Package net.ssehub.easy.instantiation.core.model.vilTypes

Class CompoundTypeDescriptor.SlotDescriptor

java.lang.Object

net.ssehub.easy.instantiation.core.model.vilTypes.FieldDescriptor

net.ssehub.easy.instantiation.core.model.vilTypes.CompoundTypeDescriptor.SlotDescriptor

All Implemented Interfaces:

IModifierHolder, IMetaField

Enclosing class:

CompoundTypeDescriptor

public static class CompoundTypeDescriptor.SlotDescriptor
extends FieldDescriptor
implements IModifierHolder

A slot field descriptor for compounds.

Author:

Holger Eichelberger

Field Summary

Fields

Modifier and Type	Field	Description
private Expression	expression
private boolean	isConstant
private java.util.List<IModifier>	modifiers

Constructor Summary

Constructors

Constructor	Description
SlotDescriptor(CompoundTypeDescriptor declaringType, VariableDeclaration var)	Creates a slot descriptor.

Method Summary

Modifier and Type	Method	Description
Expression	getExpression()	Returns the initialization expression.
java.lang.String	getJavaSignature()	Returns the java-like signature of this operation.
IModifier	getModifier(int index)	Returns the specified modifier.
int	getModifierCount()	Returns the number of modifiers.
java.lang.Object	getValue(java.lang.Object owner)	Returns the actual value of this field.
boolean	hasModifier(IModifier modifier)	Returns whether this variable declaration has a given modifier.
boolean	isConstant()	Returns whether this slot is constant or not.
boolean	isReadOnly()	Returns whether the field is read-only.
boolean	isStatic()	Returns whether the field is static.
void	setValue(java.lang.Object owner, java.lang.Object value)	Changes the actual value for this field in owner.

Methods inherited from class net.ssehub.easy.instantiation.core.model.vilTypes.FieldDescriptor

getDeclaringType, getMetaType, getMetaValue, getName, getSignature, getType

Methods inherited from class java.lang.Object

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

Field Detail

modifiers

private java.util.List<IModifier> modifiers

expression

private Expression expression

isConstant

private boolean isConstant

Constructor Detail

SlotDescriptor

public SlotDescriptor(CompoundTypeDescriptor declaringType,
                      VariableDeclaration var)

Creates a slot descriptor.

Parameters:

declaringType - the declaring compound type

var - the variable declaration representing the variable

Method Detail

getJavaSignature

public java.lang.String getJavaSignature()

Description copied from interface: IMetaField

Returns the java-like signature of this operation.

Specified by:

getJavaSignature in interface IMetaField

Returns:

the java-like Java signature of this operation

isReadOnly

public boolean isReadOnly()

Description copied from interface: IMetaField

Returns whether the field is read-only. Please note that this method provides a "static" information, i.e., it cannot change during script execution. If a field can be modified at all, this method shall return true and determine when the value is changed, whether the actual access is permitted. In contrast, if it is known that the field cannot be changed at all, this method shall return false.

Specified by:

isReadOnly in interface IMetaField

Returns:

true if the field is read-only, false else

isConstant

public boolean isConstant()

Returns whether this slot is constant or not. By default, a slot is always not constant.

Returns:

True if this slot is a constant. False otherwise.

isStatic

public boolean isStatic()

Description copied from interface: IMetaField

Returns whether the field is static.

Specified by:

isStatic in interface IMetaField

Returns:

true if the field is static, false else

getValue

public java.lang.Object getValue(java.lang.Object owner)
                          throws VilException

Description copied from class: FieldDescriptor

Returns the actual value of this field.

Specified by:

getValue in class FieldDescriptor

Parameters:

owner - the owning object (ignored, i.e., shall be null, if IMetaField.isStatic())

Returns:

the actual value

Throws:

VilException - in case that retrieving the value fails

setValue

public void setValue(java.lang.Object owner,
                     java.lang.Object value)
              throws VilException

Description copied from class: FieldDescriptor

Changes the actual value for this field in owner.

Specified by:

setValue in class FieldDescriptor

Parameters:

owner - the owning object (ignored, i.e., shall be null, if IMetaField.isStatic())

value - the new value

Throws:

VilException - in case that setting the value fails, e.g., as this field is IMetaField.isReadOnly()

getModifierCount

public int getModifierCount()

Description copied from interface: IModifierHolder

Returns the number of modifiers.

Specified by:

getModifierCount in interface IModifierHolder

Returns:

the number of modifiers

getModifier

public IModifier getModifier(int index)

Description copied from interface: IModifierHolder

Returns the specified modifier.

Specified by:

getModifier in interface IModifierHolder

Parameters:

index - the 0-based index of the modifier to return

Returns:

the specified modifier

hasModifier

public boolean hasModifier(IModifier modifier)

Description copied from interface: IModifierHolder

Returns whether this variable declaration has a given modifier.

Specified by:

hasModifier in interface IModifierHolder

Parameters:

modifier - the modifier to search for

Returns:

true if this variable declaration has the modifier attached, false else

getExpression

public Expression getExpression()

Returns the initialization expression.

Returns:

the initialization expression, may be null if there is none