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c

org.apache.spark.sql.jdbc

JdbcConnectionProvider

abstract class JdbcConnectionProvider extends AnyRef

::DeveloperApi:: Connection provider which opens connection toward various databases (database specific instance needed). If any authentication required then it's the provider's responsibility to set all the parameters. Important to mention connection providers within a JVM used from multiple threads so adding internal state is not advised. If any state added then it must be synchronized properly.

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@DeveloperApi() @Unstable()
Since

3.1.0

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Instance Constructors

  1. new JdbcConnectionProvider()

Abstract Value Members

  1. abstract def canHandle(driver: Driver, options: Map[String, String]): Boolean

    Checks if this connection provider instance can handle the connection initiated by the driver.

    Checks if this connection provider instance can handle the connection initiated by the driver. There must be exactly one active connection provider which can handle the connection for a specific driver. If this requirement doesn't met then IllegalArgumentException will be thrown by the provider framework.

    driver

    Java driver which initiates the connection

    options

    Driver options which initiates the connection

    returns

    True if the connection provider can handle the driver with the given options.

  2. abstract def getConnection(driver: Driver, options: Map[String, String]): Connection

    Opens connection to the database.

    Opens connection to the database. Since global JVM security configuration change may be needed this API is called synchronized by SecurityConfigurationLock to avoid race when modifiesSecurityContext returns true for the given driver with the given options.

    driver

    Java driver which initiates the connection

    options

    Driver options which initiates the connection

    returns

    a Connection object that represents a connection to the URL

  3. abstract def modifiesSecurityContext(driver: Driver, options: Map[String, String]): Boolean

    Checks if this connection provider instance needs to modify global security configuration to handle authentication and thus should synchronize access to the security configuration while the given driver is initiating a connection with the given options.

    Checks if this connection provider instance needs to modify global security configuration to handle authentication and thus should synchronize access to the security configuration while the given driver is initiating a connection with the given options.

    driver

    Java driver which initiates the connection

    options

    Driver options which initiates the connection

    returns

    True if the connection provider will need to modify the security configuration when initiating a connection with the given driver with the given options.

    Since

    3.1.3

  4. abstract val name: String

    Name of the service to provide JDBC connections.

    Name of the service to provide JDBC connections. This name should be unique. Spark will internally use this name to differentiate JDBC connection providers.

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