[英]Deltaspike TransactionStrategy Alternative Ambiguous dependencies
我在apache-deltaspike.properties中定義TransactionStrategy ,使用 Global Alternatives 配置:
globalAlternatives.org.apache.deltaspike.jpa.spi.transaction.TransactionStrategy=org.apache.deltaspike.jpa.impl.transaction.ResourceLocalTransactionStrategy
我的beans.xml只有deltaspike-data模塊攔截器:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
version="1.1" bean-discovery-mode="all">
<interceptors>
<class>org.apache.deltaspike.jpa.impl.transaction.TransactionalInterceptor</class>
</interceptors>
</beans>
但是我被下面的異常擊中了,這對我來說沒有任何意義:
WELD-001409: Ambiguous dependencies for type TransactionStrategy with qualifiers @Default
at injection point [UnbackedAnnotatedField] @Inject private org.apache.deltaspike.jpa.impl.transaction.TransactionalInterceptor.transactionStrategy
at org.apache.deltaspike.jpa.impl.transaction.TransactionalInterceptor.transactionStrategy(TransactionalInterceptor.java:0)
Possible dependencies:
- Managed Bean [class org.apache.deltaspike.jpa.impl.transaction.BeanManagedUserTransactionStrategy] with qualifiers [@Any @Default],
- Managed Bean [class org.apache.deltaspike.jpa.impl.transaction.ResourceLocalTransactionStrategy] with qualifiers [@Any @Default]
顯然,默認情況下會激活BeanManagedUserTransactionStrategy替代方案。 因為當我刪除全局替代定義時,我可以看到deltaspike-data模塊使用BeanManagedUserTransactionStrategy 。
關於如何繞過它的任何想法? 我需要使用ResourceLocalTransactionStrategy 。
我正在使用一種解決方法:從 bean 掃描中排除BeanManagedUserTransactionStrategy 。
我在beans.xml中使用WELD特定的 XML 模式執行此操作:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:weld="http://jboss.org/schema/weld/beans">
<weld:scan>
<weld:exclude name="org.apache.deltaspike.jpa.impl.transaction.BeanManagedUserTransactionStrategy"/>
</weld:scan>
<interceptors>
<class>org.apache.deltaspike.jpa.impl.transaction.TransactionalInterceptor</class>
</interceptors>
</beans>
通過這樣做,我放棄了可移植性,這意味着這只適用於WELD 。
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