import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import android.app.Activity;
import android.content.ContentValues;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
public class Database{
SQLiteDatabase db;
String DB_NAME="test.db";
String root="data/data/com.example.test/";
String DB_FULL_PATH=root+"databases/"+DB_NAME;
int Rcount=0;
public void CreateDB(Activity a) {
this.db = a.openOrCreateDatabase(
DB_NAME
, SQLiteDatabase.CREATE_IF_NECESSARY
, null
);
db.setVersion(1);
db.setLocale(Locale.getDefault());
db.setLockingEnabled(true);
}
public void OpenDB(Activity a) {
this.db = SQLiteDatabase.openDatabase(DB_FULL_PATH, null,
SQLiteDatabase.OPEN_READWRITE);
}
public void CloseDB(Activity a) {
this.db.close();
}
public boolean checkDataBase() {
SQLiteDatabase checkDB = null;
try {
checkDB = SQLiteDatabase.openDatabase(DB_FULL_PATH, null,
SQLiteDatabase.OPEN_READONLY);
checkDB.close();
} catch (Exception e) {
// database doesn't exist yet.
}
return checkDB != null ? true : false;
}
public void CreateTable( String CREATE_TABLE){
db.execSQL(CREATE_TABLE);
}
//String s="CREATE TABLE user (ID INTEGER PRIMARY KEY, phone NUMERIC, Name TEXT)";
public void insertDB(ContentValues values,String table) {
//db.insert(table, null, values); // it will create new rows and wont merge if already exist. i.e. insert
db.replace(table, null, values); // it will merge data in existing rows or else creates new row .i.e insert or update
}
public Cursor resultDB(String query) {
//Vector vector = new Vector();
String res="";
Cursor cur = db.rawQuery(query,new String[]{});
Rcount=cur.getCount();
return cur;
}
public String[] getAllResultStr(String query,int pos)
{
Cursor cursor = db.rawQuery(query,new String[]{});
if(cursor.getCount() >0)
{
String[] str = new String[cursor.getCount()];
int i = 0;
while (cursor.moveToNext())
{
str[i] = cursor.getString(pos);
i++;
}
cursor.close();
return str;
}
else
{ cursor.close();
return new String[] {};
}
}
public List getAllResultList(String query,int pos)
{
Cursor cursor = db.rawQuery(query,new String[]{});
List list=new ArrayList(10);
if(cursor.getCount() >0)
while (cursor.moveToNext())
list.add( cursor.getString(pos)) ;
return list;
}
public int getRowCount() {
return Rcount;
}
public void updateDB(ContentValues values,String tbname,String whereClause,String [] whereArgs) {
db.update(tbname,values, whereClause, whereArgs);
}
public void deleteDB(String TABLE_NAME,String WHERE,String[] args) {
db.delete(TABLE_NAME,WHERE,args);
}
}
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