1cosEventApp(3) Erlang Module Definition cosEventApp(3)
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6 cosEventApp - The main module of the cosEvent application.
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9 To get access to the record definitions for the structures use:
10 -include_lib("cosEvent/include/*.hrl").
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12 This module contains the functions for starting and stopping the appli‐
13 cation.
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16 install() -> Return
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18 Types:
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20 Return = ok | {'EXCEPTION', E} | {'EXIT', R}
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22 This operation installs the cosEvent application.
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24 uninstall() -> Return
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26 Types:
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28 Return = ok | {'EXCEPTION', E} | {'EXIT', R}
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30 This operation uninstalls the cosEvent application.
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32 start() -> Return
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34 Types:
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36 Return = ok | {error, Reason}
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38 This operation starts the cosEvent application.
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40 stop() -> Return
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42 Types:
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44 Return = ok | {error, Reason}
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46 This operation stops the cosEvent application.
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48 start_channel() -> Channel
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50 Types:
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52 Channel = #objref
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54 This operation creates a new instance of a Event Channel using
55 the default settings.
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57 start_channel(Options) -> Channel
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59 Types:
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61 Options = [Option]
62 Option = {pull_interval, Seconds} | {typecheck, Boolean} |
63 {maxEvents, Integer} | {blocking, Boolean}
64 Channel = #objref
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66 This operation creates a new instance of a Event Channel
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68 * {pull_interval, Seconds} - determine how often Proxy Pull
69 Consumers will check for new events with the client applica‐
70 tion. The default value is 20 seconds.
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72 * {typecheck, Boolean} - if this option is set to true the
73 proxies will check if the supplied client object is of cor‐
74 rect type. The default value is false.
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76 * {maxEvents, Integer} - this option determine how many events
77 the ProxyPullSuppliers will store before discarding events.
78 If the limit is reached events will be discarded in any or‐
79 der. The default value is 300.
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81 * {blocking, Boolean} - this option determine the behavior of
82 the channel when handling events internally. If set to true
83 the risk of a single event supplier floods the system is re‐
84 duced, but the performance may also be reduced. The default
85 value is true.
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87 start_channel_link() -> Channel
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89 Types:
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91 Channel = #objref
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93 This operation creates a new instance of a Event Channel, which
94 is linked to the invoking process, using the default settings.
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96 start_channel_link(Options) -> Channel
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98 Types:
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100 Options = [Option]
101 Option = {pull_interval, Seconds} | {typecheck, Boolean} |
102 {maxEvents, Integer} | {blocking, Boolean}
103 Channel = #objref
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105 This operation creates a new instance of a Event Channel, which
106 is linked to the invoking process, with settings defined by the
107 given options. Allowed options are the same as for cosEven‐
108 tApp:start_channel/1.
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110 stop_channel(Channel) -> Reply
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112 Types:
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114 Channel = #objref
115 Reply = ok | {'EXCEPTION', E}
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117 This operation stop the target event channel.
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121Ericsson AB cosEvent 5.1 cosEventApp(3)