- Generated by
1.8.15
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BLPAPI C++
3.24.2
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#include <blpapi_constant.h>
Public Member Functions | |
| ConstantList (blpapi_ConstantList_t *handle) | |
| void | setUserData (void *userData) |
| Name | name () const |
| const char * | description () const |
| int | status () const |
| int | numConstants () const |
| int | datatype () const |
| Constant | getConstant (const Name &name) const |
| Constant | getConstant (const char *name) const |
| Constant | getConstantAt (size_t index) const |
| void * | userData () const |
| const blpapi_ConstantList_t * | impl () const |
Represents a list schema enumeration constants.
As well as the list of Constant objects, this class also provides access to the symbolic name, description, and status of the list as a whole, and provides a facility for associating arbitrary user data (in the form of a void*) with the list. All Constant objects in a ConstantList are of the same DataType.
ConstantList objects are read-only, with the exception of a single void* attribute for storing user data. ConstantList objects have reference semantics with respect to this user data field: calling c.setUserData(void*) modifies the user data associated with c, as well as that associated with all copies of c. As a result, functions which set or read this field are NOT per-object thread-safe. Clients must synchronize such operations across all copies of an object.
Application clients need never create fresh ConstantList objects directly; applications will typically work with copies of objects returned by other blpapi components.
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explicit |
| int datatype | ( | ) | const |
Return the data type used to represent the value of this constant as an integer specified by the blpapi_DataType_t enumeration defined in blpapi_types.
| const char * description | ( | ) | const |
Return a null-terminated string containing a human-readable description of this ConstantList. The returned pointer remains valid until this ConstantList is destroyed.
Return the Constant in this ConstantList identified by the specified name. If this ConstantList does not contain a Constant with the specified name then an exception is thrown.
| Constant getConstant | ( | const char * | name | ) | const |
Return the Constant in this ConstantList identified by the specified name. If this ConstantList does not contain a Constant with the specified name then an exception is thrown.
| Constant getConstantAt | ( | size_t | index | ) | const |
Return the Constant at the specified index in this ConstantList. If index is not in the range from 0 to numConstants() - 1 then an exception is thrown.
| const blpapi_ConstantList_t * impl | ( | ) | const |
Return the internal implementation.
| Name name | ( | ) | const |
Return the symbolic name of this ConstantList.
| int numConstants | ( | ) | const |
Return the number of Constant objects contained in this ConstantList.
| void setUserData | ( | void * | userData | ) |
Set the user data associated with this ConstantList – and all copies of this ConstantList – to the specified userData. Clients are responsible for synchronizing calls to this function, and to userData(), across all copies of this ConstantList object.
| int status | ( | ) | const |
Return the status, as a'SchemaStatus::Value', of this ConstantList.
| void * userData | ( | ) | const |
Return the user data associated with this ConstantList. If no user data has been associated with this ConstantList then return 0. Clients are responsible for synchronizing calls to this function with calls to setUserData(void*) made on not only this ConstantList, but also all copies of this ConstantList. Note that ConstantList objects have reference semantics: this function will reflect the last value set on any copy of this ConstantList.
1.8.15