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FengPeng edited this page Feb 27, 2017 · 1 revision

Welcome to the ORMProvider wiki!

一.介绍

以注解及ORM的形式使Android content provider的操作更加简洁

二.基本使用

1、准备

首先，在工程级别的build.gradle中添加如下代码：


allprojects {
    repositories {
        ...
        maven { url 'https://jitpack.io' }
    }
}

然后，在目标模块下的build.gradle中添加如下代码：


dependencies {
    ...
    compile 'com.github.oxsource:ORMProvider:release-v1.0.0'
}

2.创建Provider


@DataBase(
        name = "tools.db",
        authority = "ox.source.provider.tools",
        tables = {HostTable.class},
        since = 1)
public class ToolsProvider extends SQLiteProvider {

    @Override
    protected Class extends SQLiteProvider> getBuildClass() {
        return getClass();
    }

    @Override
    protected void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

    }
}

创建好对象后需要在AndroidMainfest.xml中配置该provider，具体操作不赘述。

3、创建数据表


@Table(
        name = "hostTable",
        db = ToolsProvider.class,
        since = 1)
public class HostTable {
    @Column(name = "_id", type = Column.FieldType.INTEGER, primary = true, autoIncrement = true)
    private int id;

    @Column(name = "name", type = Column.FieldType.TEXT, notNull = true)
    private String name;

    @Column(name = "host", type = Column.FieldType.TEXT, notNull = true)
    private String host;

    public int getId() {
        return id;
    }

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

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getHost() {
        return host;
    }

    public void setHost(String host) {
        this.host = host;
    }

    @Override
    public String toString() {
        return "HostTable{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", host='" + host + '\'' +
                '}';
    }
}

4、数据操作


//query
    private void query() {
        SQLiteBuilder builder = new SQLiteBuilder(HostTable.class);
        SQLiteResolver resolver = new SQLiteResolver(getApplicationContext());
        List lists = resolver.query(HostTable.class, builder);
        for (HostTable e : lists) {
            ...
        }
    }

    //insert
    private void insert() {
        SQLiteResolver resolver = new SQLiteResolver(getApplicationContext());
        List lists = new ArrayList<>();
        HostTable table = new HostTable();
        table.setHost("https://www.baidu.com");
        table.setName("baidu");
        lists.add(table);
        int lines = resolver.insert(lists);
        if (lines > 0) {
            ...
        } else {
            ...
        }
    }

    //delete
    private void delete() {
        SQLiteBuilder builder = new SQLiteBuilder(HostTable.class);
        builder = builder.whereEquals("_id", "1");

        SQLiteResolver resolver = new SQLiteResolver(getApplicationContext());
        int lines = resolver.delete(HostTable.class, builder);
        if (lines > 0) {
            ...
        } else {
            ...
        }
    }

    //update
    private void update() {
        HostTable table = new HostTable();
        table.setName("update baidu");
        table.setHost("update https://www.baidu.com");

        SQLiteBuilder builder = new SQLiteBuilder(HostTable.class);
        builder.whereEquals("name", "baidu");

        SQLiteResolver resolver = new SQLiteResolver(getApplicationContext());
        int lines = resolver.update(table, builder);
        if (lines > 0) {
            ...
        } else {
            ...
        }
    }
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