com.hardcode.gdbms.engine.values
Interface Value

All Known Subinterfaces:

Geometry

All Known Implementing Classes:

AbstractGeometryValue, AbstractValue, BinaryValue, BooleanValue, ByteValue, DateValue, DoubleValue, FloatValue, GeometryCollection, GeometryImpl, IntValue, LongValue, NullValue, NumericValue, ShortValue, StringValue, TimestampValue, TimeValue, ValueCollection

public interface Value

Datatypes must implement this interface in order to the drivers to return that datatype. The implementation can inherit from AbstractValue or must implement equals and hashCode in the way explained at doEquals method javadoc

Field Summary

static int	BINARY
static int	BOOLEAN
static int	BYTE
static int	DATE
static int	DOUBLE
static int	FLOAT
static int	INT
static int	LONG
static int	SHORT
static int	STRING
static int	TIME
static int	TIMESTAMP

Method Summary

Value	and(Value value)
boolean	doEquals(java.lang.Object obj) In order to index the tables equals and hashCode must be defined.
int	doHashCode() The hashCode implementation.
Value	equals(Value value)
java.lang.String	getStringValue(ValueWriter writer) Gets the string representation of the value as it is defined in the specified ValueWriter
int	getType() Gets the type of the value
Value	greater(Value value)
Value	greaterEqual(Value value)
Value	inversa() DOCUMENT ME!
Value	less(Value value)
Value	lessEqual(Value value)
Value	like(Value value)
Value	notEquals(Value value)
Value	or(Value value)
Value	producto(Value value)
Value	suma(Value value)

Field Detail

BINARY

static final int BINARY

See Also:

Constant Field Values

BOOLEAN

static final int BOOLEAN

See Also:

Constant Field Values

BYTE

static final int BYTE

See Also:

Constant Field Values

DATE

static final int DATE

See Also:

Constant Field Values

DOUBLE

static final int DOUBLE

See Also:

Constant Field Values

FLOAT

static final int FLOAT

See Also:

Constant Field Values

INT

static final int INT

See Also:

Constant Field Values

LONG

static final int LONG

See Also:

Constant Field Values

SHORT

static final int SHORT

See Also:

Constant Field Values

STRING

static final int STRING

See Also:

Constant Field Values

TIMESTAMP

static final int TIMESTAMP

See Also:

Constant Field Values

TIME

static final int TIME

See Also:

Constant Field Values

Method Detail

and

Value and(Value value)
          throws IncompatibleTypesException

Throws:

IncompatibleTypesException

See Also:

com.hardcode.gdbms.engine.instruction.Operations#and(com.hardcode.gdbms.engine.values.value);

or

Value or(Value value)
         throws IncompatibleTypesException

Throws:

IncompatibleTypesException

See Also:

com.hardcode.gdbms.engine.instruction.Operations#or(com.hardcode.gdbms.engine.values.value);

producto

Value producto(Value value)
               throws IncompatibleTypesException

Throws:

IncompatibleTypesException

See Also:

com.hardcode.gdbms.engine.instruction.Operations#producto(com.hardcode.gdbms.engine.values.value);

suma

Value suma(Value value)
           throws IncompatibleTypesException

Throws:

IncompatibleTypesException

See Also:

com.hardcode.gdbms.engine.instruction.Operations#suma(com.hardcode.gdbms.engine.values.value);

inversa

Value inversa()
              throws IncompatibleTypesException

DOCUMENT ME!

Returns:

DOCUMENT ME!

Throws:

IncompatibleTypesException - DOCUMENT ME!

equals

Value equals(Value value)
             throws IncompatibleTypesException

Throws:

IncompatibleTypesException

See Also:

com.hardcode.gdbms.engine.instruction.Operations#equals(com.hardcode.gdbms.engine.values.Value)

notEquals

Value notEquals(Value value)
                throws IncompatibleTypesException

Throws:

IncompatibleTypesException

See Also:

com.hardcode.gdbms.engine.instruction.Operations#notEquals(com.hardcode.gdbms.engine.values.Value)

greater

Value greater(Value value)
              throws IncompatibleTypesException

Throws:

IncompatibleTypesException

See Also:

com.hardcode.gdbms.engine.instruction.Operations#greater(com.hardcode.gdbms.engine.values.Value)

less

Value less(Value value)
           throws IncompatibleTypesException

Throws:

IncompatibleTypesException

See Also:

com.hardcode.gdbms.engine.instruction.Operations#less(com.hardcode.gdbms.engine.values.Value)

greaterEqual

Value greaterEqual(Value value)
                   throws IncompatibleTypesException

Throws:

IncompatibleTypesException

See Also:

com.hardcode.gdbms.engine.instruction.Operations#greaterEqual(com.hardcode.gdbms.engine.values.Value)

lessEqual

Value lessEqual(Value value)
                throws IncompatibleTypesException

Throws:

IncompatibleTypesException

See Also:

com.hardcode.gdbms.engine.instruction.Operations#lessEqual(com.hardcode.gdbms.engine.values.Value)

like

Value like(Value value)
           throws IncompatibleTypesException

Throws:

IncompatibleTypesException

See Also:

com.hardcode.gdbms.engine.values.Operations#like(com.hardcode.gdbms.engine.values.Value)

doEquals

boolean doEquals(java.lang.Object obj)

In order to index the tables equals and hashCode must be defined. AbstractValue overrides these methods by calling doEquals and doHashCode. Any Value must inherit from abstract Value or override those methods in the same way.

See Also:

Object.equals(java.lang.Object)

doHashCode

int doHashCode()

The hashCode implementation. Every value with the same semantic information must return the same int

Returns:

integer

See Also:

Object.hashCode()

getStringValue

java.lang.String getStringValue(ValueWriter writer)

Gets the string representation of the value as it is defined in the specified ValueWriter

Parameters:

writer - Specifies the string representation for the values

Returns:

String

getType

int getType()

Gets the type of the value

Returns:

a java.sql.Types constant