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java.lang.Object org.apache.lucene.util.AttributeSource org.apache.lucene.analysis.TokenStream org.apache.lucene.analysis.TokenFilter org.apache.lucene.analysis.position.PositionFilter
public final class PositionFilter
Set the positionIncrement of all tokens to the "positionIncrement", except the first return token which retains its original positionIncrement value. The default positionIncrement value is zero.
Nested Class Summary |
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Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource |
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org.apache.lucene.util.AttributeSource.AttributeFactory, org.apache.lucene.util.AttributeSource.State |
Field Summary |
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Fields inherited from class org.apache.lucene.analysis.TokenFilter |
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input |
Constructor Summary | |
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PositionFilter(org.apache.lucene.analysis.TokenStream input)
Constructs a PositionFilter that assigns a position increment of zero to all but the first token from the given input stream. |
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PositionFilter(org.apache.lucene.analysis.TokenStream input,
int positionIncrement)
Constructs a PositionFilter that assigns the given position increment to all but the first token from the given input stream. |
Method Summary | |
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boolean |
incrementToken()
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void |
reset()
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Methods inherited from class org.apache.lucene.analysis.TokenFilter |
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close, end |
Methods inherited from class org.apache.lucene.util.AttributeSource |
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addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, restoreState, toString |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public PositionFilter(org.apache.lucene.analysis.TokenStream input)
input
- the input streampublic PositionFilter(org.apache.lucene.analysis.TokenStream input, int positionIncrement)
input
- the input streampositionIncrement
- position increment to assign to all but the first
token from the input streamMethod Detail |
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public final boolean incrementToken() throws IOException
incrementToken
in class org.apache.lucene.analysis.TokenStream
IOException
public void reset() throws IOException
reset
in class org.apache.lucene.analysis.TokenFilter
IOException
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