...
| Code Block | ||||
|---|---|---|---|---|
| ||||
EdmiError edmiRemoteGetAttrs(SdaiServerContext serverContextId,
SdaiInstance instance,
SdaiVersion version,
SdaiInteger numberAttr,
SdaiInvocationId *edmiInvocationId,
/* [SdaiAttr attributeId, SdaiPrimitiveType valueType, void *value] */
...);
|
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
...
, these attributes are identified by their attributeIds.
...
For each attribute value to read the following three arguments must be specified: <attributeID>, <valueType>, <value>
Arguments
...
| Type | Name | Comment | |
| SdaiServerContext | serverContextId | Context identification, from edmiDefineServerContext | |
SdaiInstance | instance | A numeric instanceID that uniquely identifies the instance of interrest interest 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 | SdaiAttr | attributeID | The numeric attributeId that uniquely identifies the attribute definition instance in the remote EDMdatabase . <valueType> : |
| SdaiPrimitiveType | valueType | The primitive type of the attribute. This type must be the same as the actual data type of the attribute value or any compatible data type. The primitive type sdaiSELECT can be used to get all data types. The primitive type sdaiADB can be used to get all data types except typed values. The primitive type sdaiINTEGER is compatible with sdaiREAL, and sdaiBOOLEAN is compatible with sdaiLOGICAL, hence conversion between these compatible data types will be performed automatically when required. | <value> : The |
| void | value | variable that will hold receive the data value from the actual attribute. |
...
Return Value
...
| Insert excerpt | ||||||
|---|---|---|---|---|---|---|
|
Options
...
Example
...
| Code Block | ||
|---|---|---|
| ||
#define S_NATTR 3 int i, j; EdmiError rstat; SdaiServerContext myContext; SdaiInteger index, nHits; SdaiAttr attrIds[S_NATTR]; |
...
SdaiQueryResult qexRes; |
...
SdaiString attrVals[S_NATTR]; |
...
/* Create Server Context */ |
...
rstat = edmiDefineServerContext("MyContext", |
...
"Johnny", "Supervisor", "cf37ftr", |
...
"TCP", "9090", "MyServerHost", |
...
NULL, NULL, NULL, NULL, NULL, &myContext); |
...
/* Get attribute ids of the Person entity */ |
...
rstat = edmiRemoteGetAttrDefinitionBN(myContext, "MySocialRelations", |
...
"Person", "FIRST_NAME", &attrIds[0], NULL); |
...
rstat = edmiRemoteGetAttrDefinitionBN(myContext, "MySocialRelations", |
...
"Person", "LAST_NAME", &attrIds[1], NULL); |
...
rstat = edmiRemoteGetAttrDefinitionBN(myContext, "MySocialRelations", |
...
"Person", "PHONE_NO", &attrIds[2], NULL); |
...
/* Select all person instances */ |
...
rstat = edmiRemoteSelectInstances(myContext, "MyRepository", |
...
"MySocialRelations", "Person", |
...
NULL, ONLY_INSTANCE_IDS, NULL, NULL, NULL, |
...
&index, &nHits, &qexRes, NULL, NULL, NULL, NULL); |
...
/* Get their names and phone numbers */ |
...
for (i=0;i<nHits;i++) { |
...
rstat = edmiRemoteGetAttrs(myContext, |
...
qexRes->instanceIds[i], 0, S_NATTR, NULL, |
...
attrIds[0], sdaiSTRING, &attrVals[0], |
...
attrIds[1], sdaiSTRING, &attrVals[1], |
...
attrIds[2], sdaiSTRING, &attrVals[2]); |
...
printf("\n%s %s, Phone No. %s", |
...
attrVals[0], attrVals[1], attrVals[2]); |
...
for (j=0;j<=S_NATTR;j++) { |
...
edmiFree(attrVals[j]); |
...
} } edmiFreeQueryResult(qexRes); |
...
. . . |
See also
| Filter by label (Content by label) | ||||||
|---|---|---|---|---|---|---|
|