org.teiid.script.io
Class ResultSetReader

java.lang.Object
  java.io.Reader
      org.teiid.script.io.StringLineReader
          org.teiid.script.io.ResultSetReader

All Implemented Interfaces:

java.io.Closeable, java.lang.Readable

public class ResultSetReader
extends StringLineReader

This object wraps/extends a SQL ResultSet object as Reader object. Once the ResultSet can read as reader then it can be persisted, printed or compared easily without lot of code hassle of walking it every time.

PS: remember this is a Reader not InputStream, so all the fields read going to be converted to strings before they returned.

Since:

4.3

Field Summary

Fields inherited from class java.io.Reader

lock

Constructor Summary

ResultSetReader(java.sql.ResultSet in)

ResultSetReader(java.sql.ResultSet in, java.lang.String delimiter)

Method Summary

void	close()
int	getRowCount()
protected java.lang.String	nextLine() Get the next line of results from the ResultSet.
static java.lang.String	prettyPrint(java.sql.SQLXML xml)
static java.lang.String	resultSetMetaDataToString(java.sql.ResultSetMetaData metadata, java.lang.String delimiter) Get the first line from the result set.

Methods inherited from class org.teiid.script.io.StringLineReader

read

Methods inherited from class java.io.Reader

mark, markSupported, read, read, read, ready, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

ResultSetReader

public ResultSetReader(java.sql.ResultSet in)

ResultSetReader

public ResultSetReader(java.sql.ResultSet in,
                       java.lang.String delimiter)

Method Detail

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Overrides:

close in class StringLineReader

Throws:

java.io.IOException

Since:

4.3

See Also:

Reader.close()

nextLine

protected java.lang.String nextLine()
                             throws java.io.IOException

Get the next line of results from the ResultSet. The first line will be the metadata of the resultset and then followed by the result rows. Each row will be returned as one line.

Specified by:

nextLine in class StringLineReader

Returns:

next result line from result set.

Throws:

java.io.IOException

getRowCount

public int getRowCount()

resultSetMetaDataToString

public static java.lang.String resultSetMetaDataToString(java.sql.ResultSetMetaData metadata,
                                                         java.lang.String delimiter)
                                                  throws java.sql.SQLException

Get the first line from the result set. This is the resultset metadata line where we gather the column names and their types.

Returns:

Throws:

java.sql.SQLException

prettyPrint

public static java.lang.String prettyPrint(java.sql.SQLXML xml)
                                    throws java.sql.SQLException

Throws:

java.sql.SQLException