首页 \ 问答 \ 持有实体nosql（hadoop / hbase / hive）(Persist entity nosql (hadoop/hbase/hive))

持有实体nosql（hadoop / hbase / hive）(Persist entity nosql (hadoop/hbase/hive))

 我是hadoop的新手，我想在我的情况下将实体持久化到一个nosql数据库是Hbase使用hiveQL！ 我做了与hadoop，hbase，hive相关的所有配置，并且一切正常使用shell现在我正在尝试实现一个允许我将实体持久化到hbase的类（CRUD操作）所以我该如何定义数据库模式，我可以使用哪个数据库驱动程序！ 如果有任何其他配置我应该加入我的程序！ 
 

 谢谢 

I'm new to hadoop and I want to persist an entity to a nosql database in my case is Hbase using hiveQL! I did all the configuration related to hadoop , hbase,hive and everything works fine using the shell Now I'm trying to implement a class that allows me to persist an entity to hbase (CRUD operations) So how can I define the database schema , which data base driver can I use! and if there is any other configuration should I put in my program!
 

Thanks

原文：https://stackoverflow.com/questions/27655716
更新时间：2022-04-30 18:04

最满意答案

 好的，这里是你的解决方案。 
 

 检查它，让我知道这是否工作... 
 

 TextArea.java 
 

public class TextArea extends android.support.v7.widget.AppCompatEditText {

    public static final int TYPEFACE_NORMAL = 0;
    public static final int TYPEFACE_BOLD = 1;
    public static final int TYPEFACE_ITALICS = 2;
    public static final int TYPEFACE_BOLD_ITALICS = 3;
    public static final int TYPEFACE_UNDERLINE = 4;
    public static boolean underline = false;

    private int currentTypeface;
    private int lastCursorPosition;
    private int tId;


    public TextArea(Context context) {
        super(context);
        lastCursorPosition = this.getSelectionStart();
    }

    public TextArea(Context context, AttributeSet attrs) {
        super(context, attrs);
    }


    public int gettId() {
        return tId;
    }

    public void settId(int tId) {
        this.tId = tId;
    }

    public void changeTypeface(int tfId) {
        currentTypeface = tfId;
        lastCursorPosition = this.getSelectionStart();
    }

    @Override
    protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) {
        Spannable str = this.getText();
        StyleSpan ss;
        UnderlineSpan tt = new UnderlineSpan();
        int endLength = text.toString().length();
        underline = false;

        Log.d("onTextChanged ", text.toString());

        switch (currentTypeface) {
            case TYPEFACE_NORMAL:
                ss = new StyleSpan(Typeface.NORMAL);
                break;
            case TYPEFACE_BOLD:
                ss = new StyleSpan(Typeface.BOLD);
                break;
            case TYPEFACE_ITALICS:
                ss = new StyleSpan(Typeface.ITALIC);
                break;
            case TYPEFACE_UNDERLINE:
                underline = true;
                ss = new StyleSpan(Typeface.NORMAL);
                tt = new UnderlineSpan();
                break;
            case TYPEFACE_BOLD_ITALICS:
                ss = new StyleSpan(Typeface.BOLD_ITALIC);
                break;
            default:
                ss = new StyleSpan(Typeface.NORMAL);
        }
        if (underline) {
//            str.setSpan(ss, lastCursorPosition, endLength, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
            str.setSpan(tt, lastCursorPosition, endLength, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        } else {
            // Runtime Error Fix!
            if (endLength > lastCursorPosition)
                str.setSpan(ss, lastCursorPosition, endLength, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        }
    }
}

 

 活动 
 

    bold = findViewById(R.id.bold);
    italic = findViewById(R.id.italic);
    boldItalic = findViewById(R.id.boldItalic);
    editText = findViewById(R.id.editText);
    normal = findViewById(R.id.normal);
    underline = findViewById(R.id.underline);
    typefaceStyle = TextArea.TYPEFACE_NORMAL;
    editText.changeTypeface(typefaceStyle);

    normal.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            typefaceStyle = TextArea.TYPEFACE_NORMAL;
            editText.changeTypeface(typefaceStyle);
        }
    });


    bold.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            typefaceStyle = TextArea.TYPEFACE_BOLD;
            editText.changeTypeface(typefaceStyle);
        }
    });

    italic.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            typefaceStyle = TextArea.TYPEFACE_ITALICS;
            editText.changeTypeface(typefaceStyle);
        }
    });

    boldItalic.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            typefaceStyle = TextArea.TYPEFACE_BOLD_ITALICS;
            editText.changeTypeface(typefaceStyle);

        }
    });


    underline.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            typefaceStyle = TextArea.TYPEFACE_UNDERLINE;
                editText.changeTypeface(typefaceStyle);

        }
    });


Ok buddy here is your solution.
 

Check it and let me know if this works ...
 

TextArea.java
 

public class TextArea extends android.support.v7.widget.AppCompatEditText {

    public static final int TYPEFACE_NORMAL = 0;
    public static final int TYPEFACE_BOLD = 1;
    public static final int TYPEFACE_ITALICS = 2;
    public static final int TYPEFACE_BOLD_ITALICS = 3;
    public static final int TYPEFACE_UNDERLINE = 4;
    public static boolean underline = false;

    private int currentTypeface;
    private int lastCursorPosition;
    private int tId;


    public TextArea(Context context) {
        super(context);
        lastCursorPosition = this.getSelectionStart();
    }

    public TextArea(Context context, AttributeSet attrs) {
        super(context, attrs);
    }


    public int gettId() {
        return tId;
    }

    public void settId(int tId) {
        this.tId = tId;
    }

    public void changeTypeface(int tfId) {
        currentTypeface = tfId;
        lastCursorPosition = this.getSelectionStart();
    }

    @Override
    protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) {
        Spannable str = this.getText();
        StyleSpan ss;
        UnderlineSpan tt = new UnderlineSpan();
        int endLength = text.toString().length();
        underline = false;

        Log.d("onTextChanged ", text.toString());

        switch (currentTypeface) {
            case TYPEFACE_NORMAL:
                ss = new StyleSpan(Typeface.NORMAL);
                break;
            case TYPEFACE_BOLD:
                ss = new StyleSpan(Typeface.BOLD);
                break;
            case TYPEFACE_ITALICS:
                ss = new StyleSpan(Typeface.ITALIC);
                break;
            case TYPEFACE_UNDERLINE:
                underline = true;
                ss = new StyleSpan(Typeface.NORMAL);
                tt = new UnderlineSpan();
                break;
            case TYPEFACE_BOLD_ITALICS:
                ss = new StyleSpan(Typeface.BOLD_ITALIC);
                break;
            default:
                ss = new StyleSpan(Typeface.NORMAL);
        }
        if (underline) {
//            str.setSpan(ss, lastCursorPosition, endLength, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
            str.setSpan(tt, lastCursorPosition, endLength, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        } else {
            // Runtime Error Fix!
            if (endLength > lastCursorPosition)
                str.setSpan(ss, lastCursorPosition, endLength, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        }
    }
}

 

Activity
 

    bold = findViewById(R.id.bold);
    italic = findViewById(R.id.italic);
    boldItalic = findViewById(R.id.boldItalic);
    editText = findViewById(R.id.editText);
    normal = findViewById(R.id.normal);
    underline = findViewById(R.id.underline);
    typefaceStyle = TextArea.TYPEFACE_NORMAL;
    editText.changeTypeface(typefaceStyle);

    normal.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            typefaceStyle = TextArea.TYPEFACE_NORMAL;
            editText.changeTypeface(typefaceStyle);
        }
    });


    bold.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            typefaceStyle = TextArea.TYPEFACE_BOLD;
            editText.changeTypeface(typefaceStyle);
        }
    });

    italic.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            typefaceStyle = TextArea.TYPEFACE_ITALICS;
            editText.changeTypeface(typefaceStyle);
        }
    });

    boldItalic.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            typefaceStyle = TextArea.TYPEFACE_BOLD_ITALICS;
            editText.changeTypeface(typefaceStyle);

        }
    });


    underline.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            typefaceStyle = TextArea.TYPEFACE_UNDERLINE;
                editText.changeTypeface(typefaceStyle);

        }
    });

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