Determines if the configuration is valid.

A valid configuration is one that is ready to be used by the connector: it is complete (all the required properties have been given values) and the property values are well-formed (are in the expected range, have the expected format, etc.)

Implementations of this method should not connect to the resource in an attempt to validate the configuration. For example, implementations should not attempt to check that a host of the specified name exists by making a connection to it. Such checks can be performed in the implementation of the Test()()()() method.

Gets or sets the {@link ConnectorMessages message catalog} instance that allows the Connector to localize messages. The setter is called before any bean property setter, the [M:Validate] method or this property getter.