |
Compares the specified object with this attribute set for equality. |
Attribute |
get |
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 |
Removes any attribute for this category from this attribute set if present. |
boolean |
remove |
Removes the specified attribute 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 setNullPointerException
- 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
- 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 setinterfaceName
- 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 attribute
or interfaceName
are null
ClassCastException
- 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
- if interfaceName
is null
, or if any element of attributes
is null
ClassCastException
- 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
- if any element of attributes
is not an instance of interfaceName
public Attribute get(Class<?> category)
null
if this attribute set does not contain any attribute value in the given attribute category.get
in interface AttributeSet
category
- attribute category whose associated attribute value is to be returned. It must be a Class
that implements interface Attribute
.null
if this attribute set does not contain any attribute value in the given attribute categoryNullPointerException
- if the category
is null
ClassCastException
- if the category
is not a Class
that implements interface Attribute
public boolean add(Attribute attribute)
add
in interface AttributeSet
attribute
- attribute value to be added to this attribute settrue
if this attribute set changed as a result of the call, i.e., the given attribute value was not already a member of this attribute setNullPointerException
- if the attribute
is null
UnmodifiableSetException
- if this attribute set does not support the add()
operationpublic boolean remove(Class<?> category)
category
is null
, then remove()
does nothing and returns false
.remove
in interface AttributeSet
category
- attribute category to be removed from this attribute settrue
if this attribute set changed as a result of the call, i.e., the given attribute category had been a member of this attribute setUnmodifiableSetException
- if this attribute set does not support the remove()
operationpublic boolean remove(Attribute attribute)
attribute
is null
, then remove()
does nothing and returns false
.remove
in interface AttributeSet
attribute
- attribute value to be removed from this attribute settrue
if this attribute set changed as a result of the call, i.e., the given attribute value had been a member of this attribute setUnmodifiableSetException
- if this attribute set does not support the remove()
operationpublic boolean containsKey(Class<?> category)
true
if this attribute set contains an attribute for the specified category.containsKey
in interface AttributeSet
category
- whose presence in this attribute set is to be testedtrue
if this attribute set contains an attribute value for the specified categorypublic boolean containsValue(Attribute attribute)
true
if this attribute set contains the given attribute.containsValue
in interface AttributeSet
attribute
- value whose presence in this attribute set is to be testedtrue
if this attribute set contains the given attribute valuepublic 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 AttributeSet
attributes
- whose elements are to be added to this attribute settrue
if this attribute set changed as a result of the callUnmodifiableSetException
- if this attribute set does not support the addAll(AttributeSet)
methodNullPointerException
- if some element in the specified set is null
, or the set is null
public int size()
Integer.MAX_VALUE
elements, returns Integer.MAX_VALUE
.size
in interface AttributeSet
public Attribute[] toArray()
toArray
in interface AttributeSet
AttributeSet
is emptypublic void clear()
clear
in interface AttributeSet
UnmodifiableSetException
- if this attribute set does not support the clear()
operationpublic boolean isEmpty()
true
if this attribute set contains no attributes.isEmpty
in interface AttributeSet
true
if this attribute set contains no attributespublic boolean equals(Object object)
true
if the given object is also an attribute set and the two attribute sets contain the same attribute category-attribute value mappings. This ensures that the equals()
method works properly across different implementations of the AttributeSet
interface.equals
in interface AttributeSet
equals
in class Object
object
- to be compared for equality with this attribute settrue
if the specified object is equal to this attribute setpublic int hashCode()
AttributeSet
. This ensures that t1.equals(t2)
implies that t1.hashCode()==t2.hashCode()
for any two attribute sets t1
and t2
, as required by the general contract of Object.hashCode()
.hashCode
in interface AttributeSet
hashCode
in class Object
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