org.hibernate.engine.spi

Class SubselectFetch

java.lang.Object

org.hibernate.engine.spi.SubselectFetch

public class SubselectFetch
extends Object

Author:

Gavin King

Constructor Summary

Constructors

Constructor and Description
SubselectFetch(String alias, Loadable loadable, QueryParameters queryParameters, Set resultingEntityKeys, Map namedParameterLocMap) Construct a SubselectFetch instance.
SubselectFetch(String subselectFetchQueryFragment, String alias, Loadable loadable, QueryParameters queryParameters, Set resultingEntityKeys, Map namedParameterLocMap) Construct a SubselectFetch instance using the provided subselect fetch query fragment, subselectFetchQueryFragment.

Method Summary

Modifier and Type	Method and Description
static String	createSubselectFetchQueryFragment(QueryParameters queryParameters) Create the subselect fetch query fragment for the provided QueryParameters with SELECT and ORDER BY clauses removed.
Map	getNamedParameterLocMap()
QueryParameters	getQueryParameters()
Set	getResult() Get the Set of EntityKeys
String	toString()
String	toSubselectString(String ukname)

Methods inherited from class java.lang.Object

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

Constructor Detail

SubselectFetch

public SubselectFetch(String alias,
                      Loadable loadable,
                      QueryParameters queryParameters,
                      Set resultingEntityKeys,
                      Map namedParameterLocMap)

Construct a SubselectFetch instance. The subselect fetch query fragment is generated by createSubselectFetchQueryFragment(org.hibernate.engine.spi.QueryParameters). If the same value for queryParameters is to be used when constructing multiple SubselectFetch objects, then it is preferable to generate the subselect fetch query fragment using createSubselectFetchQueryFragment(org.hibernate.engine.spi.QueryParameters), and pass the result as an argument to constructor SubselectFetch(String, String, Loadable, QueryParameters, Set, Map).

Parameters:

alias - - the table alias used in the subselect fetch query fragment (to be generated by createSubselectFetchQueryFragment(QueryParameters) that corresponds to loadable;

loadable - - the Loadable for the associated entities to be subselect fetched;

queryParameters - - the query parameters;

resultingEntityKeys - - the EntityKey objects for the entities to be subselect fetched;

namedParameterLocMap - - mapping from named parameter to the parameter index located in the subselect fetch query fragment.

See Also:

SubselectFetch(String, String, Loadable, QueryParameters, Set, Map)

SubselectFetch

public SubselectFetch(String subselectFetchQueryFragment,
                      String alias,
                      Loadable loadable,
                      QueryParameters queryParameters,
                      Set resultingEntityKeys,
                      Map namedParameterLocMap)

Construct a SubselectFetch instance using the provided subselect fetch query fragment, subselectFetchQueryFragment. It is assumed that subselectFetchQueryFragment is the result of calling createSubselectFetchQueryFragment(org.hibernate.engine.spi.QueryParameters) with the same value provided for queryParameters.

Parameters:

subselectFetchQueryFragment - - the subselect fetch query fragment;

alias - - the table alias used in subselectFetchQueryFragment that corresponds to loadable;

loadable - - the Loadable for the associated entities to be subselect fetched;

queryParameters - - the query parameters;

resultingEntityKeys - - the EntityKey objects for the entities to be subselect fetched;

namedParameterLocMap - - mapping from named parameter to the parameter index located in the subselect fetch query fragment.

Method Detail

createSubselectFetchQueryFragment

public static String createSubselectFetchQueryFragment(QueryParameters queryParameters)

Create the subselect fetch query fragment for the provided QueryParameters with SELECT and ORDER BY clauses removed.

Parameters:

queryParameters - -the query parameters.

Returns:

the subselect fetch query fragment.

getQueryParameters

public QueryParameters getQueryParameters()

getResult

public Set getResult()

Get the Set of EntityKeys

toSubselectString

public String toSubselectString(String ukname)

toString

public String toString()

Overrides:

toString in class Object

getNamedParameterLocMap

public Map getNamedParameterLocMap()