Package com.mysql.cj.protocol

Interface Resultset

All Superinterfaces:
ProtocolEntity
All Known Subinterfaces:
ResultSetInternalMethods
All Known Implementing Classes:
NativeResultset, ResultSetImpl, UpdatableResultSet
public interface Resultset
extends ProtocolEntity
Represents protocol specific result set, eg., for native protocol, a ProtocolText::Resultset or ProtocolBinary::Resultset entity. See: http://dev.mysql.com/doc/internals/en/com-query-response.html#packet-ProtocolText::Resultset http://dev.mysql.com/doc/internals/en/binary-protocol-resultset.html

  • Nested Class Summary

    Nested Classes 
    Modifier and Type Interface Description
    static class  Resultset.Concurrency  
    static class  Resultset.Type  

  • Method Summary

    Modifier and Type Method Description
    void clearNextResultset()
    Clears the reference to the next result set in a multi-result set "chain".
    ColumnDefinition getColumnDefinition()  
    Resultset getNextResultset()
    Returns the next ResultSet in a multi-resultset "chain", if any, null if none exists.
    int getResultId()
    The id (used when profiling) to identify us
    ResultsetRows getRows()  
    java.lang.String getServerInfo()
    Returns the server informational message returned from a DDL or DML statement (if any), or null if none.
    long getUpdateCount()
    Returns the update count for this result set (if one exists), otherwise -1.
    long getUpdateID()
    Returns the AUTO_INCREMENT value for the DDL/DML statement which created this result set.
    boolean hasRows()
    Does the result set contain rows, or is it the result of a DDL or DML statement?
    void initRowsWithMetadata()
    Set metadata of this Resultset to ResultsetRows it contains.
    void setColumnDefinition​(ColumnDefinition metadata)
    Sometimes the driver doesn't have metadata before consuming the result set rows (because it's cached), or need to coerce the metadata returned by queries into that required by the particular specification (eg metadata returned by metadata queries into that required by the JDBC specification).
    void setNextResultset​(Resultset nextResultset)  

  • Method Details

    • setColumnDefinition

      void setColumnDefinition​(ColumnDefinition metadata)
      Sometimes the driver doesn't have metadata before consuming the result set rows (because it's cached), or need to coerce the metadata returned by queries into that required by the particular specification (eg metadata returned by metadata queries into that required by the JDBC specification). So it can call this to set it after the fact.
      Parameters:
      metadata - field-level metadata for the result set

    • getColumnDefinition

      ColumnDefinition getColumnDefinition()

    • hasRows

      boolean hasRows()
      Does the result set contain rows, or is it the result of a DDL or DML statement?
      Returns:
      true if result set contains rows

    • getRows

      ResultsetRows getRows()

    • initRowsWithMetadata

      void initRowsWithMetadata()
      Set metadata of this Resultset to ResultsetRows it contains.

    • getResultId

      int getResultId()
      The id (used when profiling) to identify us
      Returns:
      result id

    • setNextResultset

      void setNextResultset​(Resultset nextResultset)
      Parameters:
      nextResultset - Sets the next result set in the result set chain for multiple result sets.

    • getNextResultset

      Resultset getNextResultset()
      Returns the next ResultSet in a multi-resultset "chain", if any, null if none exists.
      Returns:
      the next Resultset

    • clearNextResultset

      void clearNextResultset()
      Clears the reference to the next result set in a multi-result set "chain".

    • getUpdateCount

      long getUpdateCount()
      Returns the update count for this result set (if one exists), otherwise -1.
      Returns:
      return the update count for this result set (if one exists), otherwise -1.

    • getUpdateID

      long getUpdateID()
      Returns the AUTO_INCREMENT value for the DDL/DML statement which created this result set.
      Returns:
      the AUTO_INCREMENT value for the DDL/DML statement which created this result set.

    • getServerInfo

      java.lang.String getServerInfo()
      Returns the server informational message returned from a DDL or DML statement (if any), or null if none.
      Returns:
      the server informational message