Struct dpiAppContext 

#[repr(C)]
pub struct dpiAppContext {
    pub namespaceName: *const c_char,
    pub namespaceNameLength: u32,
    pub name: *const c_char,
    pub nameLength: u32,
    pub value: *const c_char,
    pub valueLength: u32,
}

This structure is used for passing application context to the database during the process of creating standalone connections. These values are ignored when acquiring a connection from a session pool or when using DRCP (Database Resident Connection Pooling). All values must be set to valid values prior to being used in the dpiConnCreateParams structure and must remain valid until the execution of dpiConn_create() completes. Values set using this structure are available in logon triggers by using the sys_context() SQL function.

Fields

namespaceName: *const c_char

Specifies the value of the “namespace” parameter to sys_context(). It is expected to be a byte string in the encoding specified in the dpiConnCreateParams structure and must not be NULL.

namespaceNameLength: u32

Specifies the length of the [dpiAppContext.namespaceName] member, in bytes.

name: *const c_char

Specifies the value of the “parameter” parameter to sys_context(). It is expected to be a byte string in the encoding specified in the dpiConnCreateParams structure and must not be NULL.

nameLength: u32

Specifies the length of the [dpiAppContext.name] member, in bytes.

value: *const c_char

Specifies the value that will be returned from sys_context(). It is expected to be a byte string in the encoding specified in the dpiConnCreateParams structure and must not be NULL.

valueLength: u32

Specifies the length of the [dpiAppContext.value] member, in bytes.

Trait Implementations

impl Clone for dpiAppContext

fn clone(&self) -> dpiAppContext

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for dpiAppContext

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for dpiAppContext

fn default() -> Self

Returns the “default value” for a type.

impl Copy for dpiAppContext