Class GroupQueryNode
- java.lang.Object
-
- org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl
-
- org.apache.lucene.queryparser.flexible.core.nodes.GroupQueryNode
-
public class GroupQueryNode extends QueryNodeImpl
AGroupQueryNoderepresents a location where the original user typed real parenthesis on the query string. This class is useful for queries like: a) a AND b OR c b) ( a AND b) OR cParenthesis might be used to define the boolean operation precedence.
-
-
Field Summary
-
Fields inherited from class org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl
PLAINTEXT_FIELD_NAME, toQueryStringIgnoreFields
-
-
Constructor Summary
Constructors Constructor Description GroupQueryNode(QueryNode query)This QueryNode is used to identify parenthesis on the original query string
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description QueryNodecloneTree()Recursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() methodQueryNodegetChild()voidsetChild(QueryNode child)CharSequencetoQueryString(EscapeQuerySyntax escapeSyntaxParser)convert to a query string understood by the query parserStringtoString()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
-
-
-
-
Constructor Detail
-
GroupQueryNode
public GroupQueryNode(QueryNode query)
This QueryNode is used to identify parenthesis on the original query string
-
-
Method Detail
-
getChild
public QueryNode getChild()
-
toString
public String toString()
Description copied from class:QueryNodeImplEvery implementation of this class should return pseudo xml like this:For FieldQueryNode: <field start='1' end='2' field='subject' text='foo'/>
- Specified by:
toStringin interfaceQueryNode- Overrides:
toStringin classQueryNodeImpl- See Also:
QueryNode.toString()
-
toQueryString
public CharSequence toQueryString(EscapeQuerySyntax escapeSyntaxParser)
Description copied from interface:QueryNodeconvert to a query string understood by the query parser
-
cloneTree
public QueryNode cloneTree() throws CloneNotSupportedException
Description copied from interface:QueryNodeRecursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() method- Specified by:
cloneTreein interfaceQueryNode- Overrides:
cloneTreein classQueryNodeImpl- Returns:
- the cloned tree
- Throws:
CloneNotSupportedException
-
setChild
public void setChild(QueryNode child)
-
-