All Superinterfaces:

Serializable

All Known Subinterfaces:

FieldableNode, FieldValuePairQueryNode<T>, RangeQueryNode<T>, ValueQueryNode<T>

All Known Implementing Classes:

AbstractRangeQueryNode, AndQueryNode, AnyQueryNode, BooleanModifierNode, BooleanQueryNode, BoostQueryNode, DeletedQueryNode, FieldQueryNode, FuzzyQueryNode, GroupQueryNode, MatchAllDocsQueryNode, MatchNoDocsQueryNode, ModifierQueryNode, MultiPhraseQueryNode, NoTokenFoundQueryNode, NumericQueryNode, NumericRangeQueryNode, OpaqueQueryNode, OrQueryNode, ParametricQueryNode, ParametricRangeQueryNode, PathQueryNode, PhraseSlopQueryNode, PrefixWildcardQueryNode, ProximityQueryNode, QueryNodeImpl, QuotedFieldQueryNode, RangeQueryNode, SlopQueryNode, StandardBooleanQueryNode, TermRangeQueryNode, TokenizedPhraseQueryNode, WildcardQueryNode
```
public interface QueryNode
extends Serializable
```
A QueryNode is a interface implemented by all nodes on a QueryNode tree.

Method Summary

All Methods Instance Methods Abstract Methods Deprecated Methods
Modifier and Type	Method	Description
`void`	`add(List<QueryNode> children)`
`void`	`add(QueryNode child)`
`QueryNode`	`cloneTree()`	Recursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() method
`boolean`	`containsTag(CharSequence tagName)`	Deprecated. use `containsTag(String)` instead
`boolean`	`containsTag(String tagName)`	verify if a node contains a tag
`List<QueryNode>`	`getChildren()`	get Children nodes
`QueryNode`	`getParent()`
`Object`	`getTag(CharSequence tagName)`	Deprecated. use `getTag(String)` instead
`Object`	`getTag(String tagName)`
`Map<String,Object>`	`getTagMap()`	Returns a map containing all tags attached to this query node.
`Map<CharSequence,Object>`	`getTags()`	Deprecated. use `getTagMap()`
`boolean`	`isLeaf()`	verify if a node is a Leaf node
`void`	`set(List<QueryNode> children)`
`void`	`setTag(CharSequence tagName, Object value)`	Deprecated. use `setTag(String, Object)` instead
`void`	`setTag(String tagName, Object value)`	Associate the specified value with the specified tagName.
`CharSequence`	`toQueryString(EscapeQuerySyntax escapeSyntaxParser)`	convert to a query string understood by the query parser
`String`	`toString()`	for printing
`void`	`unsetTag(CharSequence tagName)`	Deprecated. use `unsetTag(String)` instead
`void`	`unsetTag(String tagName)`	Unset a tag.

- Method Detail
  - toQueryString
```
CharSequence toQueryString(EscapeQuerySyntax escapeSyntaxParser)
```
    convert to a query string understood by the query parser
  - toString
```
String toString()
```
    for printing
    
    Overrides:
    
    toString in class Object
  - getChildren
```
List<QueryNode> getChildren()
```
    get Children nodes
  - isLeaf
```
boolean isLeaf()
```
    verify if a node is a Leaf node
  - containsTag
```
boolean containsTag(String tagName)
```
    verify if a node contains a tag
  - containsTag
```
@Deprecated
boolean containsTag(CharSequence tagName)
```
    Deprecated.
    use containsTag(String) instead
    
    verify if a node contains a tag
  - getTag
```
Object getTag(String tagName)
```
    Parameters:
    
    tagName -
    
    Returns:
    
    of stored on under that tag name
  - getTag
```
@Deprecated
Object getTag(CharSequence tagName)
```
    Deprecated.
    use getTag(String) instead
    
    Parameters:
    
    tagName -
    
    Returns:
    
    of stored on under that tag name
  - getParent
```
QueryNode getParent()
```
  - cloneTree
```
QueryNode cloneTree()
             throws CloneNotSupportedException
```
    Recursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() method
    
    Returns:
    
    the cloned tree
    
    Throws:
    
    CloneNotSupportedException
  - add
```
void add(QueryNode child)
```
  - add
```
void add(List<QueryNode> children)
```
  - set
```
void set(List<QueryNode> children)
```
  - setTag
```
void setTag(String tagName,
            Object value)
```
    Associate the specified value with the specified tagName. If the tagName already exists, the old value is replaced. The tagName and value cannot be null. tagName will be converted to lowercase.
    
    Parameters:
    
    tagName -
    
    value -
  - setTag
```
@Deprecated
void setTag(CharSequence tagName,
            Object value)
```
    Deprecated.
    use setTag(String, Object) instead
    
    Associate the specified value with the specified tagName. If the tagName already exists, the old value is replaced. The tagName and value cannot be null. tagName will be converted to lowercase.
    
    Parameters:
    
    tagName -
    
    value -
  - unsetTag
```
void unsetTag(String tagName)
```
    Unset a tag. tagName will be converted to lowercase.
    
    Parameters:
    
    tagName -
  - unsetTag
```
@Deprecated
void unsetTag(CharSequence tagName)
```
    Deprecated.
    use unsetTag(String) instead
    
    Unset a tag. tagName will be converted to lowercase.
    
    Parameters:
    
    tagName -
  - getTags
```
@Deprecated
Map<CharSequence,Object> getTags()
```
    Deprecated.
    use getTagMap()
    
    Returns a map containing all tags attached to this query node.
    
    Returns:
    
    a map containing all tags attached to this query node
  - getTagMap
```
Map<String,Object> getTagMap()
```
    Returns a map containing all tags attached to this query node.
    
    Returns:
    
    a map containing all tags attached to this query node

Interface QueryNode

Method Summary

Method Detail

toQueryString

toString

getChildren

isLeaf

containsTag

containsTag

getTag

getTag

getParent

cloneTree

add

add

set

setTag

setTag

unsetTag

unsetTag

getTags

getTagMap