CODEWITHSUNDEEP
springjdbc
fwonce
fwonce

Reputation: 527

Why can't I give multiple names to Spring's jdbc:embedded-database tag?

In my project I use an HSQLDB instance to serve for unit tests, and I do this by conveniently declaring a <jdbc:embedded-database> tag as Spring's doc said here.

Now for some reason I'd like to give it multiple names: name="a,b,c", just like we usually do on normal Spring beans. However, I found the tag doesn't allow "name" attribute.

Maybe I can workaround this using aliases, but it seems ridiculous to me.

EDIT: I want to know why Spring doesn't provide "name" for many special tags such as <jdbc:embedded-database>, <util:list>, etc.

Upvotes: 0

Views: 59

Answers (1)

Francisco Spaeth
Francisco Spaeth

Reputation: 23893

Your idea is not a workaround and not ridiculous at all. In fact Spring parses the name of a bean definition separating it using comma as separator and create an alias internally for each "name".

If you open the source code of org.springframework.beans.factory.xml.AbstractBeanDefinitionParser.parse(Element, ParserContext), you will see this on line 69:

String[] aliases = new String[0];
String name = element.getAttribute(NAME_ATTRIBUTE);
if (StringUtils.hasLength(name)) {
    aliases = StringUtils.trimArrayElements(StringUtils.commaDelimitedListToStringArray(name));
}
BeanDefinitionHolder holder = new BeanDefinitionHolder(definition, id, aliases);

that is what you suggested from the beginning.

Upvotes: 1

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