Package org.basex.query.var

Class StaticVar

java.lang.Object

org.basex.query.expr.ExprInfo

org.basex.query.scope.StaticScope

org.basex.query.scope.StaticDecl

org.basex.query.var.StaticVar

All Implemented Interfaces:

Scope

public final class StaticVar
extends StaticDecl

Static variable to which an expression can be assigned.

Author:

BaseX Team 2005-21, BSD License, Leo Woerteler

Field Summary

Fields

Modifier and Type	Field	Description
final boolean	external	If this variable can be bound from outside the query.

Fields inherited from class org.basex.query.scope.StaticDecl

anns, declType, dontEnter, name

Fields inherited from class org.basex.query.scope.StaticScope

compiled, expr, info, sc, vs

Method Summary

Modifier and Type	Method	Description
void	comp(CompileContext cc)	Compiles the expression contained in this scope.
String	description()	Returns a string description of the expression.
byte[]	id()	Returns a unique identifier for this declaration.
void	plan(QueryPlan plan)	Creates a query plan.
void	plan(QueryString qs)	Creates a query string.
boolean	visit(ASTVisitor visitor)	Traverses this scope with the given ASTVisitor.

Methods inherited from class org.basex.query.scope.StaticDecl

seqType

Methods inherited from class org.basex.query.scope.StaticScope

compiled, doc

Methods inherited from class org.basex.query.expr.ExprInfo

toErrorString, toString

Methods inherited from class java.lang.Object

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

Field Details

external

public final boolean external

If this variable can be bound from outside the query.

Method Details

comp

public void comp(CompileContext cc)
          throws QueryException

Description copied from interface: Scope

Compiles the expression contained in this scope.

Parameters:

cc - compilation context

Throws:

QueryException - compilation errors

visit

public boolean visit(ASTVisitor visitor)

Description copied from interface: Scope

Traverses this scope with the given ASTVisitor.

Parameters:

visitor - visitor

Returns:

continue flag

id

public byte[] id()

Description copied from class: StaticDecl

Returns a unique identifier for this declaration.

Specified by:

id in class StaticDecl

Returns:

a byte sequence that uniquely identifies this declaration

description

public String description()

Description copied from class: ExprInfo

Returns a string description of the expression. This method is only called by error messages. Contrary to the ExprInfo.toString() method, arguments are not included in the output.

Overrides:

description in class ExprInfo

Returns:

result of check

plan

public void plan(QueryPlan plan)

Description copied from class: ExprInfo

Creates a query plan.

Specified by:

plan in class ExprInfo

Parameters:

plan - expression plan

plan

public void plan(QueryString qs)

Description copied from class: ExprInfo

Creates a query string.

Specified by:

plan in class ExprInfo

Parameters:

qs - query string builder