Class CompareTerm

java.lang.Object

CompareTerm

Direct Known Subclasses:

Column

public class CompareTerm
extends Object

A class that represents an operand in a comparison found in the WHERE clause of a SQL statement.

Field Summary

Fields

Modifier and Type	Field and Description
static int	INTEGER An integer operand
static int	REAL A real (i.e., floating-point) operand
static int	STRING A string operand

Constructor Summary

Constructors

Constructor and Description
CompareTerm() Default constructor used when constructing a Column object
CompareTerm(Double d) Constructs a CompareTerm that represents a floating-point operand with a fixed value.
CompareTerm(Integer i) Constructs a CompareTerm that represents an integer operand with a fixed value.
CompareTerm(String s) Constructs a CompareTerm that represents a String operand with a fixed value.

Method Summary

Modifier and Type	Method and Description
int	getValType() Gets the type of the operand's value.
Object	getValue() Gets the operand's value.
void	setValType(int type) Sets the type of the operand's value.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

INTEGER

public static final int INTEGER

An integer operand

See Also:

Constant Field Values

REAL

public static final int REAL

A real (i.e., floating-point) operand

See Also:

Constant Field Values

STRING

public static final int STRING

A string operand

See Also:

Constant Field Values

Constructor Detail

CompareTerm

public CompareTerm()

Default constructor used when constructing a Column object

CompareTerm

public CompareTerm(Integer i)

Constructs a CompareTerm that represents an integer operand with a fixed value.

Parameters:

i - the value of the operand

CompareTerm

public CompareTerm(Double d)

Constructs a CompareTerm that represents a floating-point operand with a fixed value.

Parameters:

d - the value of the operand

CompareTerm

public CompareTerm(String s)

Constructs a CompareTerm that represents a String operand with a fixed value.

Parameters:

s - the value of the operand

Method Detail

setValType

public void setValType(int type)

Sets the type of the operand's value.

Parameters:

type - the type (one of the constants defined in this class)

getValType

public int getValType()

Gets the type of the operand's value.

Returns:

the operand's type (one of the constants defined in this class)

getValue

public Object getValue()

Gets the operand's value.

Returns:

the operand's value

toString

public String toString()

Overrides:

toString in class Object