org.hibernate.loader
Class BasicLoader

java.lang.Object
  org.hibernate.loader.Loader
      org.hibernate.loader.BasicLoader

Direct Known Subclasses:

OuterJoinLoader, QueryLoader, QueryTranslatorImpl

public abstract class BasicLoader
extends Loader

Uses the default mapping from property to result set column alias defined by the entities' persisters. Used when Hibernate is generating result set column aliases.

Author:

Gavin King

Field Summary

protected static String[]

NO_SUFFIX

Constructor Summary

BasicLoader(SessionFactoryImplementor factory)

Method Summary

static String[]	generateSuffixes(int length) Utility method that generates 0_, 1_ suffixes.
static String[]	generateSuffixes(int seed, int length) Utility method that generates alias suffixes.
protected CollectionAliases[]	getCollectionAliases()
protected abstract String[]	getCollectionSuffixes()
protected EntityAliases[]	getEntityAliases() Get the result set descriptor
protected abstract String[]	getSuffixes()
protected void	postInstantiate() Calculate and cache select-clause suffixes.

Methods inherited from class org.hibernate.loader.Loader

applyLocks, autoDiscoverTypes, bindNamedParameters, bindParameterValues, bindPositionalParameters, checkScrollability, doList, getAliases, getCollectionOwners, getCollectionPersisters, getEntityEagerPropertyFetches, getEntityPersisters, getFactory, getLockModes, getNamedParameterLocs, getOwnerAssociationTypes, getOwners, getQueryIdentifier, getResultColumnOrRow, getResultList, getResultSet, getSQLString, hasSubselectLoadableCollections, isSingleRowLoader, isSubselectLoadingEnabled, list, loadCollection, loadCollectionBatch, loadCollectionSubselect, loadEntity, loadEntity, loadEntityBatch, loadSequentialRowsForward, loadSequentialRowsReverse, loadSingleRow, needsFetchingScroll, prepareQueryStatement, preprocessSQL, scroll, toString, upgradeLocks

Methods inherited from class java.lang.Object

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

Field Detail

NO_SUFFIX

protected static final String[] NO_SUFFIX

Constructor Detail

BasicLoader

public BasicLoader(SessionFactoryImplementor factory)

Method Detail

getEntityAliases

protected final EntityAliases[] getEntityAliases()

Description copied from class: Loader

Get the result set descriptor

Specified by:

getEntityAliases in class Loader

getCollectionAliases

protected final CollectionAliases[] getCollectionAliases()

Specified by:

getCollectionAliases in class Loader

getSuffixes

protected abstract String[] getSuffixes()

getCollectionSuffixes

protected abstract String[] getCollectionSuffixes()

postInstantiate

protected void postInstantiate()

Description copied from class: Loader

Calculate and cache select-clause suffixes. Must be called by subclasses after instantiation.

Overrides:

postInstantiate in class Loader

generateSuffixes

public static String[] generateSuffixes(int length)

Utility method that generates 0_, 1_ suffixes. Subclasses don't necessarily need to use this algorithm, but it is intended that they will in most cases.

This form simply calls generateSuffixes(0,length

Parameters:

length - The number of suffixes to generate

Returns:

The array of generated suffixes; the array length = length.

generateSuffixes

public static String[] generateSuffixes(int seed,
                                        int length)

Utility method that generates alias suffixes.

Parameters:

seed - The number from which to begin the suffix sequencing. For example, a seed of 0 would return 0_ as the first suffix; a seed of 5 would return 5_ as the first suffix.

length - The number of suffixes to generate

Returns:

The array of generated suffixes; the array length = length.