io.flamingock.internal.core.external.targets.operations

Interface TargetSystemOps

All Superinterfaces:

io.flamingock.api.external.ExternalSystem, io.flamingock.api.external.TargetSystem

All Known Subinterfaces:

TransactionalTargetSystemOps

All Known Implementing Classes:

TargetSystemOpsImpl, TransactionalTargetSystemOpsImpl

public interface TargetSystemOps
extends io.flamingock.api.external.TargetSystem

Operational interface for target systems used by the execution engine.

This interface provides the minimal API required by Flamingock's execution engine to interact with target systems. It abstracts the implementation details and exposes only the operations needed for change execution.

Implementations typically wrap an AbstractTargetSystem instance and delegate operations to it.

Method Summary

Modifier and Type	Method and Description
<T> T	applyChange(java.util.function.Function<ExecutionRuntime,T> changeApplier, ExecutionRuntime executionRuntime) Applies a change operation to this target system.
io.flamingock.internal.common.core.targets.OperationType	getOperationType() Returns the type of operations supported by this target system.
<T> T	rollbackChange(java.util.function.Function<ExecutionRuntime,T> changeRollbacker, ExecutionRuntime executionRuntime) Rolls back (reverts) a previously applied change in this target system.

Methods inherited from interface io.flamingock.api.external.ExternalSystem

getId

Method Detail

getOperationType

io.flamingock.internal.common.core.targets.OperationType getOperationType()

Returns the type of operations supported by this target system.

Returns:

the operation type (e.g., NON_TX, TX_AUDIT_STORE_SYNC, TX_NON_SYNC)

applyChange

<T> T applyChange(java.util.function.Function<ExecutionRuntime,T> changeApplier,
                  ExecutionRuntime executionRuntime)

Applies a change operation to this target system.

This method coordinates the execution of a change by:

• Injecting session-scoped dependencies via the target system
• Executing the change function with the enhanced runtime

Type Parameters:

T - the return type of the change operation

Parameters:

changeApplier - the function that executes the actual change

executionRuntime - the runtime context for dependency resolution

Returns:

the result of the change operation

rollbackChange

<T> T rollbackChange(java.util.function.Function<ExecutionRuntime,T> changeRollbacker,
                     ExecutionRuntime executionRuntime)

Rolls back (reverts) a previously applied change in this target system.

This method coordinates the execution of a rollback by:

• Injecting session-scoped dependencies via the target system
• Executing the rollback function with the enhanced runtime

Implementations should strive for idempotency: invoking the rollback more than once should not produce side effects beyond the first successful revert.

Type Parameters:

T - the return type of the rollback operation

Parameters:

changeRollbacker - the function that executes the actual rollback

executionRuntime - the runtime context for dependency resolution

Returns:

the result of the rollback operation