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EdmiError edmiRemoteGetAttrsBN(SdaiServerContext serverContextId,
SdaiInstance instance,
SdaiVersion version,
SdaiInteger numberAttr,
SdaiInvocationId *edmiInvocationId,
/* [SdaiString attributeName, SdaiPrimitiveType valueType, void *value] */
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Returns the value of the one or more specified attributes of an application instance. The instance is specified by its numeric instanceID that uniquely identifies it in the remote EDMdatabase
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. The attributer are identified by their names.
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Arguments
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| Type | Name | Comment |
| SdaiServerContext | serverContextId | Context identification, from edmiDefineServerContext |
SdaiInstance | instance | A numeric instanceID that uniquely identifies the instance of interrest in the remote _EDMdatabase{_}.remote EDMdatabase |
SdaiVersion | version | The version of the edmModel to apply this function call on. The <version> parameter is a numeric sequence number counting from one by increments of one for each new model version that is created. A zero model version number means the current version. |
SdaiInteger | numberAttr | The number of attributes for which to to assign values. |
SdaiInvocationId | edmiInvocationId | Currently not used. |
value | For each attribute value to read the following three arguments must be specified:
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Return Value
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Options
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Example
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#define S_BATCHSIZE 10 int i; EdmiError rstat; SdaiServerContext myContext; SdaiInteger index, nHits, nTot; /* Create Server Context */ rstat = edmiDefineServerContext("MyContext", |
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"Johnny", "Supervisor", "cf37ftr", |
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"TCP", "9090", "MyServerHost", |
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NULL, NULL, NULL, NULL, NULL, &myContext); |
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/* Find carpenters among my friends |
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and their fathers. Read |
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them in batches of 10 */ nTot = 0; index = 0; nHits = S_BATCHSIZE; |
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while (nHits = S_BATCHSIZE) { |
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SdaiQueryResult _qexRes; |
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SdaiString _firstName, _lastName, _phoneNo; |
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rstat = edmiRemoteSelectInstances(myContext, "MyRepository", |
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"MySocialRelations", "MyFriends", |
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"(SELF.PROFESSION.NAME = 'Carpenter') OR \ |
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(FATHER.PROFESSION.NAME = 'Carpenter')", |
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ONLY_INSTANCE_IDS, NULL, NULL, NULL, |
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&index, &nHits, &_qexRes, NULL, NULL, NULL, NULL); |
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/* Get names and phone numbers */ |
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for (i=0;i<nHits;i++) { |
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rstat = edmiRemoteGetAttrsBN(myContext, |
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_qexRes->instanceIds[i], 0, 3, NULL, |
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"FIRST_NAME", sdaiSTRING, &_firstName, |
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"LAST_NAME", sdaiSTRING, &_lastName, |
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"PHONE_NO", sdaiSTRING, &_phoneNo); |
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printf("\n%s %s, Phone No. %s", _firstName, _lastName, _phoneNo); |
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} edmiFreeQueryResult(_qexRes); |
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nTot += nHits; |
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++index; |
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} printf ("\n%d carpenters found among my friends!"); |
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. . . |
See also
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