自定义操作实施 Magnolia CMS

Question

我尝试在 Magnolia 中的页面应用程序的操作栏中实现自定义操作，类似于 Magnolia 6.0 custom action implementation。

我的实现是：

package ch.zzz.module.versioning;


import info.magnolia.ui.api.action.Action;
import info.magnolia.ui.api.action.ActionExecutionException;
import info.magnolia.ui.api.action.ConfiguredActionDefinition;

public class ZzzVersioning extends ConfiguredActionDefinition {

    public ZzzVersioning() {
        this.setImplementationClass(MyAction.class);
    }
}

class MyAction implements Action {



    @Override
    public void execute() throws ActionExecutionException {
        System.out.println("Hello! Executed MyAction");
    }
}

页面应用程序的操作配置使用 ch.zzz.module.versioning.ZzzVersioning 类，我在页面应用程序的操作栏中的项目下列出了该操作。

配置应用 模块>页面>应用程序>页面>子应用程序>浏览器>操作>MyActions -class=ch.zzz.module.versioning.ZzzVersioning

modules>pages>apps>pages>subApps>browser>actionbar>sections>pageActions>importExportActions>items-MyAction

单击操作栏中的 MyAction 时收到错误消息：Could not instantiate action class for action: MyAction.

这是我在日志中得到的：

2019-11-22 08:37:26,498 ERROR fo.magnolia.ui.contentapp.browser.BrowserPresenter: An error occurred while executing action [MyAction]
info.magnolia.ui.api.action.ActionExecutionException: Could not instantiate action class for action: MyAction

...然后在栈尾：

Caused by: info.magnolia.objectfactory.MgnlInstantiationException: No suitable constructor found for class [class ch.zzz.module.versioning.MyAction]
        at info.magnolia.objectfactory.ObjectManufacturer.newInstance(ObjectManufacturer.java:124) ~[magnolia-core-5.6.10.jar:?]
        at info.magnolia.objectfactory.guice.GuiceComponentProvider.newInstanceWithParameterResolvers(GuiceComponentProvider.java:132) ~[magnolia-core-5.6.10.jar:?]
        at info.magnolia.ui.framework.ioc.UiContextBoundComponentProvider.lambda$newInstanceWithParameterResolvers$4(UiContextBoundComponentProvider.java:113) ~[magnolia-ui-framework-5.6.10.jar:?]
        at info.magnolia.ui.framework.ioc.UiContextBoundComponentProvider.provideInCurrentScope(UiContextBoundComponentProvider.java:125) ~[magnolia-ui-framework-5.6.10.jar:?]
        at info.magnolia.ui.framework.ioc.UiContextBoundComponentProvider.newInstanceWithParameterResolvers(UiContextBoundComponentProvider.java:113) ~[magnolia-ui-framework-5.6.10.jar:?]
        at info.magnolia.ui.framework.ioc.UiContextBoundComponentProvider.newInstance(UiContextBoundComponentProvider.java:108) ~[magnolia-ui-framework-5.6.10.jar:?]
        at info.magnolia.ui.api.action.AbstractActionExecutor.createAction(AbstractActionExecutor.java:90) ~[magnolia-ui-api-5.6.10.jar:?]
        ... 129 more

有什么建议可以让它工作吗？

解决方案 感谢 ©Ducay035，我能够找到自定义版本控制类的解决方案：

package ch.zzz.module.versioning;

import info.magnolia.ui.api.action.CommandActionDefinition;

/**
 * Definition interface for the MyAction page action.
 */

public class UzhVersioning extends CommandActionDefinition {

    public UzhVersioning() {
        this.setImplementationClass(MyAction.class);
    }
}

和 MyAction 类：

public class MyAction extends AbstractMultiItemAction<Versioning>  {

    public MyAction(Versioning definition, JcrItemAdapter item, UiContext uiContext) {
        super(definition, item, uiContext);
        // TODO Auto-generated constructor stub
    }




    @Override
    public void execute() {
    ////your action code here
    }

Answer 1

您必须公开您的课程，以便 IOC 系统能够发现它。但是，如果您使用注入机制，则可以将构造函数设为私有。

干杯，

希望有帮助