public final class CachingTokenFilter extends TokenFilter
CachingTokenFilter implements the optional method
TokenStream.reset(), which repositions the
stream to the first Token.
|Modifier and Type||Method and Description|
Performs end-of-stream operations, if any, and calls then
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 CachingTokenFilter(TokenStream input)
public final 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
public final void end() throws IOException
end()on the input TokenStream. NOTE: Be sure to call
super.end()first when overriding this method.