diff options
Diffstat (limited to 'cpp/include/qmf/Agent.h')
| -rw-r--r-- | cpp/include/qmf/Agent.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/cpp/include/qmf/Agent.h b/cpp/include/qmf/Agent.h index 8ddea0fae9..8d427ab2fb 100644 --- a/cpp/include/qmf/Agent.h +++ b/cpp/include/qmf/Agent.h @@ -65,10 +65,52 @@ namespace qmf { qpid::messaging::Duration timeout=qpid::messaging::Duration::MINUTE); QMF_EXTERN uint32_t callMethodAsync(const std::string&, const qpid::types::Variant::Map&, const DataAddr&); + /** + * Query the agent for a list of schema classes that it exposes. This operation comes in both + * synchronous (blocking) and asynchronous flavors. + * + * This method will typically be used after receiving an AGENT_SCHEMA_UPDATE event from the console session. + * It may also be used on a newly discovered agent to learn what schemata are exposed. + * + * querySchema returns a ConsoleEvent that contains a list of SchemaId objects exposed by the agent. + * This list is cached locally and can be locally queried using getPackage[Count] and getSchemaId[Count]. + */ + QMF_EXTERN ConsoleEvent querySchema(qpid::messaging::Duration timeout=qpid::messaging::Duration::MINUTE); + QMF_EXTERN uint32_t querySchemaAsync(); + + /** + * Get the list of schema packages exposed by the agent. + * + * getPackageCount returns the number of packages exposed. + * getPackage returns the name of the package by index (0..package-count) + * + * Note that both of these calls are synchronous and non-blocking. They only return locally cached data + * and will not send any messages to the remote agent. Use querySchema[Async] to get the latest schema + * information from the remote agent. + */ QMF_EXTERN uint32_t getPackageCount() const; QMF_EXTERN const std::string& getPackage(uint32_t) const; + + /** + * Get the list of schema identifiers for a particular package. + * + * getSchemaIdCount returns the number of IDs in the indicates package. + * getSchemaId returns the SchemaId by index (0..schema-id-count) + * + * Note that both of these calls are synchronous and non-blocking. They only return locally cached data + * and will not send any messages to the remote agent. Use querySchema[Async] to get the latest schema + * information from the remote agent. + */ QMF_EXTERN uint32_t getSchemaIdCount(const std::string&) const; QMF_EXTERN SchemaId getSchemaId(const std::string&, uint32_t) const; + + /** + * Get detailed schema information for a specified schema ID. + * + * This call will return cached information if it is available. If not, it will send a query message to the + * remote agent and block waiting for a response. The timeout argument specifies the maximum time to wait + * for a response from the agent. + */ QMF_EXTERN Schema getSchema(const SchemaId&, qpid::messaging::Duration timeout=qpid::messaging::Duration::MINUTE); |
