Package org.h2.result

Class ResultRemote

  • All Implemented Interfaces:
    java.lang.AutoCloseable, ResultInterface
    public final class ResultRemote
extends FetchedResult
    The client side part of a result set that is kept on the server. In many cases, the complete data is kept on the client side, but for large results only a subset is in-memory.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void close()
      Close the result and delete any temporary files
      java.lang.String getAlias​(int i)
      Get the column alias name for the column.
      java.lang.String getColumnName​(int i)
      Get the column name.
      TypeInfo getColumnType​(int i)
      Get the column data type.
      int getFetchSize()
      Get the current fetch size for this result set.
      int getNullable​(int i)
      Check if this column is nullable.
      long getRowCount()
      Get the number of rows in this object.
      java.lang.String getSchemaName​(int i)
      Get the schema name for the column, if one exists.
      java.lang.String getTableName​(int i)
      Get the table name for the column, if one exists.
      int getVisibleColumnCount()
      Get the number of visible columns.
      boolean hasNext()
      Check if this result has more rows to fetch.
      boolean isClosed()
      Check if this result set is closed.
      boolean isIdentity​(int i)
      Check if this is an identity column.
      boolean isLazy()
      Check if this a lazy execution result.
      void reset()
      Go to the beginning of the result, that means before the first row.
      void setFetchSize​(int fetchSize)
      Set the fetch size for this result set.
      java.lang.String toString()  

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • ResultRemote

        public ResultRemote​(SessionRemote session,
                    Transfer transfer,
                    int id,
                    int columnCount,
                    int fetchSize)
             throws java.io.IOException
        Throws:
        java.io.IOException

    • Method Detail

      • isLazy

        public boolean isLazy()
        Description copied from interface: ResultInterface
        Check if this a lazy execution result.
        Returns:
        true if it is a lazy result

      • getAlias

        public java.lang.String getAlias​(int i)
        Description copied from interface: ResultInterface
        Get the column alias name for the column.
        Parameters:
        i - the column number (starting with 0)
        Returns:
        the alias name

      • getSchemaName

        public java.lang.String getSchemaName​(int i)
        Description copied from interface: ResultInterface
        Get the schema name for the column, if one exists.
        Parameters:
        i - the column number (starting with 0)
        Returns:
        the schema name or null

      • getTableName

        public java.lang.String getTableName​(int i)
        Description copied from interface: ResultInterface
        Get the table name for the column, if one exists.
        Parameters:
        i - the column number (starting with 0)
        Returns:
        the table name or null

      • getColumnName

        public java.lang.String getColumnName​(int i)
        Description copied from interface: ResultInterface
        Get the column name.
        Parameters:
        i - the column number (starting with 0)
        Returns:
        the column name

      • getColumnType

        public TypeInfo getColumnType​(int i)
        Description copied from interface: ResultInterface
        Get the column data type.
        Parameters:
        i - the column number (starting with 0)
        Returns:
        the column data type

      • isIdentity

        public boolean isIdentity​(int i)
        Description copied from interface: ResultInterface
        Check if this is an identity column.
        Parameters:
        i - the column number (starting with 0)
        Returns:
        true for identity columns

      • getNullable

        public int getNullable​(int i)
        Description copied from interface: ResultInterface
        Check if this column is nullable.
        Parameters:
        i - the column number (starting with 0)
        Returns:
        Column.NULLABLE_*

      • reset

        public void reset()
        Description copied from interface: ResultInterface
        Go to the beginning of the result, that means before the first row.

      • getVisibleColumnCount

        public int getVisibleColumnCount()
        Description copied from interface: ResultInterface
        Get the number of visible columns. More columns may exist internally for sorting or grouping.
        Returns:
        the number of columns

      • getRowCount

        public long getRowCount()
        Description copied from interface: ResultInterface
        Get the number of rows in this object.
        Returns:
        the number of rows

      • hasNext

        public boolean hasNext()
        Description copied from interface: ResultInterface
        Check if this result has more rows to fetch.
        Returns:
        true if it has

      • close

        public void close()
        Description copied from interface: ResultInterface
        Close the result and delete any temporary files

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object

      • getFetchSize

        public int getFetchSize()
        Description copied from interface: ResultInterface
        Get the current fetch size for this result set.
        Returns:
        the fetch size

      • setFetchSize

        public void setFetchSize​(int fetchSize)
        Description copied from interface: ResultInterface
        Set the fetch size for this result set.
        Parameters:
        fetchSize - the new fetch size

      • isClosed

        public boolean isClosed()
        Description copied from interface: ResultInterface
        Check if this result set is closed.
        Returns:
        true if it is