io.seata.rm.datasource.sql.struct.cache

类 AbstractTableMetaCache

java.lang.Object

io.seata.rm.datasource.sql.struct.cache.AbstractTableMetaCache

所有已实现的接口:

TableMetaCache

直接已知子类:

MysqlTableMetaCache, OracleTableMetaCache, PostgresqlTableMetaCache

public abstract class AbstractTableMetaCache
extends Object
implements TableMetaCache

The type Table meta cache.

构造器概要

构造器

构造器和说明
AbstractTableMetaCache()

方法概要

限定符和类型	方法和说明
protected abstract TableMeta	fetchSchema(Connection connection, String tableName) get scheme from datasource and tableName
protected abstract String	getCacheKey(Connection connection, String tableName, String resourceId) generate cache key
TableMeta	getTableMeta(Connection connection, String tableName, String resourceId) Gets table meta.
void	refresh(Connection connection, String resourceId) Clear the table meta cache

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

AbstractTableMetaCache

public AbstractTableMetaCache()

方法详细资料

getTableMeta

public TableMeta getTableMeta(Connection connection,
                              String tableName,
                              String resourceId)

从接口复制的说明: TableMetaCache

Gets table meta.

指定者:

getTableMeta 在接口中 TableMetaCache

参数:

connection - the connection

tableName - the table name

resourceId - the resource id

返回:

the table meta

refresh

public void refresh(Connection connection,
                    String resourceId)

从接口复制的说明: TableMetaCache

Clear the table meta cache

指定者:

refresh 在接口中 TableMetaCache

参数:

connection - the connection

resourceId - the resource id

getCacheKey

protected abstract String getCacheKey(Connection connection,
                                      String tableName,
                                      String resourceId)

generate cache key

参数:

connection - the connection

tableName - the table name

resourceId - the resource id

返回:

cache key

fetchSchema

protected abstract TableMeta fetchSchema(Connection connection,
                                         String tableName)
                                  throws SQLException

get scheme from datasource and tableName

参数:

connection - the connection

tableName - the table name

返回:

table meta

抛出:

SQLException - the sql exception