FieldPersistenceOptionsOrBuilder

Provided for backwards compatibility. Do not use.

Provided for backwards compatibility. Do not use.

This field should always be explicitly listed with a value, even if it is set to the default value. This function
is especially useful for enums with default values, when there is a desire to have consistent indexes.

This field should allow writes when the model that contains it is written, but then, henceforth, the model should
not allow this field to be mutated.

This field should not allow writes, but rather produce its value dynamically. Fields marked in this manner cannot
be set by external code at any point in time.

This item is a timestamp, and we would like it to be automatically set when the model is created. After that point,
we would like this field to be read-only.

This item is a timestamp, and we would like it to be automatically updated each time the model that contains it is
modified in underlying storage. The field should be read-only.

Summary for this field, which provides a narrative description. It should be suitable for use in external
circumstances, like documentation.

Summary for this field, which provides a narrative description. It should be suitable for use in external
circumstances, like documentation.

Field type, for special-case fields.

Field type, for special-case fields.

Describes the visibility level of a given field in a tree of fields. This value applies recursively under message
fields on which it is applied. Depending on the visibility level active when data is deserialized or serialized,
certain data may be withheld corresponding to the invoking user or system's access level.

Describes the visibility level of a given field in a tree of fields. This value applies recursively under message
fields on which it is applied. Depending on the visibility level active when data is deserialized or serialized,
certain data may be withheld corresponding to the invoking user or system's access level.