com.sequoiadb.base

Class DataSource

java.lang.Object

com.sequoiadb.base.DataSource

public class DataSource
extends Object

Data source of SequoiaDB.

Method Summary

Modifier and Type	Method and Description
void	alterDataSource(BSONObject option) Modify the attributes of the current data source.
String	getName() Get the data source name.

Methods inherited from class java.lang.Object

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

Method Detail

alterDataSource

public void alterDataSource(BSONObject option)
                     throws BaseException

Modify the attributes of the current data source.

Parameters:

option - The options for setting data source attributes, as follows:

• Name(String) : New name of current data source
• Address(String) : The list of coord addresses for the target sequoiadb cluster, spearated by ','
• User(String) : User name of data source
• Password(String) : Data source password corresponding to User
  • AccessMode(String) : Configure access permissions for the data source, default is "ALL", the values are as follows:
    • "READ" : Allow read-only operation
    • "WRITE" : Allow write-only operation
    • "ALL" or "READ|WRITE" : Allow all operations
    • "NONE" : Neither read nor write operation is allowed
  • ErrorFilterMask(String) : Configure error filtering for data operations on data sources, default is "NONE", the values are as follows:
    • "READ" : Filter data read errors
    • "WRITE" : Filter data write errors
    • "ALL" or "READ|WRITE" : Filter both data read and write errors
    • "NONE" : Do not filter any errors
  • ErrorControlLevel(String) : Configure the error control level when performing unsupported data operations(such as DDL) on the mapping collection or collection space, default is "low", the values are as follows:
    • "high" : Report an error and output an error message
    • "low" : Ignore unsupported data operations and do not execute on data source
  • TransPropagateMode(String) : Configure the transaction propagation mode on data source, default is "never", the values are as follows:
    • "never": Transaction operation is forbidden. Report an error and output and error message.
    • "notsupport": Transaction operation is not supported on data source. The operation will be converted to non-transactional and send to data source.
  • InheritSessionAttr(Bool): Configure whether the session between the coordination node and the data source inherits properties of the local session, default is true. The supported attributes include PreferedInstance, PreferedInstanceMode, PreferedStrict, PreferedPeriod and Timeout.

Throws:

BaseException - If error happens.

getName

public String getName()

Get the data source name.

Returns:

The name of current data source