PreparedRegistrations

Common functionality for recordkeeping of prepared statement registration and queueing for unregister.

Used by Connection and MySQLPool.

Templated on payload type. The payload should be an aggregate that includes the field: bool queuedForRelease = false;

Allowing access to directLookup from other parts of mysql-native IS intentional. PreparedRegistrations isn't intended as 100% encapsulation, it's mainly just to factor out common functionality needed by both Connection and MySQLPool.

package

struct PreparedRegistrations (

Payload

) if (

isPreparedRegistrationsPayload!Payload

) {

Payload[const(char[])] directLookup;

Nullable!Payload opIndex(const(char[]) sql);

void queueForRelease(const(char[]) sql);

void unqueueForRelease(const(char[]) sql);

void queueAllForRelease();

void clear();

Payload registerIfNeeded(const(char[]) sql, Payload delegate(const(char[])) doRegister);

}

Members

Functions

clear void clear(): Eliminate all records of both registered AND queued-for-release statements.
opIndex Nullable!Payload opIndex(const(char[]) sql): Returns null if not found
queueAllForRelease void queueAllForRelease(): Queues all prepared statements for release.
queueForRelease void queueForRelease(const(char[]) sql): Queue a prepared statement for release.
registerIfNeeded Payload registerIfNeeded(const(char[]) sql, Payload delegate(const(char[])) doRegister): If already registered, simply returns the cached Payload.
unqueueForRelease void unqueueForRelease(const(char[]) sql): Remove a statement from the queue to be released.

Variables

directLookup Payload[const(char[])] directLookup;: Lookup payload by sql string.

PreparedRegistrations

Members

Functions

Variables

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