Package com.wowza.wms.stats.database.file

Interface IStatsFileDatabaseLevel

public interface IStatsFileDatabaseLevel

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    deleteRows(int row)
    Deletes all rows equal to and greater than supplied row.
    boolean
    deleteRowsAll()
    Deletes all data in level.
    void
    dropIndexData()
    As time and records are read/written some storage is used to speed operation.
    boolean
    findTime(long time, com.wowza.wms.stats.database.file.StatsFileDatabaseTime timeResult)
    Find the closest row with a given time.
    int
    getBytesPerField()
    Get the number of bytes per-field
    int
    getFieldCount()
    Get the number of fields per-row.
    boolean
    getFirstTime(com.wowza.wms.stats.database.file.StatsFileDatabaseTime timeResult)
    Get the time of row 0
    int
    getFlags()
    Get flags
    boolean
    getLastTime(com.wowza.wms.stats.database.file.StatsFileDatabaseTime timeResult)
    Get the time of last row
    long
    getLastWriteTime()
    Get the time of the last row written.
    int
    getLevelIndex()
    Get level index
    int
    getRowCountCurrent()
    Get the current number of rows in the level
    int
    getRowCountMax()
    Get the maximum number of rows for this level
    int
    getRowStorageSize()
    Get the storage size in bytes for a single row of data.
    int
    getTableCount()
    Get the number of tables
    boolean
    getTime(int row, com.wowza.wms.stats.database.file.StatsFileDatabaseTime timeResult)
    Get time associdated with a given row.
    int
    getTimeIncrement()
    Get the time increment for this level (only informational)
    int
    getTimeIndexFactor()
    Not really used - may use in the future
    int
    getTimes(int row, int count, long[] time)
    Get time for a range or rows.
    int
    getVersion()
    Get version
    boolean
    readRows(int table, int row, int count, byte[] rowBytes, int offset)
    Read the data for a range of rows.
    void
    setBytesPerField(int bytesPerField)
    Set the number of bytes per-fied (only when creating empty database)
    void
    setFieldCount(int fieldCount)
    Set the number of fields per-row (only when creating empty database)
    void
    setRowCountMax(int rowCountMax)
    Get the max number of rows (only when creating empty database)
    void
    setTableCount(int tableCount)
    Set number of tables (only when creating empty database)
    void
    setTimeIncrement(int timeIncrement)
    Set the time increment for this level v
    void
    setTimeIndexFactor(int timeIndexFactor)
    Not really used - may use in the future
    boolean
    writeRow(long timecode, int[] fields)
    Write a row to the level.
    boolean
    writeRow(long timecode, int[][] fieldsArr)
    Write a row to the level.

  • Method Details

    • getLevelIndex

      int getLevelIndex()
      Get level index
      Returns:
      level index

    • dropIndexData

      void dropIndexData()
      As time and records are read/written some storage is used to speed operation. This will dump the storage. It will be re-created if needed by underlying APIs.

    • findTime

      boolean findTime(long time, com.wowza.wms.stats.database.file.StatsFileDatabaseTime timeResult)
      Find the closest row with a given time. If the time is greater then the last row false will be returned. If the level is empty false will be returned. It will find closets time not greater then the requested time.
      Parameters:
      time -
      timeResult -
      Returns:
      returns false if time is greater than last row in level or level is empty

    • getFirstTime

      boolean getFirstTime(com.wowza.wms.stats.database.file.StatsFileDatabaseTime timeResult)
      Get the time of row 0
      Parameters:
      timeResult -
      Returns:
      returns false if level is empty

    • getLastTime

      boolean getLastTime(com.wowza.wms.stats.database.file.StatsFileDatabaseTime timeResult)
      Get the time of last row
      Parameters:
      timeResult -
      Returns:
      returns false if level is empty

    • getTime

      boolean getTime(int row, com.wowza.wms.stats.database.file.StatsFileDatabaseTime timeResult)
      Get time associdated with a given row.
      Parameters:
      row -
      timeResult -
      Returns:
      returns false if row is greater then total row count or level is empty

    • getTimes

      int getTimes(int row, int count, long[] time)
      Get time for a range or rows. If count = -1 it will get times for all rows to end of table.
      Parameters:
      row -
      count -
      time -
      Returns:
      returns false if row+count is greater then total row count or level is empty

    • getLastWriteTime

      long getLastWriteTime()
      Get the time of the last row written. writeRow will fail if try to write row using timecode less than this value. If returns -1 means level is empty.
      Returns:
      time of the last row written (milliseconds)

    • deleteRowsAll

      boolean deleteRowsAll()
      Deletes all data in level.
      Returns:
      true, if rows deleted

    • deleteRows

      boolean deleteRows(int row)
      Deletes all rows equal to and greater than supplied row.
      Parameters:
      row -
      Returns:
      true, if rows deleted

    • getRowStorageSize

      int getRowStorageSize()
      Get the storage size in bytes for a single row of data.
      Returns:
      storage size in bytes

    • readRows

      boolean readRows(int table, int row, int count, byte[] rowBytes, int offset)
      Read the data for a range of rows. If count = -1 will read from row to the end of the level.
      Parameters:
      table -
      row -
      count -
      rowBytes -
      offset -
      Returns:
      true if successful

    • writeRow

      boolean writeRow(long timecode, int[] fields)
      Write a row to the level. This is for writing the level with only a single table's worth of data.
      Parameters:
      timecode -
      fields -
      Returns:
      true if successful

    • writeRow

      boolean writeRow(long timecode, int[][] fieldsArr)
      Write a row to the level. This is for writing to a level with more than one table (avg, min, max)
      Parameters:
      timecode -
      fieldsArr -
      Returns:
      true if successful

    • getRowCountMax

      int getRowCountMax()
      Get the maximum number of rows for this level
      Returns:
      maximum number of rows for this level

    • setRowCountMax

      void setRowCountMax(int rowCountMax)
      Get the max number of rows (only when creating empty database)
      Parameters:
      rowCountMax -

    • getRowCountCurrent

      int getRowCountCurrent()
      Get the current number of rows in the level
      Returns:
      current number of rows in the level

    • getFieldCount

      int getFieldCount()
      Get the number of fields per-row.
      Returns:
      number of fields per-row

    • setFieldCount

      void setFieldCount(int fieldCount)
      Set the number of fields per-row (only when creating empty database)
      Parameters:
      fieldCount -

    • getTableCount

      int getTableCount()
      Get the number of tables
      Returns:
      number of tables

    • setTableCount

      void setTableCount(int tableCount)
      Set number of tables (only when creating empty database)
      Parameters:
      tableCount -

    • getBytesPerField

      int getBytesPerField()
      Get the number of bytes per-field
      Returns:
      number of bytes per-field

    • setBytesPerField

      void setBytesPerField(int bytesPerField)
      Set the number of bytes per-fied (only when creating empty database)
      Parameters:
      bytesPerField -

    • getTimeIncrement

      int getTimeIncrement()
      Get the time increment for this level (only informational)
      Returns:
      time increment for this level

    • setTimeIncrement

      void setTimeIncrement(int timeIncrement)
      Set the time increment for this level v
      Parameters:
      timeIncrement -

    • getTimeIndexFactor

      int getTimeIndexFactor()
      Not really used - may use in the future
      Returns:
      not used

    • setTimeIndexFactor

      void setTimeIndexFactor(int timeIndexFactor)
      Not really used - may use in the future
      Parameters:
      timeIndexFactor -

    • getVersion

      int getVersion()
      Get version
      Returns:
      version

    • getFlags

      int getFlags()
      Get flags
      Returns:
      flags