A MessageSocket that buffers incoming messages, removing and handling asynchronous back-end
messages. This splits the protocol into a [logically] synchronous message exchange plus a set of
out-of-band broadcast channels that can be observed or ignored at the user's discretion.
Attributes
- Companion:
- object
- Source:
- BufferedMessageSocket.scala
- Graph
- Supertypes
Members list
Value members
Abstract methods
Attributes
- Source:
- BufferedMessageSocket.scala
Stream of all channel notifications that this Session is subscribed to. Note that once
such a stream is started it is important to consume all notifications as quickly as possible to
avoid blocking message processing for other operations on the Session (although typically a
dedicated Session will receive channel notifications so this won't be an issue).
Stream of all channel notifications that this Session is subscribed to. Note that once
such a stream is started it is important to consume all notifications as quickly as possible to
avoid blocking message processing for other operations on the Session (although typically a
dedicated Session will receive channel notifications so this won't be an issue).
Attributes
- maxQueued
the maximum number of notifications to hold in a queue before [semantically] blocking message exchange on the controlling
Session.- See also:
- Source:
- BufferedMessageSocket.scala
Signal representing the current state of all Postgres configuration variables announced to this session. These are sent after authentication and are updated asynchronously if the runtime environment changes. The current keys are as follows (with example values), but these may change with future releases so you should be prepared to handle unexpected ones.
Signal representing the current state of all Postgres configuration variables announced to this session. These are sent after authentication and are updated asynchronously if the runtime environment changes. The current keys are as follows (with example values), but these may change with future releases so you should be prepared to handle unexpected ones.
Map(
"application_name" -> "",
"client_encoding" -> "UTF8",
"DateStyle" -> "ISO, MDY",
"integer_datetimes" -> "on", // cannot change after startup
"IntervalStyle" -> "postgres",
"is_superuser" -> "on",
"server_encoding" -> "UTF8", // cannot change after startup
"server_version" -> "9.5.3", // cannot change after startup
"session_authorization" -> "postgres",
"standard_conforming_strings" -> "on",
"TimeZone" -> "US/Pacific",
)
Attributes
- Source:
- BufferedMessageSocket.scala
Signal broadcasting the current TransactionStatus which is reported after each completed
message exchange. Note that this value may be stale in the case of a raised exception, which
should prompt the front end to send a Sync message but currently does not.
Signal broadcasting the current TransactionStatus which is reported after each completed
message exchange. Note that this value may be stale in the case of a raised exception, which
should prompt the front end to send a Sync message but currently does not.
Attributes
- Source:
- BufferedMessageSocket.scala
Inherited methods
Attributes
- Inherited from:
- MessageSocket
- Source:
- MessageSocket.scala
Attributes
- Inherited from:
- MessageSocket
- Source:
- MessageSocket.scala
Destructively read the last n messages from the circular buffer.
Destructively read the last n messages from the circular buffer.
Attributes
- Inherited from:
- MessageSocket
- Source:
- MessageSocket.scala
Receive the next BackendMessage, or raise an exception if EOF is reached before a complete
message arrives.
Receive the next BackendMessage, or raise an exception if EOF is reached before a complete
message arrives.
Attributes
- Inherited from:
- MessageSocket
- Source:
- MessageSocket.scala
Send the specified message.