如何在 Groovy spring DSL 中定义原型作用域 bean

Question

在 grails 中，使用 spring groovy DSL

在 resources.groovy 中定义 spring bean

beans = {
    myBean(MyBeanImpl) {
        someProperty = 42
        otherProperty = "blue"
        bookService = ref("bookService")
    }
}

如何使用此 DSL 定义原型作用域 bean？我在 documentation

中找不到任何相关内容

Answer 1

这应该有效：

beans = {
    myBean(MyBeanImpl) { bean ->
        bean.scope = 'prototype'
        someProperty = 42
        otherProperty = "blue"
        bookService = ref("bookService")
    }
}

Answer 2

我同意 Jeff Scott Brown 的观点。

你怎么知道它不起作用？我们正在使用 Grails 2.3.9。

我的 resources.groovy 里有这个：

httpBuilderPool(HTTPBuilder) { bean ->
    bean.scope = 'prototype'    // A new service is created every time it is injected into another class
    client = ref('httpClientPool')
}

...

这在 Spock 集成测试中：

import grails.test.spock.IntegrationSpec
import org.apache.http.impl.client.CloseableHttpClient
import org.apache.log4j.Logger

class JukinHttpBuilderSpec extends IntegrationSpec {

    private final Logger log = Logger.getLogger(getClass())

    def httpBuilderPool
    def grailsApplication

    void "test jukinHttpBuilder instantiates"() {
        expect:
        httpBuilderPool
        httpBuilderPool.client instanceof CloseableHttpClient
    }

    void "test httpBuilderPool is prototype instaance"() {
        when: 'we call getBean on the application context'
        def someInstanceIds = (1..5).collect { grailsApplication.mainContext.getBean('httpBuilderPool').toString() }.toSet()
        log.info someInstanceIds.toString()

        then: 'we should get a new instance every access'
        someInstanceIds.size() == 5
    }

    void "test injected httpBuilderPool is prototype instance"() {
        when: 'we access the injeted httpBuilderPool'
        def someInstanceIds = (1..5).collect { httpBuilderPool.toString() }.toSet()
        log.info someInstanceIds.toString()

        then: 'it uses the same instance every time'
        someInstanceIds.size() == 1
    }
}

这表明它在 2.3.9 中有效。

如何在 Groovy spring DSL 中定义原型作用域 bean

How to define a prototype scoped bean in Groovy spring DSL

spring

grails-3.0