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Chapter 244. PostgresSQL Event Component


Available as of Camel version 2.15

This is a component for Apache Camel which allows for Producing/Consuming PostgreSQL events related to the LISTEN/NOTIFY commands added since PostgreSQL 8.3.

Maven users will need to add the following dependency to their pom.xml for this component:

<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-pgevent</artifactId>
    <version>x.x.x</version>
    <!-- use the same version as your Camel core version -->
</dependency>
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URI format

The pgevent component uses the following two styles of endpoint URI notation:

pgevent:datasource[?parameters]
pgevent://host:port/database/channel[?parameters]
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You can append query options to the URI in the following format, ?option=value&option=value&…​

244.1. Options

The PostgresSQL Event component has no options.

The PostgresSQL Event endpoint is configured using URI syntax:

pgevent:host:port/database/channel
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with the following path and query parameters:

244.1.1. Path Parameters (4 parameters):

Expand
NameDescriptionDefaultType

host

To connect using hostname and port to the database.

localhost

String

port

To connect using hostname and port to the database.

5432

Integer

database

Required The database name

 

String

channel

Required The channel name

 

String

244.1.2. Query Parameters (7 parameters):

Expand
NameDescriptionDefaultType

datasource (common)

To connect using the given javax.sql.DataSource instead of using hostname and port.

 

DataSource

bridgeErrorHandler (consumer)

Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.

false

boolean

exceptionHandler (consumer)

To let the consumer use a custom ExceptionHandler. Notice if the option bridgeErrorHandler is enabled then this options is not in use. By default the consumer will deal with exceptions, that will be logged at WARN or ERROR level and ignored.

 

ExceptionHandler

exchangePattern (consumer)

Sets the exchange pattern when the consumer creates an exchange.

 

ExchangePattern

synchronous (advanced)

Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported).

false

boolean

pass (security)

Password for login

 

String

user (security)

Username for login

postgres

String

244.2. See Also

  • Configuring Camel
  • Component
  • Endpoint
  • Getting Started
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