java.text
Class DictionaryBasedBreakIterator.Builder

java.lang.Object
  java.text.RuleBasedBreakIterator.Builder
      java.text.DictionaryBasedBreakIterator.Builder

Enclosing class:

DictionaryBasedBreakIterator

protected class DictionaryBasedBreakIterator.Builder

extends RuleBasedBreakIterator.Builder

The Builder class for DictionaryBasedBreakIterator inherits almost all of its functionality from the Builder class for RuleBasedBreakIterator, but extends it with extra logic to handle the "" token

Field Summary

private CharSet	dictionaryChars A CharSet that contains all the characters represented in the dictionary
private String	dictionaryExpression

Fields inherited from class java.text.RuleBasedBreakIterator.Builder

ALL_FLAGS, categories, clearLoopingStates, decisionPointList, decisionPointStack, DONT_LOOP_FLAG, END_STATE_FLAG, expressions, ignoreChars, LOOKAHEAD_STATE_FLAG, loopingStates, mergeList, statesToBackfill, tempStateTable

Constructor Summary

DictionaryBasedBreakIterator.Builder()
No special initialization

Method Summary

protected void	buildCharCategories(Vector tempRuleList) The other half of the logic to handle the dictionary characters happens here.
protected void	handleSpecialSubstitution(String replace, String replaceWith, int startPos, String description) We override handleSpecialSubstitution() to add logic to handle the tag.
protected void	mungeExpressionList(Hashtable expressions)

Methods inherited from class java.text.RuleBasedBreakIterator.Builder

buildBreakIterator, error, processSubstitution

Methods inherited from class java.lang.Object

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

Field Detail

dictionaryChars

private CharSet dictionaryChars

A CharSet that contains all the characters represented in the dictionary

dictionaryExpression

private String dictionaryExpression

Constructor Detail

DictionaryBasedBreakIterator.Builder

public DictionaryBasedBreakIterator.Builder()

No special initialization

Method Detail

handleSpecialSubstitution

protected void handleSpecialSubstitution(String replace,
                                         String replaceWith,
                                         int startPos,
                                         String description)

We override handleSpecialSubstitution() to add logic to handle the tag. If we see a substitution named "", parse the substitution expression and store the result in dictionaryChars.

Overrides:

handleSpecialSubstitution in class RuleBasedBreakIterator.Builder

buildCharCategories

protected void buildCharCategories(Vector tempRuleList)

The other half of the logic to handle the dictionary characters happens here. After the inherited builder has derived the real character categories, we set up the categoryFlags array in the iterator. This array contains "true" for every character category that includes a dictionary character.

Overrides:

buildCharCategories in class RuleBasedBreakIterator.Builder

mungeExpressionList

protected void mungeExpressionList(Hashtable expressions)

Overrides:

mungeExpressionList in class RuleBasedBreakIterator.Builder