程序包 org.opencms.db

Low-level database connection and access functionality.

请参阅: 说明

接口概要

接口	说明
I_CmsCacheKey	Describes the cache key generating methods.
I_CmsDbContextFactory	This interface defines a factory to create runtime info objects.
I_CmsDriver	Generic base driver interface.
I_CmsHistoryDriver	Definitions of all required history driver methods.
I_CmsPreparedStatementParameter	An interface which represents a parameter value which is going to be used in an SQL prepared statement.
I_CmsProjectDriver	Definitions of all required project driver methods.
I_CmsQueryFragment	An interface for classes which are used to generate SQL statements.
I_CmsSubscriptionDriver	The interface for drivers handling subscriptions and user tracking.
I_CmsUserDriver	Definitions of all required user driver methods.
I_CmsVfsDriver	Definitions of all required VFS driver methods.

类概要

类	说明
CmsAlias	This class represents an alias from a virtual path to a resource in the VFS.
CmsAliasFilter	This class is used for filtering aliases in database operations.
CmsAliasManager	The alias manager provides access to the aliases stored in the database.
CmsCacheKey	Generates the cache keys for the user and permission caches.
CmsCacheSettings	The settings of the OpenCms memory monitor.
CmsCompositeQueryFragment	A query fragment which aggregates the results from a list of other query fragments.
CmsDbContext	Wraps context information to access the OpenCms database.
CmsDbContextFactory	A default implementation of I_CmsDbContextFactory.
CmsDbPool	Various methods to create DBCP pools.
CmsDbUtil	Generic database utility functions.
CmsDefaultUsers	Provides access to the names of the OpenCms default users and groups.
CmsDriverManager	The OpenCms driver manager.
CmsExportPoint	Contains the data of a single export point.
CmsExportPointDriver	Provides methods to write export points to the "real" file system.
CmsImportFolder	Allows to import resources from the filesystem or a ZIP file into the OpenCms VFS.
CmsLoginManager	Provides functions used to check the validity of a user login.
CmsLoginMessage	A message to display when a user logs in to the system.
CmsLogToPublishListChangeConverter	This class can be used to convert a series of log entry objects to a set of changes which should be applied to the user publish list.
CmsPagingQuery	Wrapper for CmsSelectQuery objects which adds SQL code for results paging.
CmsPreparedStatementIntParameter	A prepared statement parameter of type 'int'.
CmsPreparedStatementLongParameter	A prepared statement of type 'long'.
CmsPreparedStatementStringParameter	A prepared statement parameter of type 'string'.
CmsPublishedResource	Represents the state of a published resource *before* it got published.
CmsPublishedResource.CmsPublishedResourceState	Add new resource states under consideration of the move operation.
CmsPublishList	A container for all new/changed/deteled Cms resources that are published together.
CmsResourceState	Enumeration class for the different resource states.
CmsRewriteAlias	This class represents an alias which does not just map a fixed path to a fixed resource, but instead uses a regular expression substitution to determine the target path.
CmsRewriteAliasFilter	Filter class used for selecting rewrite aliases from the database.
CmsRewriteAliasMatcher	Helper class used for matching rewrite aliases to incoming request URIs.
CmsRewriteAliasMatcher.RewriteResult	The result of a match operation.
CmsSecurityManager	The OpenCms security manager.
CmsSelectQuery	A class for generating SQL SELECT statements.
CmsSimpleQueryFragment	A simple query fragment which takes its SQL string and query parameters as constructor arguments.
CmsSqlBooleanClause	Class for generating an SQL boolean expression.
CmsSqlManager	Superclass for all SQL manager implementations.
CmsStatementBuilder	A helper class used to accumulate SQL fragments together with the corresponding query parameters.
CmsSubscriptionFilter	Provides filters for getting resources subscribed by a user or group in a specified time range.
CmsSubscriptionManager	Manager that provides methods to subscribe resources to users, read subscribed or unvisited resources and more.
CmsSubscriptionReadMode	The read modes to get subscribed resources of a user or group.
CmsUserExportSettings	Provides the user export settings.
CmsUserSettings	Object to conveniently access and modify the users workplace settings.
CmsUserSettings.CmsSearchResultStyle	Enumeration class for workplace search result styles.
CmsUserTrackingResourceHandler	This resource handler checks if a resource has to be marked as visited by the current user.
CmsVisitedByFilter	Provides filters for getting resources visited by a user in a specified time range.
CmsVisitEntry	A bean which represents a user having visited a page.
CmsVisitEntryFilter	A filter which contains criteria for reading CmsVisitEntry instances from the database.
Messages	Convenience class to access the localized messages of this OpenCms package.

枚举概要

枚举	说明
CmsUserSettings.UploadVariant	A enum for the different upload variants.

异常错误概要

异常错误	说明
CmsDbConsistencyException	Signals that a data source consistency problem has been detected.
CmsDbEntryAlreadyExistsException	Signals that an attempt to create an object was not successfull because it already exists.
CmsDbEntryNotFoundException	Signals that an attempt to read an object from a data source, that is supposed to exist, was not successfull.
CmsDbException	Signals that a low-level exception occurred when accessing the OpenCms database.
CmsDbIoException	Signals that an IO exception occurred when reading from or writing to the OpenCms database.
CmsDbKeyException	Signals that a foreign key in the VFS STRUCTURE, RESOURCES or FILES database tables is either invalid or empty.
CmsDbSqlException	Used to signal sql related issues.
CmsVfsOnlineResourceAlreadyExistsException	Signals that an attempt to create a resource was not successfull since at the given location another online resource with a different structure id has been found.

程序包org.opencms.db的说明

Low-level database connection and access functionality.

You should usually not access the OpenCms database directly. To access the OpenCms VFS repository, obtain a CmsObject which will encapsulate the current users permissions.

从以下版本开始:

6.0.0