org.trails.persistence
Interface PersistenceService

public interface PersistenceService

Method Summary

<T> java.util.List<T>	getAllInstances(java.lang.Class<T> type)
java.util.List	getAllTypes()
java.io.Serializable	getIdentifier(java.lang.Object data, IClassDescriptor classDescriptor)
<T> T	getInstance(java.lang.Class<T> type) A convenience method for getting a singleton instance of specific type
<T> T	getInstance(java.lang.Class<T> type, java.io.Serializable id)
<T> java.util.List<T>	getInstances(java.lang.Class<T> type, int startIndex, int maxResults)
boolean	isTransient(java.lang.Object data, IClassDescriptor classDescriptor)
<T> T	loadInstance(java.lang.Class<T> type, java.io.Serializable id)
void	remove(java.lang.Object instance)
void	removeAll(java.util.Collection collection)
<T> T	save(T instance)

Method Detail

getInstance

<T> T getInstance(java.lang.Class<T> type,
                  java.io.Serializable id)

loadInstance

<T> T loadInstance(java.lang.Class<T> type,
                   java.io.Serializable id)

getAllInstances

<T> java.util.List<T> getAllInstances(java.lang.Class<T> type)

getInstances

<T> java.util.List<T> getInstances(java.lang.Class<T> type,
                                   int startIndex,
                                   int maxResults)

getAllTypes

java.util.List getAllTypes()

Returns:

a List containing all the classes this persistence service knows about

save

<T> T save(T instance)

remove

void remove(java.lang.Object instance)

removeAll

void removeAll(java.util.Collection collection)

getInstance

<T> T getInstance(java.lang.Class<T> type)

A convenience method for getting a singleton instance of specific type

Type Parameters:

T - Specific type of the entity

Parameters:

type - Type of singleton entity you want return

Returns:

Returns the singleton entity of requested type

getIdentifier

java.io.Serializable getIdentifier(java.lang.Object data,
                                   IClassDescriptor classDescriptor)

isTransient

boolean isTransient(java.lang.Object data,
                    IClassDescriptor classDescriptor)