org.infolayer.ocl
Class VarDef

java.lang.Object
  org.infolayer.ocl.OclExpression
      org.infolayer.ocl.VarDef

All Implemented Interfaces:

Evaluable

public class VarDef

extends OclExpression

Please note: VarDef can mean a single variable definition as well as a set of variable definitions, depending on the context.

Field Summary

Fields inherited from class org.infolayer.ocl.OclExpression

SQL_LOGGER, SQL_MATCH, SQL_MAY_GENERALIZE, SQL_MAY_SPECIALIZE

Constructor Summary

VarDef(UmlClassifier type)
declares "self", shortcut for VarDef (null, type)

VarDef(VarDef base, java.lang.String name, UmlClassifier type)
Declares a new variable; the index is calculated automatically.

VarDef(VarDef base, UmlClassifier type)
a constructor for re-declaring the special variable "self"

Method Summary

void	assign(java.lang.Object[] bindings, java.lang.Object value)
OclExpression	clone(OclExpression[] dep) required for resolve
void	debug(java.io.PrintStream out)
java.lang.Object[]	ensureCapacity(java.lang.Object[] bindings) Returns an object array that has at least maxIndex + 1 entries (space for all variables)
java.lang.Object	eval(Bindings bindings)
VarDef	get(int idx)
VarDef	get(java.lang.String name)
OclExpression	getDependency(int i) required for conversion to sql expression, includes "base"
int	getDependencyCount() required for conversion to sql expression
int	getIndex()
java.lang.String	getName()
UmlClassifier	getType()
OclExpression	resolve(Bindings context, VarDef iterator) replaces variables with constants from context, except for the iterator.
java.lang.String	toString()

Methods inherited from class org.infolayer.ocl.OclExpression

isConstant, isQuery, isResolvable, simplify, toSql

Methods inherited from class java.lang.Object

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

Constructor Detail

VarDef

public VarDef(UmlClassifier type)

declares "self", shortcut for VarDef (null, type)

VarDef

public VarDef(VarDef base,
              java.lang.String name,
              UmlClassifier type)

Declares a new variable; the index is calculated automatically. May hide another variable with the same name. Do not use this method for changing self, since self has a fixed index of 0

VarDef

public VarDef(VarDef base,
              UmlClassifier type)

a constructor for re-declaring the special variable "self"

Method Detail

get

public VarDef get(int idx)

get

public VarDef get(java.lang.String name)

getIndex

public int getIndex()

getType

public UmlClassifier getType()

Specified by:

getType in interface Evaluable

Specified by:

getType in class OclExpression

eval

public java.lang.Object eval(Bindings bindings)

Specified by:

eval in interface Evaluable

Specified by:

eval in class OclExpression

ensureCapacity

public java.lang.Object[] ensureCapacity(java.lang.Object[] bindings)

Returns an object array that has at least maxIndex + 1 entries (space for all variables)

resolve

public OclExpression resolve(Bindings context,
                             VarDef iterator)

Description copied from class: OclExpression

replaces variables with constants from context, except for the iterator. May throw a RuntimeException if not supported. This is used by EvalIterative. Please note that the iterator index is changed to 0.

Overrides:

resolve in class OclExpression

assign

public void assign(java.lang.Object[] bindings,
                   java.lang.Object value)

debug

public void debug(java.io.PrintStream out)

toString

public java.lang.String toString()

Overrides:

toString in class OclExpression

getDependency

public OclExpression getDependency(int i)

Description copied from class: OclExpression

required for conversion to sql expression, includes "base"

Specified by:

getDependency in class OclExpression

clone

public OclExpression clone(OclExpression[] dep)

Description copied from class: OclExpression

required for resolve

Specified by:

clone in class OclExpression

getName

public java.lang.String getName()

Overrides:

getName in class OclExpression

getDependencyCount

public int getDependencyCount()

Description copied from class: OclExpression

required for conversion to sql expression

Specified by:

getDependencyCount in class OclExpression