1cosTransactions(3) Erlang Module Definition cosTransactions(3)
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6 cosTransactions - The main module of the cosTransactions application.
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9 To get access to the record definitions for the structures use:
10 -include_lib("cosTransactions/include/CosTransactions.hrl").
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12 This module contains the functions for starting and stopping the appli‐
13 cation. If the application is started using application:start(cosTrans‐
14 actions) the default configuration is used (see listing below). The
15 Factory reference is stored using the CosNaming Service under the id
16 "oe_cosTransactionsFac_IPNo".
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18 The following application configuration parameters exist:
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20 * maxRetries - default is 40 times, i.e., if a transaction partici‐
21 pant is unreachable the application will retry to contact it N
22 times. Reaching the maximum is considered to be a disaster.
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24 * comFailWait - default is 5000 milliseconds, i.e., before the appli‐
25 cation retries to contact unreachable transaction participants the
26 application wait Time milliseconds.
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29 start() -> Return
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31 Types:
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33 Return = ok | {error, Reason}
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35 This operation starts the cosTransactions application.
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37 stop() -> Return
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39 Types:
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41 Return = ok | {error, Reason}
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43 This operation stops the cosTransactions application.
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45 start_factory() -> TransactionFactory
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47 Types:
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49 TransactionFactory = #objref
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51 This operation creates a Transaction Factory. The Factory is
52 used to create a new top-level transaction using default options
53 (see listing below).
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55 start_factory(FacDef) -> TransactionFactory
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57 Types:
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59 FacDef = [Options], see Option listing below.
60 TransactionFactory = #objref
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62 This operation creates a Transaction Factory. The Factory is
63 used to create a new top-level transaction.
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65 The FacDef list must be a list of {Item, Value} tuples, where
66 the following values are allowed:
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68 * {hash_max, HashValue} - This value denotes the upper bound
69 of the hash value the Coordinator uses. Default is 1013.
70 HashValue must be an integer.
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72 * {allow_subtr, Boolean} - If set to true it is possible to
73 create subtransactions. Default is true.
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75 * {typecheck, Boolean} - If set to to true all transaction op‐
76 eration's arguments will be type-checked. Default is true.
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78 * {tty, Boolean} - Enables or disables error printouts to the
79 tty. If Flag is false, all text that the error logger would
80 have sent to the terminal is discarded. If Flag is true, er‐
81 ror messages are sent to the terminal screen.
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83 * {logfile, FileName} - This function makes it possible to
84 store all system information in FileName (string()). It can
85 be used in combination with the tty(false) item in to have a
86 silent system, where all system information are logged to a
87 file. As default no logfile is used.
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89 * {maxRetries, Integer} - default is 40 times, i.e., if a
90 transaction participant is unreachable the application will
91 retry to contact it N times. Reaching the maximum is consid‐
92 ered to be a disaster. This option overrides the application
93 configuration parameter.
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95 * {comFailWait, Integer} - default is 5000 milliseconds, i.e.,
96 before the application retries to contact unreachable trans‐
97 action participants the application wait Time milliseconds.
98 This option overrides the application configuration parame‐
99 ter.
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101 stop_factory(TransactionFactory) -> Reply
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103 Types:
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105 TransactionFactory = #objref
106 Reply = ok | {'EXCEPTION', E}
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108 This operation stop the target transaction factory.
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112Ericsson AB cosTransactions 5.1 cosTransactions(3)