import javax.resource.spi.ConnectionDefinition; //导入依赖的package包/类
private void processConnectionDescription(final ResourceAdapter resourceAdapter, final ConnectionDefinition connectionDefinitionAnnotation, final Class<?> cls) {
    // try and find the managed connection factory

    OutboundResourceAdapter outboundResourceAdapter = resourceAdapter.getOutboundResourceAdapter();
    if (outboundResourceAdapter == null) {
        outboundResourceAdapter = new OutboundResourceAdapter();
        resourceAdapter.setOutboundResourceAdapter(outboundResourceAdapter);
    }

    final List<org.apache.openejb.jee.ConnectionDefinition> connectionDefinition = outboundResourceAdapter.getConnectionDefinition();

    org.apache.openejb.jee.ConnectionDefinition definition = null;
    for (final org.apache.openejb.jee.ConnectionDefinition cd : connectionDefinition) {
        if (cd.getManagedConnectionFactoryClass().equals(cls.getName())) {
            definition = cd;
            break;
        }
    }

    if (definition == null) {
        definition = new org.apache.openejb.jee.ConnectionDefinition();
        outboundResourceAdapter.getConnectionDefinition().add(definition);
    }

    if (definition.getManagedConnectionFactoryClass() == null) {
        definition.setManagedConnectionFactoryClass(cls.getName());
    }

    if (definition.getConnectionInterface() == null) {
        definition.setConnectionInterface(connectionDefinitionAnnotation.connection().getName());
    }

    if (definition.getConnectionImplClass() == null) {
        definition.setConnectionImplClass(connectionDefinitionAnnotation.connectionImpl().getName());
    }

    if (definition.getConnectionFactoryInterface() == null) {
        definition.setConnectionFactoryInterface(connectionDefinitionAnnotation.connectionFactory().getName());
    }

    if (definition.getConnectionFactoryImplClass() == null) {
        definition.setConnectionFactoryImplClass(connectionDefinitionAnnotation.connectionFactoryImpl().getName());
    }
}