pentaho插件中未显示的传出字段

Question

我为 pentaho 创建了一个步骤插件，它提供了一些输出字段。它从前面的步骤中获取 2 个输入字段，添加一些元数据和输出字段。虽然输出被发送到下一步，但是当我右键单击并单击输出字段时，它只显示来自先前步骤的字段和值，而不是我创建的步骤插件。下面是 Meta 类的 Java 代码。

import org.eclipse.swt.widgets.Shell;

import org.pentaho.di.core.annotations.Step;

import org.pentaho.di.core.exception.KettleStepException;

import org.pentaho.di.core.row.RowMeta;

import org.pentaho.di.core.row.RowMetaInterface;

import org.pentaho.di.core.row.ValueMeta;

import org.pentaho.di.core.row.ValueMetaInterface;

import org.pentaho.di.core.variables.VariableSpace;

import org.pentaho.di.repository.Repository;

import org.pentaho.di.trans.Trans;

import org.pentaho.di.trans.TransMeta;

import org.pentaho.di.trans.step.*;

import org.pentaho.metastore.api.IMetaStore;

@Step(

        id = "FlatJson",

        image = "com/cxps/flatjson/steps/resources/demo.svg",

        i18nPackageName = "com.cxps.flatjson",

        name = "FlatJson.name",

        description = "FlatJson.description",

        categoryDescription = "i18n:org.pentaho.di.trans.step:BaseStep.Category.Transform"

)

public class FlatJsonMeta extends BaseStepMeta implements StepMetaInterface {

    public FlatJsonMeta() {

        super();

    }

    @Override

    public void setDefault() {

    }

    @Override

    public StepInterface getStep(StepMeta stepMeta, StepDataInterface sdi, int i, TransMeta transMeta, Trans trans) {

        return new FlatJson(stepMeta, sdi, i, transMeta, trans);

    }

    @Override

    public StepDataInterface getStepData() {

        return new FlatJsonData();

    }

    public StepDialogInterface getDialog(Shell shell, StepMetaInterface smi, TransMeta transMeta, String name) {

        return new FlatJsonDialog(shell, smi, transMeta, name);

    }

这是我的插件的 Spoon 视图，它不显示输出字段。