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

Class RegexpQueryNode

java.lang.Object

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

org.apache.lucene.queryparser.flexible.standard.nodes.RegexpQueryNode

All Implemented Interfaces:

Cloneable, FieldableNode, QueryNode, TextableQueryNode

public class RegexpQueryNode
extends QueryNodeImpl
implements TextableQueryNode, FieldableNode

A RegexpQueryNode represents RegexpQuery query Examples: /[a-z]|[0-9]/

Field Summary

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

PLAINTEXT_FIELD_NAME, toQueryStringIgnoreFields

Constructor Summary

Constructors

Constructor	Description
RegexpQueryNode(CharSequence field, CharSequence text)
RegexpQueryNode(CharSequence field, CharSequence text, int begin, int end)

Method Summary

Modifier and Type	Method	Description
RegexpQueryNode	cloneTree()	Recursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() method
CharSequence	getField()	Returns the field associated to the node and every node under it.
String	getFieldAsString()
CharSequence	getText()
void	setField(CharSequence field)	Associates the node to a field.
void	setText(CharSequence text)
BytesRef	textToBytesRef()
CharSequence	toQueryString(EscapeQuerySyntax escapeSyntaxParser)	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.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 Details

RegexpQueryNode

public RegexpQueryNode(CharSequence field,
 CharSequence text,
 int begin,
 int end)

Parameters:

field - - field name

text - - value that contains a regular expression

begin - - position in the query string

end - - position in the query string

RegexpQueryNode

public RegexpQueryNode(CharSequence field,
 CharSequence text)

Parameters:

field - - field name

text - - value that contains a regular expression

Method Details

textToBytesRef

public BytesRef textToBytesRef()

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 QueryNodeImpl

See Also:

• QueryNode.toString()

cloneTree

public RegexpQueryNode 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 QueryNodeImpl

Returns:

the cloned tree

Throws:

CloneNotSupportedException

getText

public CharSequence getText()

Specified by:

getText in interface TextableQueryNode

setText

public void setText(CharSequence text)

Specified by:

setText in interface TextableQueryNode

getField

public CharSequence getField()

Description copied from interface: FieldableNode

Returns the field associated to the node and every node under it.

Specified by:

getField in interface FieldableNode

Returns:

the field name

getFieldAsString

public String getFieldAsString()

setField

public void setField(CharSequence field)

Description copied from interface: FieldableNode

Associates the node to a field.

Specified by:

setField in interface FieldableNode

Parameters:

field - the field name

toQueryString

public CharSequence toQueryString(EscapeQuerySyntax escapeSyntaxParser)

Description copied from interface: QueryNode

convert to a query string understood by the query parser

Specified by:

toQueryString in interface QueryNode