ru.curs.celesta.score

Class Relop

java.lang.Object

ru.curs.celesta.score.Expr

ru.curs.celesta.score.LogicValuedExpr

ru.curs.celesta.score.Relop

public final class Relop
extends LogicValuedExpr

Relation (>=, <=, <>, =, <, >).

Field Summary

Fields

Modifier and Type	Field and Description
static int	EQ =.
static int	GT >.
static int	GTEQ >=.
static int	LIKE LIKE.
static int	LS <.
static int	LSEQ <=.
static int	NTEQ <>.

Constructor Summary

Constructors

Constructor and Description
Relop(Expr left, Expr right, int relop)

Method Summary

Modifier and Type	Method and Description
void	accept(ExprVisitor visitor) Accepts a visitor during a traversal of the parse tree for solving tasks of types validation, code generation etc.
List<Expr>	getAllOperands()
Expr	getLeft() Returns the left part.
int	getRelop() Returns the relation.
Expr	getRight() Returns the right part.

Methods inherited from class ru.curs.celesta.score.LogicValuedExpr

getMeta

Methods inherited from class ru.curs.celesta.score.Expr

getCSQL, getSQL, resolveFieldRefs

Methods inherited from class java.lang.Object

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

Field Detail

GT

public static final int GT

>.

See Also:

Constant Field Values

LS

public static final int LS

<.

See Also:

Constant Field Values

GTEQ

public static final int GTEQ

>=.

See Also:

Constant Field Values

LSEQ

public static final int LSEQ

<=.

See Also:

Constant Field Values

NTEQ

public static final int NTEQ

<>.

See Also:

Constant Field Values

EQ

public static final int EQ

=.

See Also:

Constant Field Values

LIKE

public static final int LIKE

LIKE.

See Also:

Constant Field Values

Constructor Detail

Relop

public Relop(Expr left,
             Expr right,
             int relop)

Method Detail

getLeft

public Expr getLeft()

Returns the left part.

Returns:

getRight

public Expr getRight()

Returns the right part.

Returns:

getRelop

public int getRelop()

Returns the relation.

Returns:

getAllOperands

public List<Expr> getAllOperands()

Specified by:

getAllOperands in class LogicValuedExpr

accept

public void accept(ExprVisitor visitor)
            throws ParseException

Description copied from class: Expr

Accepts a visitor during a traversal of the parse tree for solving tasks of types validation, code generation etc.

Parameters:

visitor - universal visitor element performing tasks with the parse tree.

Throws:

ParseException - semantic error during the tree traversal