Package org.apache.lucene.search

Class Explanation

java.lang.Object

org.apache.lucene.search.Explanation

Direct Known Subclasses:

ComplexExplanation

public class Explanation
extends Object

Expert: Describes the score computation for document and query.

Constructor Summary

Constructors

Constructor	Description
Explanation()
Explanation(float value, String description)

Method Summary

Modifier and Type	Method	Description
void	addDetail(Explanation detail)	Adds a sub-node to this explanation node.
String	getDescription()	A description of this explanation node.
Explanation[]	getDetails()	The sub-nodes of this explanation node.
float	getValue()	The value assigned to this explanation node.
boolean	isMatch()	Indicates whether or not this Explanation models a good match.
void	setDescription(String description)	Sets the description of this explanation node.
void	setValue(float value)	Sets the value assigned to this explanation node.
String	toHtml()	Render an explanation as HTML.
String	toString()	Render an explanation as text.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

Explanation

public Explanation()

Explanation

public Explanation(float value,
 String description)

Method Details

isMatch

public boolean isMatch()

Indicates whether or not this Explanation models a good match.

By default, an Explanation represents a "match" if the value is positive.

See Also:

• getValue()

getValue

public float getValue()

The value assigned to this explanation node.

setValue

public void setValue(float value)

Sets the value assigned to this explanation node.

getDescription

public String getDescription()

A description of this explanation node.

setDescription

public void setDescription(String description)

Sets the description of this explanation node.

getDetails

public Explanation[] getDetails()

The sub-nodes of this explanation node.

addDetail

public void addDetail(Explanation detail)

Adds a sub-node to this explanation node.

toString

public String toString()

Render an explanation as text.

Overrides:

toString in class Object

toHtml

public String toHtml()

Render an explanation as HTML.