# CosEventChannelAdmin_ProxyPullConsumer

### MODULE

CosEventChannelAdmin_ProxyPullConsumer

### MODULE SUMMARY

This module implements a ProxyPullConsumer interface which acts as a middleman between pull supplier and the event channel.

### DESCRIPTION

The ProxyPullConsumer interface defines the second step for connecting pull suppliers to the event channel. A proxy consumer is similar to a normal consumer, but includes an additional method for connecting a supplier to the proxy consumer.

To get access to all definitions, e.g., exceptions, include necessary `hrl` files by using:
`-include_lib("cosEvent/include/*.hrl").`

Any object that possesses an object reference that supports the ProxyPullConsumer interface can perform the following operations:

### EXPORTS

`connect_pull_supplier(Object, PullSupplier) -> Return`

Types:

`Object = #objref`
`PullSupplier = #objref of PullSupplier type`
`Return = ok | {'EXCEPTION', E}`
`E = #'CosEventChannelAdmin_AlreadyConnected'{} | #'CosEventChannelAdmin_TypeError'{}`

This operation connects PullSupplier object to the ProxyPullConsumer object. If a nil object reference is passed CORBA standard `BAD_PARAM` exception is raised. If the ProxyPullConsumer is already connected to a PullSupplier, then the `CosEventChannelAdmin_AlreadyConnected` exception is raised. Implementations of ProxyPullConsumers may require additional interface functionality; if these requirements are not met the `CosEventChannelAdmin_TypeError` exception will be raised.

`disconnect_pull_consumer(Object) -> Return`

Types:

`Object = #objref`
`Return = ok`

This operation disconnects proxy pull consumer from the event channel and sends a notification about the loss of the connection to the pull supplier attached to it.

### AUTHORS

support - support@erlang.ericsson.se

cosEvent 2.1
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