Class SimpleAttributeSet
- java.lang.Object
-
- javax.swing.text.SimpleAttributeSet
- All Implemented Interfaces:
-
Serializable
,Cloneable
,AttributeSet
,MutableAttributeSet
public class SimpleAttributeSet extends Object implements MutableAttributeSet, Serializable, Cloneable
A straightforward implementation of MutableAttributeSet using a hash table.
Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans™ has been added to the java.beans
package. Please see XMLEncoder
.
- See Also:
- Serialized Form
Nested Class Summary
Nested classes/interfaces declared in interface javax.swing.text.AttributeSet
AttributeSet.CharacterAttribute, AttributeSet.ColorAttribute, AttributeSet.FontAttribute, AttributeSet.ParagraphAttribute
Field Summary
Modifier and Type | Field | Description |
---|---|---|
static AttributeSet | EMPTY | An empty attribute set. |
Fields declared in interface javax.swing.text.AttributeSet
NameAttribute, ResolveAttribute
Constructor Summary
Constructor | Description |
---|---|
SimpleAttributeSet() | Creates a new attribute set. |
SimpleAttributeSet(AttributeSet source) | Creates a new attribute set based on a supplied set of attributes. |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
void | addAttribute(Object name,
Object value) | Adds an attribute to the list. |
void | addAttributes(AttributeSet attributes) | Adds a set of attributes to the list. |
Object | clone() | Clones a set of attributes. |
boolean | containsAttribute(Object name,
Object value) | Checks whether the attribute list contains a specified attribute name/value pair. |
boolean | containsAttributes(AttributeSet attributes) | Checks whether the attribute list contains all the specified name/value pairs. |
AttributeSet | copyAttributes() | Makes a copy of the attributes. |
boolean | equals(Object obj) | Compares this object to the specified object. |
Object | getAttribute(Object name) | Gets the value of an attribute. |
int | getAttributeCount() | Gets a count of the number of attributes. |
Enumeration<?> | getAttributeNames() | Gets the names of the attributes in the set. |
AttributeSet | getResolveParent() | Gets the resolving parent. |
int | hashCode() | Returns a hashcode for this set of attributes. |
boolean | isDefined(Object attrName) | Tells whether a given attribute is defined. |
boolean | isEmpty() | Checks whether the set of attributes is empty. |
boolean | isEqual(AttributeSet attr) | Compares two attribute sets. |
void | removeAttribute(Object name) | Removes an attribute from the list. |
void | removeAttributes(Enumeration<?> names) | Removes a set of attributes from the list. |
void | removeAttributes(AttributeSet attributes) | Removes a set of attributes from the list. |
void | setResolveParent(AttributeSet parent) | Sets the resolving parent. |
String | toString() | Converts the attribute set to a String. |
Methods declared in class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
Field Detail
EMPTY
public static final AttributeSet EMPTY
An empty attribute set.
Constructor Detail
SimpleAttributeSet
public SimpleAttributeSet()
Creates a new attribute set.
SimpleAttributeSet
public SimpleAttributeSet(AttributeSet source)
Creates a new attribute set based on a supplied set of attributes.
- Parameters:
-
source
- the set of attributes
Method Detail
isEmpty
public boolean isEmpty()
Checks whether the set of attributes is empty.
- Returns:
- true if the set is empty else false
getAttributeCount
public int getAttributeCount()
Gets a count of the number of attributes.
- Specified by:
-
getAttributeCount
in interfaceAttributeSet
- Returns:
- the count
isDefined
public boolean isDefined(Object attrName)
Tells whether a given attribute is defined.
- Specified by:
-
isDefined
in interfaceAttributeSet
- Parameters:
-
attrName
- the attribute name - Returns:
- true if the attribute is defined
isEqual
public boolean isEqual(AttributeSet attr)
Compares two attribute sets.
- Specified by:
-
isEqual
in interfaceAttributeSet
- Parameters:
-
attr
- the second attribute set - Returns:
- true if the sets are equal, false otherwise
copyAttributes
public AttributeSet copyAttributes()
Makes a copy of the attributes.
- Specified by:
-
copyAttributes
in interfaceAttributeSet
- Returns:
- the copy
getAttributeNames
public Enumeration<?> getAttributeNames()
Gets the names of the attributes in the set.
- Specified by:
-
getAttributeNames
in interfaceAttributeSet
- Returns:
- the names as an
Enumeration
getAttribute
public Object getAttribute(Object name)
Gets the value of an attribute.
- Specified by:
-
getAttribute
in interfaceAttributeSet
- Parameters:
-
name
- the attribute name - Returns:
- the value
containsAttribute
public boolean containsAttribute(Object name, Object value)
Checks whether the attribute list contains a specified attribute name/value pair.
- Specified by:
-
containsAttribute
in interfaceAttributeSet
- Parameters:
-
name
- the name -
value
- the value - Returns:
- true if the name/value pair is in the list
containsAttributes
public boolean containsAttributes(AttributeSet attributes)
Checks whether the attribute list contains all the specified name/value pairs.
- Specified by:
-
containsAttributes
in interfaceAttributeSet
- Parameters:
-
attributes
- the attribute list - Returns:
- true if the list contains all the name/value pairs
addAttribute
public void addAttribute(Object name, Object value)
Adds an attribute to the list.
- Specified by:
-
addAttribute
in interfaceMutableAttributeSet
- Parameters:
-
name
- the attribute name -
value
- the attribute value
addAttributes
public void addAttributes(AttributeSet attributes)
Adds a set of attributes to the list.
- Specified by:
-
addAttributes
in interfaceMutableAttributeSet
- Parameters:
-
attributes
- the set of attributes to add
removeAttribute
public void removeAttribute(Object name)
Removes an attribute from the list.
- Specified by:
-
removeAttribute
in interfaceMutableAttributeSet
- Parameters:
-
name
- the attribute name
removeAttributes
public void removeAttributes(Enumeration<?> names)
Removes a set of attributes from the list.
- Specified by:
-
removeAttributes
in interfaceMutableAttributeSet
- Parameters:
-
names
- the set of names to remove
removeAttributes
public void removeAttributes(AttributeSet attributes)
Removes a set of attributes from the list.
- Specified by:
-
removeAttributes
in interfaceMutableAttributeSet
- Parameters:
-
attributes
- the set of attributes to remove
getResolveParent
public AttributeSet getResolveParent()
Gets the resolving parent. This is the set of attributes to resolve through if an attribute isn't defined locally. This is null if there are no other sets of attributes to resolve through.
- Specified by:
-
getResolveParent
in interfaceAttributeSet
- Returns:
- the parent
setResolveParent
public void setResolveParent(AttributeSet parent)
Sets the resolving parent.
- Specified by:
-
setResolveParent
in interfaceMutableAttributeSet
- Parameters:
-
parent
- the parent
clone
public Object clone()
Clones a set of attributes.
hashCode
public int hashCode()
Returns a hashcode for this set of attributes.
- Overrides:
-
hashCode
in classObject
- Returns:
- a hashcode value for this set of attributes.
- See Also:
-
Object.equals(java.lang.Object)
,System.identityHashCode(java.lang.Object)
equals
public boolean equals(Object obj)
Compares this object to the specified object. The result is true
if the object is an equivalent set of attributes.
- Overrides:
-
equals
in classObject
- Parameters:
-
obj
- the object to compare this attribute set with - Returns:
-
true
if the objects are equal;false
otherwise - See Also:
-
Object.hashCode()
,HashMap
toString
public String toString()
Converts the attribute set to a String.