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. The attributer are identified by their names.
Related function: edmiRemoteGetAttrs
Header:
#include "sdai.h"
Prototype:
EdmiError edmiRemoteGetAttrsBN(SdaiServerContext serverContextId,
SdaiInstance instance,
SdaiVersion version,
SdaiInteger numberAttr,
SdaiInvocationId *edmiInvocationId,
/* [SdaiString attributeName, SdaiPrimitiveType valueType, void *value] */
...);
Arguments:
serverContextId |
Context identification, from edmiDefineServerContext |
instance |
A numeric instanceID that uniquely identifies the instance of interrest in the remote _EDMdatabase{_}. |
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. |
numberAttr |
The number of attributes for which to to assign values. |
edmiInvocationId |
Currently not used. |
value |
For each attribute value to read the following three arguments must be specified:
|
Returns:
A completion code of datatype EdmiError is the returned function value. The completion code has the following values:
Completion code = 0 : Operation successfully performed.
Completion code != 0: Error in operation. Completion code is an _EDMinterface_ error code. Use edmiGetErrorText to get the error text corresponding to the error code.
Example:
#define S_BATCHSIZE 10
int i;
EdmiError rstat;
SdaiServerContext myContext;
SdaiInteger index, nHits, nTot;
/* Create Server Context */
rstat = edmiDefineServerContext("MyContext",
"Johnny", "Supervisor", "cf37ftr",
"TCP", "9090", "MyServerHost",
NULL, NULL, NULL, NULL, NULL, &myContext);
/* Find carpenters among my friends
and their fathers. Read them in
batches of 10 */
nTot = 0;
index = 0;
nHits = S_BATCHSIZE;
while (nHits = S_BATCHSIZE) {
SdaiQueryResult _qexRes;
SdaiString _firstName, _lastName, _phoneNo;
rstat = edmiRemoteSelectInstances(myContext, "MyRepository",
"MySocialRelations", "MyFriends",
"(SELF.PROFESSION.NAME = 'Carpenter') OR \
(FATHER.PROFESSION.NAME = 'Carpenter')",
ONLY_INSTANCE_IDS, NULL, NULL, NULL,
&index, &nHits, &_qexRes, NULL, NULL, NULL, NULL);
/* Get names and phone numbers */
for (i=0;i<nHits;i++) {
rstat = edmiRemoteGetAttrsBN(myContext,
_qexRes->instanceIds[i], 0, 3, NULL,
"FIRST_NAME", sdaiSTRING, &_firstName,
"LAST_NAME", sdaiSTRING, &_lastName,
"PHONE_NO", sdaiSTRING, &_phoneNo);
printf("\n%s %s, Phone No. %s", _firstName, _lastName, _phoneNo);
}
edmiFreeQueryResult(_qexRes);
nTot += nHits;
++index;
}
printf ("\n%d carpenters found among my friends!");
. . .