hazelcast::client::transaction_options Class Reference

Contains the configuration for a Hazelcast transaction. More...

#include <transaction_options.h>

Public Types
enum class	transaction_type { TWO_PHASE = 1 , LOCAL = 2 }
	Transaction type.

Public Member Functions
	transaction_options ()
	Creates a new default configured TransactionsOptions. More...
transaction_type	get_transaction_type () const
transaction_options &	set_transaction_type (transaction_type transaction_type)
	Sets the TransactionType. More...
std::chrono::milliseconds	get_timeout () const
transaction_options &	set_timeout (std::chrono::milliseconds duration)
	The timeout determines the maximum lifespan of a transaction. More...
int	get_durability () const
transaction_options &	set_durability (int num_machines)
	Sets the transaction durability. More...

Detailed Description

Contains the configuration for a Hazelcast transaction.

Definition at line 31 of file transaction_options.h.

Constructor & Destructor Documentation

transaction_options()

hazelcast::client::transaction_options::transaction_options

(

)

Creates a new default configured TransactionsOptions.

It will be configured with a timeout of 2 minutes, durability of 1 and a TransactionType.TWO_PHASE.

Definition at line 747 of file transactions.cpp.

  : timeout_(std::chrono::minutes(2))
  , durability_(1)
  , transaction_type_(transaction_type::TWO_PHASE)
{}

Member Function Documentation

get_durability()

int hazelcast::client::transaction_options::get_durability

(

)

const

Returns

the transaction durability.

See also

#setDurability(int)

Definition at line 784 of file transactions.cpp.

{
    return durability_;
}

get_timeout()

std::chrono::milliseconds hazelcast::client::transaction_options::get_timeout

(

)

const

Returns

the timeout

Definition at line 767 of file transactions.cpp.

{
    return timeout_;
}

get_transaction_type()

transaction_options::transaction_type hazelcast::client::transaction_options::get_transaction_type

(

)

const

Returns

the TransactionType.

Definition at line 754 of file transactions.cpp.

{
    return transaction_type_;
}

set_durability()

transaction_options & hazelcast::client::transaction_options::set_durability

(

int

num_machines

)

Sets the transaction durability.

The durability is the number of machines that can take over if a member fails during a transaction commit or rollback. This value only has meaning when TransactionType::TWO_PHASE is selected.

Parameters

durability

the durability

Returns

the updated TransactionOptions.

Exceptions

illegal_argument

if durability smaller than 0.

Definition at line 790 of file transactions.cpp.

{
    if (num_machines < 0) {
        BOOST_THROW_EXCEPTION(
          exception::illegal_state("TransactionOptions::setDurability",
                                   "Durability cannot be negative!"));
    }
    this->durability_ = num_machines;
    return *this;
}

set_timeout()

transaction_options & hazelcast::client::transaction_options::set_timeout

(

std::chrono::milliseconds

duration

)

The timeout determines the maximum lifespan of a transaction.

So if a transaction is configured with a timeout of 2 minutes, then it will automatically rollback if it hasn't committed yet.

Parameters

timeoutInSeconds

the timeout value.

Returns

the updated TransactionOptions

Exceptions

illegal_argument

if timeout smaller or equal than 0, or timeUnit is null.

See also

#getTimeout()

Definition at line 773 of file transactions.cpp.

{
    if (duration.count() <= 0) {
        BOOST_THROW_EXCEPTION(exception::illegal_state(
          "TransactionOptions::setTimeout", "Timeout must be positive!"));
    }
    timeout_ = duration;
    return *this;
}

set_transaction_type()

transaction_options & hazelcast::client::transaction_options::set_transaction_type

(

transaction_type

transaction_type

)

Sets the TransactionType.

A local transaction is less safe than a two phase transaction; when a member fails during the commit of a local transaction, it could be that some of the changes are committed, while others are not and this can leave your system in an inconsistent state.

Parameters

transactionType

the new TransactionType.

Returns

the updated TransactionOptions.

See also

#getTransactionType()

#setDurability(int)

Definition at line 760 of file transactions.cpp.

{
    transaction_type_ = type;
    return *this;
}

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The documentation for this class was generated from the following files:

• hazelcast/include/hazelcast/client/transaction_options.h
• hazelcast/src/hazelcast/client/transactions.cpp