org.apache.lucene.queryparser.flexible.standard.nodes
Class WildcardQueryNode
java.lang.Object
org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl
org.apache.lucene.queryparser.flexible.core.nodes.FieldQueryNode
org.apache.lucene.queryparser.flexible.standard.nodes.WildcardQueryNode
- All Implemented Interfaces:
- Cloneable, FieldableNode, FieldValuePairQueryNode<CharSequence>, QueryNode, TextableQueryNode, ValueQueryNode<CharSequence>
- Direct Known Subclasses:
- PrefixWildcardQueryNode
public class WildcardQueryNode
- extends FieldQueryNode
A WildcardQueryNode
represents wildcard query This does not apply to
phrases. Examples: a*b*c Fl?w? m?ke*g
Method Summary |
WildcardQueryNode |
cloneTree()
Recursive clone the QueryNode tree The tags are not copied to the new tree
when you call the cloneTree() method |
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:
For FieldQueryNode: <field start='1' end='2' field='subject' text='foo'/> |
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, set, setLeaf, setTag, unsetTag |
Methods inherited from interface org.apache.lucene.queryparser.flexible.core.nodes.QueryNode |
add, add, containsTag, getChildren, getParent, getTag, getTagMap, isLeaf, set, setTag, unsetTag |
WildcardQueryNode
public WildcardQueryNode(CharSequence field,
CharSequence text,
int begin,
int end)
- Parameters:
field
- - field nametext
- - value that contains one or more wild card characters (? or *)begin
- - position in the query stringend
- - position in the query string
WildcardQueryNode
public WildcardQueryNode(FieldQueryNode fqn)
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()
cloneTree
public WildcardQueryNode 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
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