如何存储在ormlite数据库中的数组列表 [英] How to store the arraylist in ormlite database

问题描述

我试图类对象的数组列表保存到ormlite数据库，但它给了错误，java.lang.IllegalArgumentException：如果没有领域有DatabaseField标注类java.util.ArrayList

我的code是

  @DatabaseTable
公共类ManageModelDetails {

@DatabaseField（generatedId =真）
私人诠释身份证;

@DatabaseField（外资= TRUE，foreignAutoRefresh = TRUE）
私人的ArrayList＆LT; ModelDetails＆GT; listModelDetails;

// ===============================================
公共ManageModelDetails（）{
    超（）;
}

// ===============================================

公共ManageModelDetails（INT ID，ArrayList的＆LT; ModelDetails＆GT; listModelDetails）{
    超（）;
    this.id = ID;
    this.listModelDetails = listModelDetails;
}

// ===============================================

公共无效SETID（INT ID）{
    this.id = ID;
}

公众诠释的getId（）{
    返回ID;
}

公共无效setModelList（ArrayList中＆LT; ModelDetails＆GT; listModelDetails）{
    this.listModelDetails = listModelDetails;
}

公众的ArrayList＆LT; ModelDetails＆GT; getModelList（）{
    返回listModelDetails;
}

}
 

解决方案

我认为你需要使用外国集合。看看这里：

• 外国收藏
• <一个href="http://stackoverflow.com/questions/6272155/persisting-a-collection-class-with-ormlite-in-android">Another类似的问题

I am trying to save the arraylist of class objects into the ormlite database , but it is giving the error , java.lang.IllegalArgumentException: No fields have a DatabaseField annotation in class java.util.ArrayList

my code is

@DatabaseTable
public class ManageModelDetails {

@DatabaseField(generatedId = true)
private int id;

@DatabaseField(foreign = true, foreignAutoRefresh = true)
private ArrayList<ModelDetails> listModelDetails;

// ===============================================
public ManageModelDetails() {
    super();
}

// ===============================================

public ManageModelDetails(int id, ArrayList<ModelDetails> listModelDetails) {
    super();
    this.id = id;
    this.listModelDetails = listModelDetails;
}

// ===============================================

public void setId(int id) {
    this.id = id;
}

public int getId() {
    return id;
}

public void setModelList(ArrayList<ModelDetails> listModelDetails) {
    this.listModelDetails = listModelDetails;
}

public ArrayList<ModelDetails> getModelList() {
    return listModelDetails;
}

}

解决方案

I think you need to use Foreign Collections. Take a look here:

• Foreign Collections
• Another similar question

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