Class BaseFragListBuilder
- java.lang.Object
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- org.apache.lucene.search.vectorhighlight.BaseFragListBuilder
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- All Implemented Interfaces:
FragListBuilder
- Direct Known Subclasses:
SimpleFragListBuilder
,WeightedFragListBuilder
public abstract class BaseFragListBuilder extends Object implements FragListBuilder
A abstract implementation ofFragListBuilder
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Field Summary
Fields Modifier and Type Field Description static int
MARGIN_DEFAULT
static int
MIN_FRAG_CHAR_SIZE_FACTOR
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Constructor Summary
Constructors Constructor Description BaseFragListBuilder()
BaseFragListBuilder(int margin)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected boolean
acceptPhrase(FieldPhraseList.WeightedPhraseInfo info, int matchLength, int fragCharSize)
A predicate to decide if the givenFieldPhraseList.WeightedPhraseInfo
should be accepted as a highlighted phrase or if it should be discarded.protected FieldFragList
createFieldFragList(FieldPhraseList fieldPhraseList, FieldFragList fieldFragList, int fragCharSize)
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.lucene.search.vectorhighlight.FragListBuilder
createFieldFragList
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Field Detail
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MARGIN_DEFAULT
public static final int MARGIN_DEFAULT
- See Also:
- Constant Field Values
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MIN_FRAG_CHAR_SIZE_FACTOR
public static final int MIN_FRAG_CHAR_SIZE_FACTOR
- See Also:
- Constant Field Values
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Method Detail
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createFieldFragList
protected FieldFragList createFieldFragList(FieldPhraseList fieldPhraseList, FieldFragList fieldFragList, int fragCharSize)
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acceptPhrase
protected boolean acceptPhrase(FieldPhraseList.WeightedPhraseInfo info, int matchLength, int fragCharSize)
A predicate to decide if the givenFieldPhraseList.WeightedPhraseInfo
should be accepted as a highlighted phrase or if it should be discarded.The default implementation discards phrases that are composed of more than one term and where the matchLength exceeds the fragment character size.
- Parameters:
info
- the phrase info to acceptmatchLength
- the match length of the current phrasefragCharSize
- the configured fragment character size- Returns:
true
if this phrase info should be accepted as a highligh phrase
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