Class QueryNodeImpl
- java.lang.Object
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- org.apache.lucene.queryparser.flexible.core.nodes.QueryNodeImpl
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- All Implemented Interfaces:
java.lang.Cloneable
,QueryNode
- Direct Known Subclasses:
AbstractRangeQueryNode
,BooleanQueryNode
,BoostQueryNode
,DeletedQueryNode
,FieldQueryNode
,GroupQueryNode
,MatchAllDocsQueryNode
,ModifierQueryNode
,MultiPhraseQueryNode
,OpaqueQueryNode
,PathQueryNode
,PhraseSlopQueryNode
,PointQueryNode
,RegexpQueryNode
,SlopQueryNode
,TokenizedPhraseQueryNode
public abstract class QueryNodeImpl extends java.lang.Object implements QueryNode, java.lang.Cloneable
AQueryNodeImpl
is the default implementation of the interfaceQueryNode
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Field Summary
Fields Modifier and Type Field Description private java.util.List<QueryNode>
clauses
private boolean
isLeaf
private QueryNode
parent
static java.lang.String
PLAINTEXT_FIELD_NAME
private java.util.Hashtable<java.lang.String,java.lang.Object>
tags
protected boolean
toQueryStringIgnoreFields
If set to true the the method toQueryString will not write field names
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Constructor Summary
Constructors Constructor Description QueryNodeImpl()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
add(java.util.List<QueryNode> children)
void
add(QueryNode child)
protected void
allocate()
QueryNode
clone()
QueryNode
cloneTree()
Recursive clone the QueryNode tree The tags are not copied to the new tree when you call the cloneTree() methodboolean
containsTag(java.lang.String tagName)
verify if a node contains a tagjava.util.List<QueryNode>
getChildren()
get Children nodesQueryNode
getParent()
java.lang.Object
getTag(java.lang.String tagName)
Returns object stored under that tag namejava.util.Map<java.lang.String,java.lang.Object>
getTagMap()
Returns a map containing all tags attached to this query node.protected boolean
isDefaultField(java.lang.CharSequence fld)
This method is use toQueryString to detect if fld is the default fieldboolean
isLeaf()
verify if a node is a Leaf nodeprotected boolean
isRoot()
void
removeChildren(QueryNode childNode)
Remove a child nodevoid
removeFromParent()
Removes this query node from its parent.void
set(java.util.List<QueryNode> children)
protected void
setLeaf(boolean isLeaf)
private void
setParent(QueryNode parent)
void
setTag(java.lang.String tagName, java.lang.Object value)
Associate the specified value with the specified tagName.java.lang.String
toString()
Every implementation of this class should return pseudo xml like this: For FieldQueryNode: <field start='1' end='2' field='subject' text='foo'/>void
unsetTag(java.lang.String tagName)
Unset a tag.-
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.apache.lucene.queryparser.flexible.core.nodes.QueryNode
toQueryString
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Field Detail
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PLAINTEXT_FIELD_NAME
public static final java.lang.String PLAINTEXT_FIELD_NAME
- See Also:
- Constant Field Values
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isLeaf
private boolean isLeaf
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tags
private java.util.Hashtable<java.lang.String,java.lang.Object> tags
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clauses
private java.util.List<QueryNode> clauses
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parent
private QueryNode parent
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toQueryStringIgnoreFields
protected boolean toQueryStringIgnoreFields
If set to true the the method toQueryString will not write field names
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Method Detail
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allocate
protected void allocate()
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add
public final void add(java.util.List<QueryNode> children)
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isLeaf
public boolean isLeaf()
Description copied from interface:QueryNode
verify if a node is a Leaf node
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set
public final void set(java.util.List<QueryNode> children)
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cloneTree
public QueryNode cloneTree() throws java.lang.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
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clone
public QueryNode clone() throws java.lang.CloneNotSupportedException
- Overrides:
clone
in classjava.lang.Object
- Throws:
java.lang.CloneNotSupportedException
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setLeaf
protected void setLeaf(boolean isLeaf)
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getChildren
public final java.util.List<QueryNode> getChildren()
Description copied from interface:QueryNode
get Children nodes- Specified by:
getChildren
in interfaceQueryNode
- Returns:
- a List for QueryNode object. Returns null, for nodes that do not contain children. All leaf Nodes return null.
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setTag
public void setTag(java.lang.String tagName, java.lang.Object value)
Description copied from interface:QueryNode
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.
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unsetTag
public void unsetTag(java.lang.String tagName)
Description copied from interface:QueryNode
Unset a tag. tagName will be converted to lowercase.
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containsTag
public boolean containsTag(java.lang.String tagName)
verify if a node contains a tag- Specified by:
containsTag
in interfaceQueryNode
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getTag
public java.lang.Object getTag(java.lang.String tagName)
Description copied from interface:QueryNode
Returns object stored under that tag name
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setParent
private void setParent(QueryNode parent)
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isRoot
protected boolean isRoot()
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isDefaultField
protected boolean isDefaultField(java.lang.CharSequence fld)
This method is use toQueryString to detect if fld is the default field- Parameters:
fld
- - field name- Returns:
- true if fld is the default field
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toString
public java.lang.String toString()
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 interfaceQueryNode
- Overrides:
toString
in classjava.lang.Object
- See Also:
QueryNode.toString()
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getTagMap
public java.util.Map<java.lang.String,java.lang.Object> getTagMap()
Returns a map containing all tags attached to this query node.
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removeChildren
public void removeChildren(QueryNode childNode)
Description copied from interface:QueryNode
Remove a child node- Specified by:
removeChildren
in interfaceQueryNode
- Parameters:
childNode
- Which child to remove
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removeFromParent
public void removeFromParent()
Description copied from interface:QueryNode
Removes this query node from its parent.- Specified by:
removeFromParent
in interfaceQueryNode
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