Configures a custom TransactionPreApply listener class. TransactionPreApply listeners are executed before data is stored to the database. They are useful for checking data integrity or modifying data before it is stored.

A TransactionPreApply listener is called with the whole transaction while a PreApply listener is called for each element of the transaction.

The class definition overwrites the global definition in the Options section. That is, if a class has a TransactionPreApplyListener configured and there is a TransactionPreApplyListener configured in the Options section, then the definition in the class is used.

This example shows the configuration for a custom TransactionPreApply listener: