uk.ac.ic.doc.automed.wrappers
Class AutoMedTuple

java.lang.Object
  uk.ac.ic.doc.automed.wrappers.AutoMedType
      uk.ac.ic.doc.automed.wrappers.AutoMedTuple

public class AutoMedTuple
extends AutoMedType

A structure to hold one tuple of data, to be used by AutoMedResult as the basis for storing sets, lists or bags of tuples.

Author:

Peter McBrien (pjm@doc.ic.ac.uk)

Field Summary

private AutoMedResult	amr
private AutoMedType[]	data
private int	rowNumber

Fields inherited from class uk.ac.ic.doc.automed.wrappers.AutoMedType

BOOLEAN, FLOAT, INTEGER, isNull, NULL_STR, STRING, TIME, TUPLE

Constructor Summary

AutoMedTuple(AutoMedResult amr, int i, int nc)
Create a new tuple belonging to row i and with nc attributes

Method Summary

double	doubleValue() Return the arity (size) of the tuple as a double.
boolean	equals(AutoMedType v) Test two AutoMedTypes for equality, performing conversions as appropriate.
AutoMedType	getAttribute(int no) Return a particular attribute from a tuple (counting from one)
int	getAttributeType(int attributeNumber)
AutoMedType[]	getData() Return all the attributes of this tuple as an array
int	getInt(int i) Return a particular attribute from a tuple (counting from one) as a 32 bit integer
java.lang.String	getString(int i) Return a particular attribute from a tuple (counting from one) as a String
int	getType() Return the Type (INTEGER, TUPLE, ...) of this AutoMedType
void	setAttribute(int no, AutoMedType v) Set the value of a certain field
int	size()
java.lang.String	toString() Produce a string representation of the AutoMedTuple
void	toString(java.lang.StringBuffer r) Produce a string representation of the result set, where {} indicates a set of values, and [] a list of values

Methods inherited from class uk.ac.ic.doc.automed.wrappers.AutoMedType

isLiteral, isNull, isNumeric

Methods inherited from class java.lang.Object

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

Field Detail

rowNumber

private int rowNumber

data

private AutoMedType[] data

amr

private AutoMedResult amr

Constructor Detail

AutoMedTuple

public AutoMedTuple(AutoMedResult amr,
                    int i,
                    int nc)

Create a new tuple belonging to row i and with nc attributes

Method Detail

setAttribute

public void setAttribute(int no,
                         AutoMedType v)
                  throws DataSourceException

Set the value of a certain field

Throws:

DataSourceException

size

public int size()

getData

public AutoMedType[] getData()

Return all the attributes of this tuple as an array

getAttribute

public AutoMedType getAttribute(int no)
                         throws DataSourceException

Return a particular attribute from a tuple (counting from one)

Throws:

DataSourceException

getString

public java.lang.String getString(int i)

Return a particular attribute from a tuple (counting from one) as a String

doubleValue

public double doubleValue()

Return the arity (size) of the tuple as a double.

Specified by:

doubleValue in class AutoMedType

getInt

public int getInt(int i)
           throws DataSourceException

Return a particular attribute from a tuple (counting from one) as a 32 bit integer

Throws:

DataSourceException

toString

public void toString(java.lang.StringBuffer r)

Produce a string representation of the result set, where {} indicates a set of values, and [] a list of values

toString

public java.lang.String toString()

Produce a string representation of the AutoMedTuple

Specified by:

toString in class AutoMedType

getAttributeType

public int getAttributeType(int attributeNumber)

equals

public boolean equals(AutoMedType v)

Description copied from class: AutoMedType

Test two AutoMedTypes for equality, performing conversions as appropriate. Note that, unlike SQL but like Java, two null types will return true when compared.

Specified by:

equals in class AutoMedType

getType

public final int getType()

Description copied from class: AutoMedType

Return the Type (INTEGER, TUPLE, ...) of this AutoMedType

Specified by:

getType in class AutoMedType