Package org.apache.lucene.search.vectorhighlight

Class FieldTermStack

java.lang.Object

org.apache.lucene.search.vectorhighlight.FieldTermStack

public class FieldTermStack
extends Object

FieldTermStack is a stack that keeps query terms in the specified field of the document to be highlighted.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	FieldTermStack.TermInfo	Single term with its position/offsets in the document and IDF weight.

Constructor Summary

Constructors

Constructor	Description
FieldTermStack(IndexReader reader, int docId, String fieldName, FieldQuery fieldQuery)	a constructor.

Method Summary

Modifier and Type	Method	Description
String	getFieldName()
boolean	isEmpty()	to know whether the stack is empty
FieldTermStack.TermInfo	pop()
void	push(FieldTermStack.TermInfo termInfo)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

FieldTermStack

public FieldTermStack(IndexReader reader,
 int docId,
 String fieldName,
 FieldQuery fieldQuery)
               throws IOException

a constructor.

Parameters:

reader - IndexReader of the index

docId - document id to be highlighted

fieldName - field of the document to be highlighted

fieldQuery - FieldQuery object

Throws:

IOException - If there is a low-level I/O error

Method Details

getFieldName

public String getFieldName()

Returns:

field name

pop

public FieldTermStack.TermInfo pop()

Returns:

the top TermInfo object of the stack

push

public void push(FieldTermStack.TermInfo termInfo)

Parameters:

termInfo - the TermInfo object to be put on the top of the stack

isEmpty

public boolean isEmpty()

to know whether the stack is empty

Returns:

true if the stack is empty, false if not