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com.vaadin.signals.operations.
Package com.vaadin.signals.operations

Class TransactionOperation<T>

java.lang.Object
com.vaadin.signals.operations.SignalOperation<Void>
com.vaadin.signals.operations.TransactionOperation<T>

Type Parameters:

T - the transaction return value type

public class TransactionOperation<T> extends SignalOperation<Void>

A signal operation representing a transaction and the return value from the transaction callback. The SignalOperation.result() for a transaction doesn't carry any value. Note that in the case of write-through transactions, the result will always be successful even if operations applied within the transaction were not successful.

  • Constructor Details

    • TransactionOperation

      public TransactionOperation(T returnValue)

      Creates a new transaction operation with the provided return value.

      Parameters:

      returnValue - the transaction callback return value

  • Method Details

    • returnValue

      public T returnValue()

      Gets the return value from the transaction callback. null is used as the return value when the the transaction callback is a Runnable.

      Returns:

      the operation callback return value

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