- java.lang.Object
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- javax.swing.text.SimpleAttributeSet
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- 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.beanspackage. Please seeXMLEncoder.- See Also:
- Serialized Form
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Nested Class Summary
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Nested classes/interfaces declared in interface javax.swing.text.AttributeSet
AttributeSet.CharacterAttribute, AttributeSet.ColorAttribute, AttributeSet.FontAttribute, AttributeSet.ParagraphAttribute
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Field Summary
Fields Modifier and Type Field Description static AttributeSetEMPTYAn empty attribute set.-
Fields declared in interface javax.swing.text.AttributeSet
NameAttribute, ResolveAttribute
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Constructor Summary
Constructors Constructor Description SimpleAttributeSet()Creates a new attribute set.SimpleAttributeSet(AttributeSet source)Creates a new attribute set based on a supplied set of attributes.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidaddAttribute(Object name, Object value)Adds an attribute to the list.voidaddAttributes(AttributeSet attributes)Adds a set of attributes to the list.Objectclone()Clones a set of attributes.booleancontainsAttribute(Object name, Object value)Checks whether the attribute list contains a specified attribute name/value pair.booleancontainsAttributes(AttributeSet attributes)Checks whether the attribute list contains all the specified name/value pairs.AttributeSetcopyAttributes()Makes a copy of the attributes.booleanequals(Object obj)Compares this object to the specified object.ObjectgetAttribute(Object name)Gets the value of an attribute.intgetAttributeCount()Gets a count of the number of attributes.Enumeration<?>getAttributeNames()Gets the names of the attributes in the set.AttributeSetgetResolveParent()Gets the resolving parent.inthashCode()Returns a hashcode for this set of attributes.booleanisDefined(Object attrName)Tells whether a given attribute is defined.booleanisEmpty()Checks whether the set of attributes is empty.booleanisEqual(AttributeSet attr)Compares two attribute sets.voidremoveAttribute(Object name)Removes an attribute from the list.voidremoveAttributes(Enumeration<?> names)Removes a set of attributes from the list.voidremoveAttributes(AttributeSet attributes)Removes a set of attributes from the list.voidsetResolveParent(AttributeSet parent)Sets the resolving parent.StringtoString()Converts the attribute set to a String.
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Field Detail
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EMPTY
public static final AttributeSet EMPTY
An empty attribute set.
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Constructor Detail
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SimpleAttributeSet
public SimpleAttributeSet()
Creates a new attribute set.
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SimpleAttributeSet
public SimpleAttributeSet(AttributeSet source)
Creates a new attribute set based on a supplied set of attributes.- Parameters:
source- the set of attributes
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Method Detail
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isEmpty
public boolean isEmpty()
Checks whether the set of attributes is empty.- Returns:
- true if the set is empty else false
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getAttributeCount
public int getAttributeCount()
Gets a count of the number of attributes.- Specified by:
getAttributeCountin interfaceAttributeSet- Returns:
- the count
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isDefined
public boolean isDefined(Object attrName)
Tells whether a given attribute is defined.- Specified by:
isDefinedin interfaceAttributeSet- Parameters:
attrName- the attribute name- Returns:
- true if the attribute is defined
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isEqual
public boolean isEqual(AttributeSet attr)
Compares two attribute sets.- Specified by:
isEqualin interfaceAttributeSet- Parameters:
attr- the second attribute set- Returns:
- true if the sets are equal, false otherwise
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copyAttributes
public AttributeSet copyAttributes()
Makes a copy of the attributes.- Specified by:
copyAttributesin interfaceAttributeSet- Returns:
- the copy
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getAttributeNames
public Enumeration<?> getAttributeNames()
Gets the names of the attributes in the set.- Specified by:
getAttributeNamesin interfaceAttributeSet- Returns:
- the names as an
Enumeration
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getAttribute
public Object getAttribute(Object name)
Gets the value of an attribute.- Specified by:
getAttributein interfaceAttributeSet- Parameters:
name- the attribute name- Returns:
- the value
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containsAttribute
public boolean containsAttribute(Object name, Object value)
Checks whether the attribute list contains a specified attribute name/value pair.- Specified by:
containsAttributein interfaceAttributeSet- Parameters:
name- the namevalue- the value- Returns:
- true if the name/value pair is in the list
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containsAttributes
public boolean containsAttributes(AttributeSet attributes)
Checks whether the attribute list contains all the specified name/value pairs.- Specified by:
containsAttributesin interfaceAttributeSet- Parameters:
attributes- the attribute list- Returns:
- true if the list contains all the name/value pairs
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addAttribute
public void addAttribute(Object name, Object value)
Adds an attribute to the list.- Specified by:
addAttributein interfaceMutableAttributeSet- Parameters:
name- the attribute namevalue- the attribute value
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addAttributes
public void addAttributes(AttributeSet attributes)
Adds a set of attributes to the list.- Specified by:
addAttributesin interfaceMutableAttributeSet- Parameters:
attributes- the set of attributes to add
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removeAttribute
public void removeAttribute(Object name)
Removes an attribute from the list.- Specified by:
removeAttributein interfaceMutableAttributeSet- Parameters:
name- the attribute name
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removeAttributes
public void removeAttributes(Enumeration<?> names)
Removes a set of attributes from the list.- Specified by:
removeAttributesin interfaceMutableAttributeSet- Parameters:
names- the set of names to remove
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removeAttributes
public void removeAttributes(AttributeSet attributes)
Removes a set of attributes from the list.- Specified by:
removeAttributesin interfaceMutableAttributeSet- Parameters:
attributes- the set of attributes to remove
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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:
getResolveParentin interfaceAttributeSet- Returns:
- the parent
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setResolveParent
public void setResolveParent(AttributeSet parent)
Sets the resolving parent.- Specified by:
setResolveParentin interfaceMutableAttributeSet- Parameters:
parent- the parent
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clone
public Object clone()
Clones a set of attributes.
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hashCode
public int hashCode()
Returns a hashcode for this set of attributes.- Overrides:
hashCodein classObject- Returns:
- a hashcode value for this set of attributes.
- See Also:
Object.equals(java.lang.Object)
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equals
public boolean equals(Object obj)
Compares this object to the specified object. The result istrueif the object is an equivalent set of attributes.- Overrides:
equalsin classObject- Parameters:
obj- the object to compare this attribute set with- Returns:
trueif the objects are equal;falseotherwise- See Also:
Object.hashCode()
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