MDB_val class

@brief Generic structure used for passing keys and data in and out of the database.

Values returned from the database are valid only until a subsequent update operation, or the end of the transaction. Do not modify or free them, they commonly point into the database itself.

Key sizes must be between 1 and #mdb_env_get_maxkeysize() inclusive. The same applies to data sizes in databases with the #MDB_DUPSORT flag. Other data items can in theory be from 0 to 0xffffffff bytes long.

Inheritance

• Object
• Struct
• MDB_val

Implemented types

• NativeType

Available extensions

• StructAddress

Constructors

MDB_val()

Properties

address → Pointer<T>

Available on T, provided by the StructAddress extension

The memory address of the underlying data.

no setter

hashCode → int

The hash code for this object.

no setter, inherited

mv_data ↔ Pointer<Void>

< address of the data item

getter/setter pair

mv_size ↔ int

< size of the data item

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited