Package org.greenrobot.greendao

Class DbUtils

  • public class DbUtils
extends java.lang.Object
    Database utils, for example to execute SQL scripts

    • Constructor Summary

      Constructors 
      Constructor Description
      DbUtils()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static int copyAllBytes​(java.io.InputStream in, java.io.OutputStream out)
      Copies all available data from in to out without closing any stream.
      static int executeSqlScript​(android.content.Context context, Database db, java.lang.String assetFilename)
      Calls executeSqlScript(Context, Database, String, boolean) with transactional set to true.
      static int executeSqlScript​(android.content.Context context, Database db, java.lang.String assetFilename, boolean transactional)
      Executes the given SQL asset in the given database (SQL file should be UTF-8).
      static int executeSqlStatements​(Database db, java.lang.String[] statements)  
      static int executeSqlStatementsInTx​(Database db, java.lang.String[] statements)  
      static void logTableDump​(android.database.sqlite.SQLiteDatabase db, java.lang.String tablename)  
      static byte[] readAllBytes​(java.io.InputStream in)  
      static byte[] readAsset​(android.content.Context context, java.lang.String filename)  
      static void vacuum​(Database db)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • DbUtils

        public DbUtils()

    • Method Detail

      • vacuum

        public static void vacuum​(Database db)

      • executeSqlScript

        public static int executeSqlScript​(android.content.Context context,
                                   Database db,
                                   java.lang.String assetFilename)
                            throws java.io.IOException
        Calls executeSqlScript(Context, Database, String, boolean) with transactional set to true.
        Returns:
        number of statements executed.
        Throws:
        java.io.IOException

      • executeSqlScript

        public static int executeSqlScript​(android.content.Context context,
                                   Database db,
                                   java.lang.String assetFilename,
                                   boolean transactional)
                            throws java.io.IOException
        Executes the given SQL asset in the given database (SQL file should be UTF-8). The database file may contain multiple SQL statements. Statements are split using a simple regular expression (something like "semicolon before a line break"), not by analyzing the SQL syntax. This will work for many SQL files, but check yours.
        Returns:
        number of statements executed.
        Throws:
        java.io.IOException

      • executeSqlStatementsInTx

        public static int executeSqlStatementsInTx​(Database db,
                                           java.lang.String[] statements)

      • executeSqlStatements

        public static int executeSqlStatements​(Database db,
                                       java.lang.String[] statements)

      • copyAllBytes

        public static int copyAllBytes​(java.io.InputStream in,
                               java.io.OutputStream out)
                        throws java.io.IOException
        Copies all available data from in to out without closing any stream.
        Returns:
        number of bytes copied
        Throws:
        java.io.IOException

      • readAllBytes

        public static byte[] readAllBytes​(java.io.InputStream in)
                           throws java.io.IOException
        Throws:
        java.io.IOException

      • readAsset

        public static byte[] readAsset​(android.content.Context context,
                               java.lang.String filename)
                        throws java.io.IOException
        Throws:
        java.io.IOException

      • logTableDump

        public static void logTableDump​(android.database.sqlite.SQLiteDatabase db,
                                java.lang.String tablename)