Package ubic.gemma.persistence.util

Class Subquery

java.lang.Object

ubic.gemma.persistence.util.Subquery

public class Subquery
extends Object

Represents a subquery right-hand side of a Filter.

A subquery has rather limited structure:

select {rootAlias}.{propertyName} from {entityName} {rootAlias} join {aliases...} where {filter}

and is solely designed to nest a Filter in a subquery so that it can be applied to one-to-many relations.

The root alias is used whenever null is used as object alias in the aliases or filter. It can be declared by passing an Subquery.Alias with a null object alias and an empty property name.

Author:

poirgui

See Also:

Filter.by(String, String, Class, Filter.Operator, Subquery), Filter.by(String, String, Class, Filter.Operator, Subquery, String)

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Subquery.Alias

Constructor Summary

Constructors

Constructor	Description
Subquery(String entityName, String propertyName, List<Subquery.Alias> aliases, Filter filter)

Method Summary

Modifier and Type	Method	Description
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Subquery

public Subquery(String entityName,
                String propertyName,
                List<Subquery.Alias> aliases,
                Filter filter)

Method Detail

toString

public String toString()

Overrides:

toString in class Object