com.exalead.search.query.node

Class Near

java.lang.Object

com.exalead.search.query.node.Node

com.exalead.search.query.node.NaryNode

com.exalead.search.query.node.Near

public class Near
extends NaryNode

Orderless proximity matching.
This node matches if all words are found within a sliding window of size "distance" words.

Nested Class Summary

Nested classes/interfaces inherited from class com.exalead.search.query.node.NaryNode

NaryNode.ScoreAction

Field Summary

Fields

Modifier and Type	Field and Description
int	distance Proximity matching window size

Fields inherited from class com.exalead.search.query.node.NaryNode

content

Fields inherited from class com.exalead.search.query.node.Node

indexOptions

Constructor Summary

Constructors

Constructor and Description
Near()
Near(int distance) Create a proximity matching node with a fixed distance.
Near(int distance, java.util.List<Node> children, IndexOptions options)
Near(int distance, Node... children) Create a proximity matching node with a fixed distance.
Near(int distance, Node n1, Node n2) Create a proximity matching node with a fixed distance.
Near(java.util.List<Node> children, java.util.List<java.lang.Integer> distances)
Near(java.util.List<Node> children, java.util.List<java.lang.Integer> distances, IndexOptions options)
Near(Near other)

Method Summary

Modifier and Type	Method and Description
Node	accept(NodeVisitor visitor)
void	addChildWithDist(int dist, Node child) add a child with the given distance to the previous child.
Node	cloneNode()
int	getDistance() Get the proximity matching distance
void	setDistance(int distance) Set the proximity matching distance
void	toELLQL(java.lang.StringBuilder buffer, boolean sortNAry)
boolean	useGlobalDistance()

Methods inherited from class com.exalead.search.query.node.NaryNode

addChild, addChildren, contentToELLQLSeq, copyContentFrom, copyContentTo, doubleToEllqlString, getContent, getContentSize, getContentUnsafe, setContent

Methods inherited from class com.exalead.search.query.node.Node

copyOptionsFrom, escapeStr, getHighlight, toELLQLBinary, toELLQLConstant, toELLQLNAry, toELLQLUnary, unEscapeStr

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

distance

public int distance

Proximity matching window size

Constructor Detail

Near

public Near()

Near

public Near(int distance)

Create a proximity matching node with a fixed distance.

Parameters:

distance - must be >= 1

Near

public Near(int distance,
            Node n1,
            Node n2)

Create a proximity matching node with a fixed distance.

Parameters:

distance - must be >= 1

Near

public Near(int distance,
            Node... children)

Create a proximity matching node with a fixed distance.

Parameters:

distance - must be >= 1

Near

public Near(int distance,
            java.util.List<Node> children,
            IndexOptions options)

Near

public Near(java.util.List<Node> children,
            java.util.List<java.lang.Integer> distances)

Near

public Near(java.util.List<Node> children,
            java.util.List<java.lang.Integer> distances,
            IndexOptions options)

Near

public Near(Near other)

Method Detail

useGlobalDistance

public boolean useGlobalDistance()

cloneNode

public Node cloneNode()

Specified by:

cloneNode in class Node

addChildWithDist

public void addChildWithDist(int dist,
                             Node child)

add a child with the given distance to the previous child. The dist argument is ignored for the first child

getDistance

public int getDistance()

Get the proximity matching distance

setDistance

public void setDistance(int distance)

Set the proximity matching distance

toELLQL

public void toELLQL(java.lang.StringBuilder buffer,
                    boolean sortNAry)

Specified by:

toELLQL in class Node

accept

public Node accept(NodeVisitor visitor)
            throws QueryProcessingException

Specified by:

accept in class Node

Throws:

QueryProcessingException