Interface AttributedCharacterIterator
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- All Superinterfaces:
- CharacterIterator, Cloneable
public interface AttributedCharacterIterator extends CharacterIterator
AnAttributedCharacterIteratorallows iteration through both text and related attribute information.An attribute is a key/value pair, identified by the key. No two attributes on a given character can have the same key.
The values for an attribute are immutable, or must not be mutated by clients or storage. They are always passed by reference, and not cloned.
A run with respect to an attribute is a maximum text range for which:
- the attribute is undefined or
nullfor the entire range, or - the attribute value is defined and has the same non-
nullvalue for the entire range.
A run with respect to a set of attributes is a maximum text range for which this condition is met for each member attribute.
When getting a run with no explicit attributes specified (i.e., calling
getRunStart()andgetRunLimit()), any contiguous text segments having the same attributes (the same set of attribute/value pairs) are treated as separate runs if the attributes have been given to those text segments separately.The returned indexes are limited to the range of the iterator.
The returned attribute information is limited to runs that contain the current character.
Attribute keys are instances of
AttributedCharacterIterator.Attributeand its subclasses, such asTextAttribute.- Since:
- 1.2
- See Also:
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AttributedCharacterIterator.Attribute,TextAttribute,AttributedString,Annotation
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Nested Class Summary
Nested Classes Modifier and Type Interface and Description static classAttributedCharacterIterator.AttributeDefines attribute keys that are used to identify text attributes.
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Field Summary
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Fields inherited from interface java.text.CharacterIterator
DONE
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method and Description Set<AttributedCharacterIterator.Attribute>getAllAttributeKeys()Returns the keys of all attributes defined on the iterator's text range.ObjectgetAttribute(AttributedCharacterIterator.Attribute attribute)Returns the value of the namedattributefor the current character.Map<AttributedCharacterIterator.Attribute,Object>getAttributes()Returns a map with the attributes defined on the current character.intgetRunLimit()Returns the index of the first character following the run with respect to all attributes containing the current character.intgetRunLimit(AttributedCharacterIterator.Attribute attribute)Returns the index of the first character following the run with respect to the givenattributecontaining the current character.intgetRunLimit(Set<? extends AttributedCharacterIterator.Attribute> attributes)Returns the index of the first character following the run with respect to the givenattributescontaining the current character.intgetRunStart()Returns the index of the first character of the run with respect to all attributes containing the current character.intgetRunStart(AttributedCharacterIterator.Attribute attribute)Returns the index of the first character of the run with respect to the givenattributecontaining the current character.intgetRunStart(Set<? extends AttributedCharacterIterator.Attribute> attributes)Returns the index of the first character of the run with respect to the givenattributescontaining the current character.-
Methods inherited from interface java.text.CharacterIterator
clone, current, first, getBeginIndex, getEndIndex, getIndex, last, next, previous, setIndex
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Method Detail
getRunStart
int getRunStart()
Returns the index of the first character of the run with respect to all attributes containing the current character.Any contiguous text segments having the same attributes (the same set of attribute/value pairs) are treated as separate runs if the attributes have been given to those text segments separately.
- Returns:
- the index of the first character of the run
getRunStart
int getRunStart(AttributedCharacterIterator.Attribute attribute)
Returns the index of the first character of the run with respect to the givenattributecontaining the current character.- Parameters:
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attribute- the desired attribute. - Returns:
- the index of the first character of the run
getRunStart
int getRunStart(Set<? extends AttributedCharacterIterator.Attribute> attributes)
Returns the index of the first character of the run with respect to the givenattributescontaining the current character.- Parameters:
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attributes- a set of the desired attributes. - Returns:
- the index of the first character of the run
getRunLimit
int getRunLimit()
Returns the index of the first character following the run with respect to all attributes containing the current character.Any contiguous text segments having the same attributes (the same set of attribute/value pairs) are treated as separate runs if the attributes have been given to those text segments separately.
- Returns:
- the index of the first character following the run
getRunLimit
int getRunLimit(AttributedCharacterIterator.Attribute attribute)
Returns the index of the first character following the run with respect to the givenattributecontaining the current character.- Parameters:
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attribute- the desired attribute - Returns:
- the index of the first character following the run
getRunLimit
int getRunLimit(Set<? extends AttributedCharacterIterator.Attribute> attributes)
Returns the index of the first character following the run with respect to the givenattributescontaining the current character.- Parameters:
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attributes- a set of the desired attributes - Returns:
- the index of the first character following the run
getAttributes
Map<AttributedCharacterIterator.Attribute,Object> getAttributes()
Returns a map with the attributes defined on the current character.- Returns:
- a map with the attributes defined on the current character
getAttribute
Object getAttribute(AttributedCharacterIterator.Attribute attribute)
Returns the value of the namedattributefor the current character. Returnsnullif theattributeis not defined.- Parameters:
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attribute- the desired attribute - Returns:
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the value of the named
attributeornull
getAllAttributeKeys
Set<AttributedCharacterIterator.Attribute> getAllAttributeKeys()
Returns the keys of all attributes defined on the iterator's text range. The set is empty if no attributes are defined.- Returns:
- the keys of all attributes
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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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