Package io.ebean

package io.ebean

Core API (see Database, DB and Query).

Database

Provides the main API for fetching and persisting beans. We can obtain the "default database" via DB.getDefault() or just use methods on DB.

// Example find by id

Order order = DB.find(Order.class, 10);


// Example save

Customer customer = DB.getReference(Customer.class, 42);

Order newOrder = new Order();
newOrder.setStatus(Order.Status.NEW);
newOrder.setCustomer(customer);
...

DB.save(newOrder);


// Example: Eagerly fetching associations

// fetch Customer 42 including their billing and shipping addresses
Customer customer = DB.find(Customer.class)
		.setId(42)
		.fetch("billingAddress")
		.fetch("shippingAddress")
		.findOne();

Address billAddr = customer.getBillingAddress();
Address shipAddr = customer.getShippingAddress();

Interface Summary

Interface	Description
AutoTune	Administrative control of AutoTune during runtime.
BackgroundExecutor	Background executor service for executing of tasks asynchronously.
BeanState	Provides access to the internal state of an entity bean.
CallableSql	For making calls to stored procedures.
Database	Provides the API for fetching and saving beans to a particular database.
DocumentStore	Document storage operations.
DtoQuery<T>	Query for performing native SQL queries that return DTO Bean's.
EbeanServer	Deprecated.
ExampleExpression	Query by Example expression.
Expression	An expression that is part of a WHERE or HAVING clause.
ExpressionFactory	Expression factory for creating standard expressions.
ExpressionList<T>	List of Expressions that make up a where or having clause.
ExtendedServer	The extended API for Database.
FetchGroup<T>	Defines what part of the object graph to load (select and fetch clauses).
FetchGroupBuilder<T>	Builds a FetchGroup by adding fetch clauses.
FetchPath	Provides paths and properties for an object graph that can be used to control what parts of the object graph is fetching (select and fetch clauses) and also can be used to control JSON marshalling (what parts of the object graph are included in the JSON).
Filter<T>	Provides support for filtering and sorting lists of entities without going back to the database.
FutureIds<T>	FutureIds represents the result of a background query execution for the Id's.
FutureList<T>	FutureList represents the result of a background query execution that will return a list of entities.
FutureRowCount<T>	Represents the result of a background query execution for the total row count for a query.
Junction<T>	Represents a Conjunction or a Disjunction.
MergeOptions	Options used to control a merge.
ModifyAwareType	Owner object notified when a modification is detected.
PagedList<T>	Represents a page of results.
ProfileLocation	A location for profiling transactions and queries.
Query<T>	Object relational query for finding a List, Set, Map or single entity bean.
QueryIterator<T>	Used to provide iteration over query results.
RawSql	Used to build object graphs based on a raw SQL statement (rather than generated by Ebean).
RawSqlBuilder	Builds RawSql instances from a SQL string and column mappings.
RowConsumer	Used with SqlQuery to process potentially large queries reading directly from the JDBC ResultSet.
RowMapper<T>	Used with SqlQuery to map raw JDBC ResultSet to objects.
ScriptRunner	Runs DDL and SQL scripts.
SqlQuery	Query object for performing native SQL queries that return SqlRow or directly read ResultSet using a RowMapper.
SqlQuery.TypeQuery<T>	Query mapping to single scalar values.
SqlRow	Used to return raw SQL query results.
SqlUpdate	A SqlUpdate for executing insert update or delete statements.
Transaction	The Transaction object.
TransactionCallback	Provides a callback that can be registered with a Transaction.
Update<T>	An Insert Update or Delete statement.
UpdateQuery<T>	An update query typically intended to perform a bulk update of many rows that match the query.

Class Summary

Class	Description
BeanFinder<I,T>	Provides finder functionality for use with "Dependency Injection style" use of Ebean.
BeanRepository<I,T>	Provides finder functionality for use with "Dependency Injection style" use of Ebean.
CountedValue<A>	Holds a distinct value with it's count.
DatabaseFactory	Creates Database instances.
DB	DB is a registry of Database by name.
DocStoreQueueEntry	Bean holding the details to update the document store.
Ebean	Deprecated.
EbeanServerFactory	Deprecated.
EbeanVersion	Class to determine the ebean version.
EmptyPagedList<T>	An empty PagedList.
Expr	Expression factory for creating standard expressions for WHERE and HAVING clauses.
FetchConfig	Defines how a relationship is fetched via either normal SQL join, a eager secondary query, via lazy loading or via eagerly hitting L2 cache.
Finder<I,T>	Intended to be used as a base class for 'Finder' implementations that can then be injected or used as public static fields on the associated entity bean.
MergeOptionsBuilder	Builds a MergeOptions which is immutable and thread safe.
Model	A MappedSuperclass base class that provides convenience methods for inserting, updating and deleting beans.
OrderBy<T>	Represents an Order By for a Query.
OrderBy.Property	A property and its ascending descending order.
Pairs	Holds a list of value object pairs.
Pairs.Entry	A pair of 2 value objects.
TransactionCallbackAdapter	Adapter that can be extended for easier implementation of TransactionCallback.
TxScope	Holds the definition of how a transactional method should run.
ValuePair	Holds two values as the result of a difference comparison.
Version<T>	Wraps a version of a @History bean.

Enum Summary

Enum	Description
CacheMode	Enum to control the different cache modes for queryCache and beanCache.
CountDistinctOrder	Enumeration to use with Query.setCountDistinct(CountDistinctOrder).
DocStoreQueueEntry.Action	Action to either update or delete a document from the index.
Junction.Type	The type of Junction used in full text expressions.
LikeType	Used to specify the type of like matching used.
PersistenceContextScope	Defines the scope for PersistenceContext.
Query.LockType	The lock type (strength) to use with query FOR UPDATE row locking.
Query.LockWait	FOR UPDATE wait mode.
QueryType	The type of the query being executed.

Exception Summary

Exception	Description
AcquireLockException	Thrown when failing to acquire a pessimistic lock.
DataIntegrityException	Thrown when a foreign key constraint is enforced.
DuplicateKeyException	Thrown when a duplicate is attempted on a unique constraint.
PersistenceIOException	Captures and wraps IOException's occurring during ElasticSearch processing etc.
SerializableConflictException	Thrown at SERIALIZABLE isolation level for non-recoverable concurrent conflict.