Class PathQueryNode
java.lang.Object
org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl
org.apache.lucene.queryparser.flexible.core.nodes.PathQueryNode
A
PathQueryNode is used to store queries like /company/USA/California
/product/shoes/brown. QueryText are objects that contain the text, begin position and end
position in the query.
Example how the text parser creates these objects:
List values = ArrayList();
values.add(new PathQueryNode.QueryText("company", 1, 7));
values.add(new PathQueryNode.QueryText("USA", 9, 12));
values.add(new PathQueryNode.QueryText("California", 14, 23));
QueryNode q = new PathQueryNode(values);
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Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionstatic classTerm text with a beginning and end position -
Field Summary
Fields inherited from class org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl
PLAINTEXT_FIELD_NAME, toQueryStringIgnoreFields -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionRecursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() methodReturns the CharSequence value of a specific QueryText elementgetPathElement(int index) Returns the a specific QueryText elementReturns the a List with all QueryText elementsgetPathElements(int startIndex) Returns a List QueryText element from position startIndexvoidsetPathElements(List<PathQueryNode.QueryText> elements) Returns the a List with all QueryText elementstoQueryString(EscapeQuerySyntax escaper) convert to a query string understood by the query parsertoString()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
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Constructor Details
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PathQueryNode
- Parameters:
pathElements- - List of QueryText objects
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Method Details
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getPathElements
Returns the a List with all QueryText elements- Returns:
- QueryText List size
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setPathElements
Returns the a List with all QueryText elements -
getPathElement
Returns the a specific QueryText element- Returns:
- QueryText List size
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getFirstPathElement
Returns the CharSequence value of a specific QueryText element- Returns:
- the CharSequence for a specific QueryText element
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getPathElements
Returns a List QueryText element from position startIndex- Returns:
- a List QueryText element from position startIndex
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toQueryString
Description copied from interface:QueryNodeconvert to a query string understood by the query parser -
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:
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cloneTree
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
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