Package org.apache.lucene.analysis.util
Class RollingCharBuffer
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- org.apache.lucene.analysis.util.RollingCharBuffer
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public final class RollingCharBuffer extends Object
Acts like a forever growing char[] as you read characters into it from the provided reader, but internally it uses a circular buffer to only hold the characters that haven't been freed yet. This is like a PushbackReader, except you don't have to specify up-front the max size of the buffer, but you do have to periodically callfreeBefore(int).
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Constructor Summary
Constructors Constructor Description RollingCharBuffer()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidfreeBefore(int pos)Call this to notify us that no chars before this absolute position are needed anymore.intget(int pos)char[]get(int posStart, int length)voidreset(Reader reader)Clear array and switch to new reader.
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Method Detail
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reset
public void reset(Reader reader)
Clear array and switch to new reader.
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get
public int get(int pos) throws IOException- Throws:
IOException
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get
public char[] get(int posStart, int length)
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freeBefore
public void freeBefore(int pos)
Call this to notify us that no chars before this absolute position are needed anymore.
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