MultiTerm (MG4J (big) 5.4.4)

java.lang.Object
- it.unimi.di.big.mg4j.query.nodes.Composite
- - it.unimi.di.big.mg4j.query.nodes.MultiTerm

All Implemented Interfaces:

Query, Serializable
```
public class MultiTerm
extends Composite
```
A node representing a virtual term obtained by merging the occurrences of the given (possibly weighted) terms.
This node is mainly useful when performing query expansion. The QueryBuilderVisitor used to generate document iterators can decide which policy to use for setting the frequency and the name of the virtual term.

Author:

Sebastiano Vigna

See Also:

MultiTermIndexIterator, Serialized Form

- Field Summary
  - Fields inherited from class it.unimi.di.big.mg4j.query.nodes.Composite
    query
- Constructor Summary
  
  Constructors
  Constructor Description
  
  MultiTerm(Query... query)
  Creates a new multi-term node.
- Method Summary
  
  Modifier and Type Method Description
  
  <T> T accept(QueryBuilderVisitor<T> visitor)
  Accepts a visitor.
  
  boolean equals(Object o)
  
  int hashCode()
  
  String toString()
  - Methods inherited from class it.unimi.di.big.mg4j.query.nodes.Composite
    components, toString
  - Methods inherited from class java.lang.Object
    clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - MultiTerm
```
public MultiTerm(Query... query)
```
    Creates a new multi-term node.
    
    Parameters:
    
    query - a vector of nodes representing distinct terms; they must be either instances of Term, or instances of Weight containing instances of Term.
    
    Throws:
    
    IllegalArgumentException - if some term appears twice in query, or if the specification is not followed.
- Method Detail
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - accept
```
public <T> T accept(QueryBuilderVisitor<T> visitor)
             throws QueryBuilderVisitorException
```
    Description copied from interface: Query
    
    Accepts a visitor.
    
    Parameters:
    
    visitor - the visitor.
    
    Returns:
    
    the result of the visit, or null if the visit should stop.
    
    Throws:
    
    QueryBuilderVisitorException
    
    See Also:
    
    Query
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object