public final class ThaiWordFilter extends TokenFilter
BreakIteratorto break each Token that is Thai into separate Token(s) for each Thai word.
Please note: Since matchVersion 3.1 on, this filter no longer lowercases non-thai text.
ThaiAnalyzer will insert a
LowerCaseFilter before this filter
so the behaviour of the Analyzer does not change. With version 3.1, the filter handles
position increments correctly.
WARNING: this filter may not be supported by all JREs. It is known to work with Sun/Oracle and Harmony JREs. If your application needs to be fully portable, consider using ICUTokenizer instead, which uses an ICU Thai BreakIterator that will always be available.
|Modifier and Type||Field and Description|
True if the JRE supports a working dictionary-based breakiterator for Thai.
|Constructor and Description|
Use the ctor with
Creates a new ThaiWordFilter with the specified match version.
|Modifier and Type||Method and Description|
Reset the filter as well as the input TokenStream.
addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, copyTo, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, reflectAsString, reflectWith, restoreState, toString
public static final boolean DBBI_AVAILABLE
@Deprecated public ThaiWordFilter(TokenStream input)
public boolean incrementToken() throws IOException
IndexWriter) use this method to advance the stream to the next token. Implementing classes must implement this method and update the appropriate
AttributeImpls with the attributes of the next token.
The producer must make no assumptions about the attributes after the method
has been returned: the caller may arbitrarily change it. If the producer
needs to preserve the state for subsequent calls, it can use
AttributeSource.captureState() to create a copy of the current attribute state.
This method is called for every token of a document, so an efficient
implementation is crucial for good performance. To avoid calls to
references to all
AttributeImpls that this stream uses should be
retrieved during instantiation.
To ensure that filters and consumers know which attributes are available,
the attributes must be added during instantiation. Filters and consumers
are not required to check for availability of attributes in