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@Retention(RUNTIME) @Target(TYPE) public @interface MetadataDefinition
Meta annotation for defining new types of event metadata.Example, a transaction event with two user-defined annotations, @Severity and @TransactionId
@MetadataDefinition @Label("Severity") @Description("Value between 0 and 100 that indicates severity. 100 is most severe.") @Retention(RetentionPolicy.RUNTIME) @Target({ ElementType.TYPE }) public @interface @Severity { int value() default 50; } @MetadataDefinition @Label("Transaction Id") @Relational @Retention(RetentionPolicy.RUNTIME) @Target({ ElementType.FIELD }) public @interface @Severity { } @Severity(80) @Label("Transaction Blocked"); class TransactionBlocked extends Event { @TransactionId @Label("Transaction"); long transactionId; @TransactionId @Label("Transaction Blocker"); long transactionId; }
- Since:
- 9