# Uses of Package
org.springframework.dao

- Packages that use org.springframework.dao
  Package | Description
  --- | ---
  org.springframework.dao | Exception hierarchy enabling sophisticated error handling independent of the data access approach in use.
  org.springframework.dao.support | Support classes for DAO implementations, providing miscellaneous utility methods.
  org.springframework.jca.cci | This package contains Spring's support for the Common Client Interface (CCI), as defined by the J2EE Connector Architecture.
  org.springframework.jca.cci.core | Provides the core JCA CCI support, based on CciTemplate and its associated callback interfaces.
  org.springframework.jca.cci.object | The classes in this package represent EIS operations as threadsafe, reusable objects.
  org.springframework.jdbc | The classes in this package make JDBC easier to use and reduce the likelihood of common errors.
  org.springframework.jdbc.core | Provides the core JDBC framework, based on JdbcTemplate and its associated callback interfaces and helper objects.
  org.springframework.jdbc.core.namedparam | JdbcTemplate variant with named parameter support.
  org.springframework.jdbc.core.simple | Simplification layer for table inserts and stored procedure calls.
  org.springframework.jdbc.core.support | Classes supporting the `org.springframework.jdbc.core` package.
  org.springframework.jdbc.datasource.init | Provides extensible support for initializing databases through scripts.
  org.springframework.jdbc.datasource.lookup | Provides a strategy for looking up JDBC DataSources by name.
  org.springframework.jdbc.object | The classes in this package represent RDBMS queries, updates, and stored procedures as threadsafe, reusable objects.
  org.springframework.jdbc.support | Support classes for the JDBC framework, used by the classes in the jdbc.core and jdbc.object packages.
  org.springframework.jdbc.support.incrementer | Provides a support framework for incrementing database table values via sequences, with implementations for various databases.
  org.springframework.jdbc.support.xml | Abstraction for handling fields of SQLXML data type.
  org.springframework.orm | Root package for Spring's O/R Mapping integration classes.
  org.springframework.orm.hibernate5 | Package providing integration of Hibernate 5.x with Spring concepts.
  org.springframework.orm.hibernate5.support | Classes supporting the `org.springframework.orm.hibernate5` package.
  org.springframework.orm.jpa | Package providing integration of JPA (Java Persistence API) with Spring concepts.
  org.springframework.orm.jpa.support | Classes supporting the `org.springframework.orm.jpa` package.
  org.springframework.orm.jpa.vendor | Support classes for adapting to specific JPA vendors.
  org.springframework.r2dbc | The classes in this package make R2DBC easier to use and reduce the likelihood of common errors.
  org.springframework.r2dbc.connection | Provides a utility class for easy ConnectionFactory access, a ReactiveTransactionManager for a single ConnectionFactory, and various simple ConnectionFactory implementations.
  org.springframework.r2dbc.connection.lookup | Provides a strategy for looking up R2DBC ConnectionFactories by name.
  org.springframework.r2dbc.core.binding | Classes providing an abstraction over SQL bind markers.
  org.springframework.test.context.junit4 | Support classes for integrating the Spring TestContext Framework with JUnit 4.12 or higher.
  org.springframework.test.context.testng | Support classes for integrating the Spring TestContext Framework with TestNG.

- Classes in org.springframework.dao used by org.springframework.dao
  Class and Description
  ConcurrencyFailureException Exception thrown on various data access concurrency failures.
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.
  DataIntegrityViolationException Exception thrown when an attempt to insert or update data results in violation of an integrity constraint.
  DataRetrievalFailureException Exception thrown if certain expected data could not be retrieved, e.g.
  IncorrectResultSizeDataAccessException Data access exception thrown when a result was not of the expected size, for example when expecting a single row but getting 0 or more than 1 rows.
  InvalidDataAccessResourceUsageException Root for exceptions thrown when we use a data access resource incorrectly.
  NonTransientDataAccessException Root of the hierarchy of data access exceptions that are considered non-transient - where a retry of the same operation would fail unless the cause of the Exception is corrected.
  NonTransientDataAccessResourceException Data access exception thrown when a resource fails completely and the failure is permanent.
  PessimisticLockingFailureException Exception thrown on a pessimistic locking violation.
  TransientDataAccessException Root of the hierarchy of data access exceptions that are considered transient - where a previously failed operation might be able to succeed when the operation is retried without any intervention by application-level functionality.

- Classes in org.springframework.dao used by org.springframework.dao.support
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.
  IncorrectResultSizeDataAccessException Data access exception thrown when a result was not of the expected size, for example when expecting a single row but getting 0 or more than 1 rows.
  TypeMismatchDataAccessException Exception thrown on mismatch between Java type and database type: for example on an attempt to set an object of the wrong type in an RDBMS column.

- Classes in org.springframework.dao used by org.springframework.jca.cci
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.
  DataAccessResourceFailureException Data access exception thrown when a resource fails completely: for example, if we can't connect to a database using JDBC.
  InvalidDataAccessResourceUsageException Root for exceptions thrown when we use a data access resource incorrectly.
  NonTransientDataAccessException Root of the hierarchy of data access exceptions that are considered non-transient - where a retry of the same operation would fail unless the cause of the Exception is corrected.
  NonTransientDataAccessResourceException Data access exception thrown when a resource fails completely and the failure is permanent.

- Classes in org.springframework.dao used by org.springframework.jca.cci.core
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.

- Classes in org.springframework.dao used by org.springframework.jca.cci.object
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.

- Classes in org.springframework.dao used by org.springframework.jdbc
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.
  DataAccessResourceFailureException Data access exception thrown when a resource fails completely: for example, if we can't connect to a database using JDBC.
  DataRetrievalFailureException Exception thrown if certain expected data could not be retrieved, e.g.
  IncorrectUpdateSemanticsDataAccessException Data access exception thrown when something unintended appears to have happened with an update, but the transaction hasn't already been rolled back.
  InvalidDataAccessResourceUsageException Root for exceptions thrown when we use a data access resource incorrectly.
  NonTransientDataAccessException Root of the hierarchy of data access exceptions that are considered non-transient - where a retry of the same operation would fail unless the cause of the Exception is corrected.
  NonTransientDataAccessResourceException Data access exception thrown when a resource fails completely and the failure is permanent.
  UncategorizedDataAccessException Normal superclass when we can't distinguish anything more specific than "something went wrong with the underlying resource": for example, an SQLException from JDBC we can't pinpoint more precisely.

- Classes in org.springframework.dao used by org.springframework.jdbc.core
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.

- Classes in org.springframework.dao used by org.springframework.jdbc.core.namedparam
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.

- Classes in org.springframework.dao used by org.springframework.jdbc.core.simple
  Class and Description
  InvalidDataAccessApiUsageException Exception thrown on incorrect usage of the API, such as failing to "compile" a query object that needed compilation before execution.

- Classes in org.springframework.dao used by org.springframework.jdbc.core.support
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.

- Classes in org.springframework.dao used by org.springframework.jdbc.datasource.init
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.

- Classes in org.springframework.dao used by org.springframework.jdbc.datasource.lookup
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.
  NonTransientDataAccessException Root of the hierarchy of data access exceptions that are considered non-transient - where a retry of the same operation would fail unless the cause of the Exception is corrected.

- Classes in org.springframework.dao used by org.springframework.jdbc.object
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.
  InvalidDataAccessApiUsageException Exception thrown on incorrect usage of the API, such as failing to "compile" a query object that needed compilation before execution.

- Classes in org.springframework.dao used by org.springframework.jdbc.support
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.
  DataRetrievalFailureException Exception thrown if certain expected data could not be retrieved, e.g.
  InvalidDataAccessApiUsageException Exception thrown on incorrect usage of the API, such as failing to "compile" a query object that needed compilation before execution.

- Classes in org.springframework.dao used by org.springframework.jdbc.support.incrementer
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.

- Classes in org.springframework.dao used by org.springframework.jdbc.support.xml
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.
  InvalidDataAccessApiUsageException Exception thrown on incorrect usage of the API, such as failing to "compile" a query object that needed compilation before execution.
  NonTransientDataAccessException Root of the hierarchy of data access exceptions that are considered non-transient - where a retry of the same operation would fail unless the cause of the Exception is corrected.

- Classes in org.springframework.dao used by org.springframework.orm
  Class and Description
  ConcurrencyFailureException Exception thrown on various data access concurrency failures.
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.
  DataRetrievalFailureException Exception thrown if certain expected data could not be retrieved, e.g.
  NonTransientDataAccessException Root of the hierarchy of data access exceptions that are considered non-transient - where a retry of the same operation would fail unless the cause of the Exception is corrected.
  OptimisticLockingFailureException Exception thrown on an optimistic locking violation.
  TransientDataAccessException Root of the hierarchy of data access exceptions that are considered transient - where a previously failed operation might be able to succeed when the operation is retried without any intervention by application-level functionality.

- Classes in org.springframework.dao used by org.springframework.orm.hibernate5
  Class and Description
  ConcurrencyFailureException Exception thrown on various data access concurrency failures.
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.
  DataRetrievalFailureException Exception thrown if certain expected data could not be retrieved, e.g.
  InvalidDataAccessApiUsageException Exception thrown on incorrect usage of the API, such as failing to "compile" a query object that needed compilation before execution.
  InvalidDataAccessResourceUsageException Root for exceptions thrown when we use a data access resource incorrectly.
  NonTransientDataAccessException Root of the hierarchy of data access exceptions that are considered non-transient - where a retry of the same operation would fail unless the cause of the Exception is corrected.
  OptimisticLockingFailureException Exception thrown on an optimistic locking violation.
  TransientDataAccessException Root of the hierarchy of data access exceptions that are considered transient - where a previously failed operation might be able to succeed when the operation is retried without any intervention by application-level functionality.
  UncategorizedDataAccessException Normal superclass when we can't distinguish anything more specific than "something went wrong with the underlying resource": for example, an SQLException from JDBC we can't pinpoint more precisely.

- Classes in org.springframework.dao used by org.springframework.orm.hibernate5.support
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.
  DataAccessResourceFailureException Data access exception thrown when a resource fails completely: for example, if we can't connect to a database using JDBC.

- Classes in org.springframework.dao used by org.springframework.orm.jpa
  Class and Description
  ConcurrencyFailureException Exception thrown on various data access concurrency failures.
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.
  DataAccessResourceFailureException Data access exception thrown when a resource fails completely: for example, if we can't connect to a database using JDBC.
  DataRetrievalFailureException Exception thrown if certain expected data could not be retrieved, e.g.
  NonTransientDataAccessException Root of the hierarchy of data access exceptions that are considered non-transient - where a retry of the same operation would fail unless the cause of the Exception is corrected.
  OptimisticLockingFailureException Exception thrown on an optimistic locking violation.
  TransientDataAccessException Root of the hierarchy of data access exceptions that are considered transient - where a previously failed operation might be able to succeed when the operation is retried without any intervention by application-level functionality.
  UncategorizedDataAccessException Normal superclass when we can't distinguish anything more specific than "something went wrong with the underlying resource": for example, an SQLException from JDBC we can't pinpoint more precisely.

- Classes in org.springframework.dao used by org.springframework.orm.jpa.support
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.

- Classes in org.springframework.dao used by org.springframework.orm.jpa.vendor
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.

- Classes in org.springframework.dao used by org.springframework.r2dbc
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.
  NonTransientDataAccessException Root of the hierarchy of data access exceptions that are considered non-transient - where a retry of the same operation would fail unless the cause of the Exception is corrected.
  UncategorizedDataAccessException Normal superclass when we can't distinguish anything more specific than "something went wrong with the underlying resource": for example, an SQLException from JDBC we can't pinpoint more precisely.

- Classes in org.springframework.dao used by org.springframework.r2dbc.connection
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.

- Classes in org.springframework.dao used by org.springframework.r2dbc.connection.lookup
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.
  NonTransientDataAccessException Root of the hierarchy of data access exceptions that are considered non-transient - where a retry of the same operation would fail unless the cause of the Exception is corrected.

- Classes in org.springframework.dao used by org.springframework.r2dbc.core.binding
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.
  NonTransientDataAccessException Root of the hierarchy of data access exceptions that are considered non-transient - where a retry of the same operation would fail unless the cause of the Exception is corrected.

- Classes in org.springframework.dao used by org.springframework.test.context.junit4
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.

- Classes in org.springframework.dao used by org.springframework.test.context.testng
  Class and Description
  DataAccessException Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development.