it.unimi.di.mg4j.query.nodes
Class Select

java.lang.Object
  it.unimi.di.mg4j.query.nodes.Select

All Implemented Interfaces:

Query, Serializable

public class Select
extends Object
implements Query

A node representing an index selection.

Author:

Sebastiano Vigna

See Also:

Serialized Form

Field Summary

CharSequence	index The name of the index selected for the subquery.
Query	query The only underlying node.

Constructor Summary

Select(CharSequence index, Query query)

Method Summary

<T> T	accept(QueryBuilderVisitor<T> visitor) Accepts a visitor.
boolean	equals(Object o)
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

index

public final CharSequence index

The name of the index selected for the subquery.

query

public final Query query

The only underlying node.

Constructor Detail

Select

public Select(CharSequence index,
              Query query)

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.

Specified by:

accept in interface Query

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