org.oreodata
Class DataRegistryImpl

java.lang.Object
  |
  +--java.rmi.server.RemoteObject
        |
        +--java.rmi.server.RemoteServer
              |
              +--java.rmi.server.UnicastRemoteObject
                    |
                    +--org.oreodata.DataRegistryImpl

All Implemented Interfaces:

DataRegistry, java.rmi.Remote, java.io.Serializable

public class DataRegistryImpl

extends java.rmi.server.UnicastRemoteObject

implements DataRegistry

This object plays a central role in Oreo's object-relational mapping. It is essentially a repository of "metadata" that allows us to get at the various containers as well as "exemplars" of the various data records.

Author:

Serialized Form

Field Summary

Fields inherited from class java.rmi.server.RemoteObject

ref

Constructor Summary

DataRegistryImpl()

Method Summary

OreoDataSource	getDataSource(java.lang.String name)
java.util.List	getDataSourceNames()
static DataRegistry	getDefaultRegistry()
Record	getExemplar(java.lang.String type)
RecordDescriptor	getMetadata(java.lang.String type) get record Metadata for the type
java.util.List	getRecordNames()
void	registerDataSource(DataSourceMetadata dsm) register the metadata for a DataSource by its unique name.
void	registerDataSource(OreoDataSource source) register a DataSource by its unique name
void	registerDataSourceAlias(java.lang.String alias, DataSourceMetadata dsm)
void	registerRecordType(RecordDescriptor descriptor) Register the metadata for a record type.
static void	setDefaultRegistry(DataRegistry registry) Optional hook to call if you want to substitute a custom DataRegistry implementation for the default one.
void	setRemoteRegistry(DataRegistry registry) Set a second DataRegistry source that will be used if the type is not found locally.

Methods inherited from class java.rmi.server.UnicastRemoteObject

clone, exportObject, exportObject, exportObject, unexportObject

Methods inherited from class java.rmi.server.RemoteServer

getClientHost, getLog, setLog

Methods inherited from class java.rmi.server.RemoteObject

equals, getRef, hashCode, toString, toStub

Methods inherited from class java.lang.Object

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

Constructor Detail

DataRegistryImpl

public DataRegistryImpl()
                 throws java.io.IOException

Method Detail

getDefaultRegistry

public static DataRegistry getDefaultRegistry()

setDefaultRegistry

public static void setDefaultRegistry(DataRegistry registry)

Optional hook to call if you want to substitute a custom DataRegistry implementation for the default one.

setRemoteRegistry

public void setRemoteRegistry(DataRegistry registry)
                       throws java.io.IOException

Set a second DataRegistry source that will be used if the type is not found locally. This will likely be on a remote machine, hence the nomenclature.

java.io.IOException

getMetadata

public RecordDescriptor getMetadata(java.lang.String type)
                             throws java.io.IOException

Description copied from interface: DataRegistry

get record Metadata for the type

Specified by:

getMetadata in interface DataRegistry

java.io.IOException

registerRecordType

public void registerRecordType(RecordDescriptor descriptor)
                        throws java.io.IOException

Description copied from interface: DataRegistry

Register the metadata for a record type.

Specified by:

registerRecordType in interface DataRegistry

java.io.IOException

registerDataSource

public void registerDataSource(OreoDataSource source)
                        throws java.io.IOException

Description copied from interface: DataRegistry

register a DataSource by its unique name

Specified by:

registerDataSource in interface DataRegistry

java.io.IOException

registerDataSource

public void registerDataSource(DataSourceMetadata dsm)
                        throws java.io.IOException

Description copied from interface: DataRegistry

register the metadata for a DataSource by its unique name.

Specified by:

registerDataSource in interface DataRegistry

java.io.IOException

getDataSource

public OreoDataSource getDataSource(java.lang.String name)
                             throws java.io.IOException

Specified by:

getDataSource in interface DataRegistry

Returns:

a DataSource by its unique name

java.io.IOException

getExemplar

public Record getExemplar(java.lang.String type)
                   throws java.io.IOException

Specified by:

getExemplar in interface DataRegistry

Returns:

a "virgin" record of the given type

java.io.IOException

getDataSourceNames

public java.util.List getDataSourceNames()
                                  throws java.io.IOException

Specified by:

getDataSourceNames in interface DataRegistry

Returns:

a List of the names of all of the data sources that this data registry knows about.

java.io.IOException

getRecordNames

public java.util.List getRecordNames()
                              throws java.io.IOException

Specified by:

getRecordNames in interface DataRegistry

Returns:

a List of the names of all of the record types that this data registry knows about.

java.io.IOException

registerDataSourceAlias

public void registerDataSourceAlias(java.lang.String alias,
                                    DataSourceMetadata dsm)
                             throws java.io.IOException

Specified by:

registerDataSourceAlias in interface DataRegistry

java.io.IOException