trait ActionNodeInfo extends AnyRef

Trait for extracting information from an abstract action node. Used for sharing the implementation of common computations over nodes and transactions.

External codebases use these utilities on transaction and node implementations that are not the one defined by ActionNode and hence the need for the indirection.

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AnyRef, Any
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Create, Exercise, Fetch, LookupByKey, GenActionNode, LeafOnlyActionNode, NodeCreate, NodeExercises, NodeFetch, NodeLookupByKey
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Abstract Value Members

  1. abstract def informeesOfNode: Set[Party]

    Compute the informees of a node based on the ledger model definition.

    Compute the informees of a node based on the ledger model definition.

    Refer to https://docs.daml.com/concepts/ledger-model/ledger-privacy.html#projections

  2. abstract def requiredAuthorizers: Set[Party]

    Required authorizers (see ledger model); UNSAFE TO USE on fetch nodes of transaction with versions < 5

    Required authorizers (see ledger model); UNSAFE TO USE on fetch nodes of transaction with versions < 5

    The ledger model defines the fetch node actingParties as the nodes' required authorizers. However, the our transaction data structure did not include the actingParties in versions < 5. The usage of this method must thus be restricted to: 1. settings where no fetch nodes appear (for example, the validate method of DAMLe, which uses it on root nodes, which are guaranteed never to contain a fetch node) 2. Daml ledger implementations that do not store or process any transactions with version < 5

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