PerThreadPKLookup (Lucene 9.0.0 test-framework API)

java.lang.Object
- org.apache.lucene.index.PerThreadPKLookup

```
public class PerThreadPKLookup
extends Object
```
Utility class to do efficient primary-key (only 1 doc contains the given term) lookups by segment, re-using the enums. This class is not thread safe, so it is the caller's job to create and use one instance of this per thread. Do not use this if a term may appear in more than one document! It will only return the first one it finds.

Field Summary

Fields
Modifier and Type	Field	Description
`protected int[]`	`docBases`
`protected boolean`	`hasDeletions`
`protected Bits[]`	`liveDocs`
`protected int`	`numSegs`
`protected PostingsEnum[]`	`postingsEnums`
`protected TermsEnum[]`	`termsEnums`

Constructor Summary

Constructors
Constructor Description

PerThreadPKLookup(IndexReader r, String idFieldName)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

int lookup(BytesRef id)
Returns docID if found, else -1.
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

termsEnums
```
protected final TermsEnum[] termsEnums
```

postingsEnums

protected final PostingsEnum[] postingsEnums

liveDocs
```
protected final Bits[] liveDocs
```

docBases
```
protected final int[] docBases
```

numSegs
```
protected final int numSegs
```

hasDeletions
```
protected final boolean hasDeletions
```

Constructor Detail

PerThreadPKLookup

public PerThreadPKLookup(IndexReader r,
                         String idFieldName)
                  throws IOException

Throws:: IOException

Method Detail

lookup

public int lookup(BytesRef id)
           throws IOException

Returns docID if found, else -1.

Throws:: IOException