Class Policy.Builder (2.4.0)

A builder for Policy objects.

Adds one or more identities to the policy under the role specified.

Creates a Policy object.

Removes one or more identities from an existing binding. Does nothing if the binding associated with the provided role doesn't exist.

Removes the role (and all identities associated with that role) from the policy.

Replaces the builder's List of bindings with the given List of Bindings.

Replaces the builder's map of bindings with the given map of bindings.

Sets the policy's etag.

Etags are used for optimistic concurrency control as a way to help prevent simultaneous updates of a policy from overwriting each other. It is strongly suggested that systems make use of the etag in the read-modify-write cycle to perform policy updates in order to avoid race conditions. An etag is returned in the response to getIamPolicy, and systems are expected to put that etag in the request to setIamPolicy to ensure that their change will be applied to the same version of the policy. If no etag is provided in the call to setIamPolicy, then the existing policy is overwritten blindly.

Sets the version of the policy.