net.ontopia.persistence.query.jdo
Interface JDOExpressionIF

All Known Implementing Classes:

JDOAnd, JDOBoolean, JDOContains, JDOEndsWith, JDOEquals, JDOIsEmpty, JDOLike, JDONot, JDONotEquals, JDOOr, JDOSetOperation, JDOStartsWith, JDOValueExpression

public interface JDOExpressionIF

INTERNAL: Represents an expression in a JDO query. An expression will return a boolean value when evaluated.

Field Summary

static int	AND INTERNAL: Constant referring to the JDOAnd class.
static int	BOOLEAN INTERNAL: Constant referring to the JDOBoolean class.
static int	CONTAINS INTERNAL: Constant referring to the JDOContains class.
static int	ENDS_WITH INTERNAL: Constant referring to the JDOEndsWith class.
static int	EQUALS INTERNAL: Constant referring to the JDOEquals class.
static int	IS_EMPTY INTERNAL: Constant referring to the JDOIsEmpty class.
static int	LIKE INTERNAL: Constant referring to the JDOLike class.
static int	NOT INTERNAL: Constant referring to the JDONot class.
static int	NOT_EQUALS INTERNAL: Constant referring to the JDONotEquals class.
static int	OR INTERNAL: Constant referring to the JDOOr class.
static int	SET_OPERATION INTERNAL: Constant referring to the JDOSetOperation class.
static int	STARTS_WITH INTERNAL: Constant referring to the JDOStartsWith class.
static int	VALUE_EXPRESSION INTERNAL: Constant referring to the JDOValueExpression class.

Method Summary

int	getType() INTERNAL: Returns the type of JDO expression indicated by one of the constants in the JDOExpressionIF interface.
void	visit(JDOVisitorIF visitor) INTERNAL: Allows the value to be visited.

Field Detail

AND

static final int AND

INTERNAL: Constant referring to the JDOAnd class.

See Also:

Constant Field Values

OR

static final int OR

INTERNAL: Constant referring to the JDOOr class.

See Also:

Constant Field Values

NOT

static final int NOT

INTERNAL: Constant referring to the JDONot class.

See Also:

Constant Field Values

BOOLEAN

static final int BOOLEAN

INTERNAL: Constant referring to the JDOBoolean class.

See Also:

Constant Field Values

VALUE_EXPRESSION

static final int VALUE_EXPRESSION

INTERNAL: Constant referring to the JDOValueExpression class.

See Also:

Constant Field Values

EQUALS

static final int EQUALS

INTERNAL: Constant referring to the JDOEquals class.

See Also:

Constant Field Values

NOT_EQUALS

static final int NOT_EQUALS

INTERNAL: Constant referring to the JDONotEquals class.

See Also:

Constant Field Values

CONTAINS

static final int CONTAINS

INTERNAL: Constant referring to the JDOContains class.

See Also:

Constant Field Values

IS_EMPTY

static final int IS_EMPTY

INTERNAL: Constant referring to the JDOIsEmpty class.

See Also:

Constant Field Values

STARTS_WITH

static final int STARTS_WITH

INTERNAL: Constant referring to the JDOStartsWith class.

See Also:

Constant Field Values

ENDS_WITH

static final int ENDS_WITH

INTERNAL: Constant referring to the JDOEndsWith class.

See Also:

Constant Field Values

LIKE

static final int LIKE

INTERNAL: Constant referring to the JDOLike class.

See Also:

Constant Field Values

SET_OPERATION

static final int SET_OPERATION

INTERNAL: Constant referring to the JDOSetOperation class.

See Also:

Constant Field Values

Method Detail

getType

int getType()

INTERNAL: Returns the type of JDO expression indicated by one of the constants in the JDOExpressionIF interface.

visit

void visit(JDOVisitorIF visitor)

INTERNAL: Allows the value to be visited. This method is used for retrieval of nested data in expressions.