google::cloud::bigtable::AlwaysRetryMutationPolicy Class Reference

Implements a policy that retries all mutations. More...

#include <google/cloud/bigtable/idempotent_mutation_policy.h>

Public Member Functions
	AlwaysRetryMutationPolicy ()=default
std::unique_ptr< IdempotentMutationPolicy >	clone () const override
	Return a copy of the policy. More...
bool	is_idempotent (google::bigtable::v2::Mutation const &) override
	Return true if the mutation is idempotent. More...
bool	is_idempotent (google::bigtable::v2::CheckAndMutateRowRequest const &) override
	Return true if a conditional mutation is idempotent. More...

Detailed Description

Implements a policy that retries all mutations.

Notice that this will may result in non-idempotent mutations being resent to the server. Re-trying a SetCell() mutation where the server selects the timestamp can result in multiple copies of the data stored with different timestamps. Only use this policy if your application is prepared to handle such problems, for example, by only querying the last value and setting garbage collection policies to delete the old values.

Constructor & Destructor Documentation

AlwaysRetryMutationPolicy()

google::cloud::bigtable::AlwaysRetryMutationPolicy::AlwaysRetryMutationPolicy ( )

default

Member Function Documentation

clone()

std::unique_ptr< IdempotentMutationPolicy > google::cloud::bigtable::AlwaysRetryMutationPolicy::clone ( ) const

overridevirtual

Return a copy of the policy.

Implements google::cloud::bigtable::IdempotentMutationPolicy.

is_idempotent() [1/2]

bool google::cloud::bigtable::AlwaysRetryMutationPolicy::is_idempotent ( google::bigtable::v2::CheckAndMutateRowRequest const &  )

overridevirtual

Return true if a conditional mutation is idempotent.

Implements google::cloud::bigtable::IdempotentMutationPolicy.

is_idempotent() [2/2]

bool google::cloud::bigtable::AlwaysRetryMutationPolicy::is_idempotent ( google::bigtable::v2::Mutation const &  )

overridevirtual

Return true if the mutation is idempotent.

Implements google::cloud::bigtable::IdempotentMutationPolicy.