Package org.apache.lucene.queryparser.flexible.core.nodes

Class FuzzyQueryNode

java.lang.Object

org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl

org.apache.lucene.queryparser.flexible.core.nodes.FieldQueryNode

org.apache.lucene.queryparser.flexible.core.nodes.FuzzyQueryNode

All Implemented Interfaces:

Cloneable, FieldableNode, FieldValuePairQueryNode<CharSequence>, QueryNode, TextableQueryNode, ValueQueryNode<CharSequence>

public class FuzzyQueryNode
extends FieldQueryNode

A FuzzyQueryNode represents a element that contains field/text/similarity tuple

Field Summary

Fields inherited from class org.apache.lucene.queryparser.flexible.core.nodes.FieldQueryNode

begin, end, field, positionIncrement, text

Fields inherited from class org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl

PLAINTEXT_FIELD_NAME, toQueryStringIgnoreFields

Constructor Summary

Constructors

Constructor	Description
FuzzyQueryNode(CharSequence field, CharSequence term, float minSimilarity, int begin, int end)

Method Summary

Modifier and Type	Method	Description
FuzzyQueryNode	cloneTree()	Recursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() method
int	getPrefixLength()
float	getSimilarity()
void	setPrefixLength(int prefixLength)
void	setSimilarity(float similarity)
CharSequence	toQueryString(EscapeQuerySyntax escaper)	convert to a query string understood by the query parser
String	toString()	Every implementation of this class should return pseudo xml like this:

Methods inherited from class org.apache.lucene.queryparser.flexible.core.nodes.FieldQueryNode

getBegin, getEnd, getField, getFieldAsString, getPositionIncrement, getTermEscaped, getTermEscapeQuoted, getText, getTextAsString, getValue, setBegin, setEnd, setField, setPositionIncrement, setText, setValue

Methods inherited from class org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl

add, add, allocate, clone, containsTag, getChildren, getParent, getTag, getTagMap, isDefaultField, isLeaf, isRoot, removeChildren, removeFromParent, set, setLeaf, setTag, unsetTag

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.lucene.queryparser.flexible.core.nodes.QueryNode

add, add, containsTag, getChildren, getParent, getTag, getTagMap, isLeaf, removeChildren, removeFromParent, set, setTag, unsetTag

Constructor Detail

FuzzyQueryNode

public FuzzyQueryNode(CharSequence field,
                      CharSequence term,
                      float minSimilarity,
                      int begin,
                      int end)

Parameters:

field - - Field name

term - - Value

minSimilarity - - similarity value

begin - - position in the query string

end - - position in the query string

Method Detail

setPrefixLength

public void setPrefixLength(int prefixLength)

getPrefixLength

public int getPrefixLength()

toQueryString

public CharSequence toQueryString(EscapeQuerySyntax escaper)

Description copied from interface: QueryNode

convert to a query string understood by the query parser

Specified by:

toQueryString in interface QueryNode

Overrides:

toQueryString in class FieldQueryNode

toString

public String toString()

Description copied from class: QueryNodeImpl

Every implementation of this class should return pseudo xml like this:

For FieldQueryNode: <field start='1' end='2' field='subject' text='foo'/>

Specified by:

toString in interface QueryNode

Overrides:

toString in class FieldQueryNode

See Also:

QueryNode.toString()

setSimilarity

public void setSimilarity(float similarity)

cloneTree

public FuzzyQueryNode cloneTree()
                         throws CloneNotSupportedException

Description copied from interface: QueryNode

Recursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() method

Specified by:

cloneTree in interface QueryNode

Overrides:

cloneTree in class FieldQueryNode

Returns:

the cloned tree

Throws:

CloneNotSupportedException

getSimilarity

public float getSimilarity()

Returns:

the similarity