程序包 ohos.global.icu.text

类 BidiClassifier

java.lang.Object

ohos.global.icu.text.BidiClassifier

public class BidiClassifier
extends Object

Overrides default Bidi class values with custom ones.

The override mechanism requires to define a subclass of BidiClassifier which overrides the classifier method to assign customized Bidi classes.

This may be useful for assigning Bidi classes to PUA characters, or for special application needs. For instance, an application may want to handle all spaces like L or R characters (according to the base direction) when creating the visual ordering of logical lines which are part of a report organized in columns: there should not be interaction between adjacent cells.

To start using this customized classifier with a Bidi object, it must be specified by calling the Bidi.setCustomClassifier method; after that, the method classify of the custom BidiClassifier will be called by the UBA implementation any time the class of a character is to be determined.

另请参阅:

Bidi.setCustomClassifier(ohos.global.icu.text.BidiClassifier)

构造器概要

构造器

构造器	说明
BidiClassifier(Object context)

方法概要

限定符和类型	方法	说明
int	classify(int c)	Gets customized Bidi class for the code point c.
Object	getContext()	Returns the current classifier context.
void	setContext(Object context)	Sets classifier context, which can be used either by a caller or callee for various purposes.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

BidiClassifier

public BidiClassifier(Object context)

参数:

context - Context for this classifier instance. May be null.

方法详细资料

setContext

public void setContext(Object context)

Sets classifier context, which can be used either by a caller or callee for various purposes.

参数:

context - Context for this classifier instance. May be null.

getContext

public Object getContext()

Returns the current classifier context.

classify

public int classify(int c)

Gets customized Bidi class for the code point c.

Default implementation, to be overridden.

参数:

c - Code point to be classified.

返回:

An integer representing directional property / Bidi class for the given code point c, or UCharacter.getIntPropertyMaxValue(UProperty.BIDI_CLASS)+1 to signify that there is no need to override the standard Bidi class for the given code point.