org.dspace.content.dao.impl

Class MetadataSchemaDAOImpl

java.lang.Object

org.dspace.core.AbstractHibernateDAO<MetadataSchema>

org.dspace.content.dao.impl.MetadataSchemaDAOImpl

All Implemented Interfaces:

MetadataSchemaDAO, GenericDAO<MetadataSchema>

public class MetadataSchemaDAOImpl
extends AbstractHibernateDAO<MetadataSchema>
implements MetadataSchemaDAO

Hibernate implementation of the Database Access Object interface class for the MetadataSchema object. This class is responsible for all database calls for the MetadataSchema object and is autowired by spring This class should never be accessed directly.

Author:

kevinvandevelde at atmire.com

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	MetadataSchemaDAOImpl()

Method Summary

Methods

Modifier and Type	Method and Description
MetadataSchema	find(Context context, String shortName) Get the schema corresponding with this short name.
List<MetadataSchema>	findAll(Context context, Class clazz) Fetch all persisted instances of a given object type.
MetadataSchema	findByNamespace(Context context, String namespace) Get the schema object corresponding to this namespace URI.
boolean	uniqueNamespace(Context context, int metadataSchemaId, String namespace) Return true if and only if the passed name appears within the allowed number of times in the current schema.
boolean	uniqueShortName(Context context, int metadataSchemaId, String name) Return true if and only if the passed name is unique.

Methods inherited from class org.dspace.core.AbstractHibernateDAO

count, count, countLong, create, createCriteria, createCriteria, createQuery, delete, findByID, findByID, findMany, findMany, findUnique, getHibernateSession, iterate, list, list, save, singleResult, singleResult, uniqueResult, uniqueResult

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.dspace.core.GenericDAO

create, delete, findByID, findByID, findMany, findUnique, save

Constructor Detail

MetadataSchemaDAOImpl

protected MetadataSchemaDAOImpl()

Method Detail

findByNamespace

public MetadataSchema findByNamespace(Context context,
                             String namespace)
                               throws SQLException

Get the schema object corresponding to this namespace URI.

Specified by:

findByNamespace in interface MetadataSchemaDAO

Parameters:

context - DSpace context

namespace - namespace URI to match

Returns:

metadata schema object or null if none found.

Throws:

SQLException - if database error

findAll

public List<MetadataSchema> findAll(Context context,
                           Class clazz)
                             throws SQLException

Description copied from interface: GenericDAO

Fetch all persisted instances of a given object type.

Specified by:

findAll in interface GenericDAO<MetadataSchema>

Overrides:

findAll in class AbstractHibernateDAO<MetadataSchema>

clazz - the desired type.

Returns:

list of DAOs of the same type as clazz

Throws:

SQLException - if database error

uniqueNamespace

public boolean uniqueNamespace(Context context,
                      int metadataSchemaId,
                      String namespace)
                        throws SQLException

Return true if and only if the passed name appears within the allowed number of times in the current schema.

Specified by:

uniqueNamespace in interface MetadataSchemaDAO

Parameters:

context - DSpace context

metadataSchemaId - schema id

namespace - namespace URI to match

Returns:

true of false

Throws:

SQLException - if database error

uniqueShortName

public boolean uniqueShortName(Context context,
                      int metadataSchemaId,
                      String name)
                        throws SQLException

Return true if and only if the passed name is unique.

Specified by:

uniqueShortName in interface MetadataSchemaDAO

Parameters:

context - DSpace context

metadataSchemaId - schema id

name - short name of schema

Returns:

true of false

Throws:

SQLException - if database error

find

public MetadataSchema find(Context context,
                  String shortName)
                    throws SQLException

Get the schema corresponding with this short name.

Specified by:

find in interface MetadataSchemaDAO

Parameters:

context - context, in case we need to read it in from DB

shortName - the short name for the schema

Returns:

the metadata schema object

Throws:

SQLException - if database error