Key-Value Store

The key-value store represents the internal state of the network. It is used by applications to store data to and read from the ledger.

• Key-Value Store How-To
  • Map Naming
  • Transaction Semantics
  • Accessing Map content via a Handle
  • Read/Write safety
  • Removing a key
  • Global commit
  • Miscellaneous
    • foreach()
    • Applying and reverting writes
• Key-Value Serialisation
  • Custom key and value types
• Key-Value Store API
  • Map
    • Version
    • NoVersion
    • ccf::kv::TypedMap
    • Map
    • ccf::kv::TypedValue
    • Value
    • ccf::kv::TypedSet
    • Set
  • Transaction
    • ccf::kv::ReadOnlyTx
    • ro()
    • ro()
    • ccf::kv::Tx
    • rw()
    • rw()
    • wo()
    • wo()
  • Handles
    • ccf::kv::ReadableMapHandle
    • get_name_of_map()
    • get()
    • get_globally_committed()
    • has()
    • get_version_of_previous_write()
    • foreach()
    • foreach_key()
    • foreach_value()
    • size()
    • ccf::kv::WriteableMapHandle
    • put()
    • remove()
    • clear()
    • ccf::kv::MapHandle
    • ccf::kv::ReadableValueHandle
    • get()
    • get_globally_committed()
    • has()
    • get_version_of_previous_write()
    • ccf::kv::WriteableValueHandle
    • put()
    • clear()
    • ccf::kv::ValueHandle
    • ccf::kv::ReadableSetHandle
    • contains()
    • contains_globally_committed()
    • get_version_of_previous_write()
    • foreach()
    • size()
    • ccf::kv::WriteableSetHandle
    • insert()
    • remove()
    • clear()
    • ccf::kv::SetHandle
  • Serialisation
    • EntryType
    • WriteSet
    • Snapshot
    • WriteSetWithClaims
    • WriteSetWithCommitEvidence
    • WriteSetWithCommitEvidenceAndClaims
    • MAX