uk.ac.ed.epcc.safe.accounting.expr

Class DeRefExpression<R extends uk.ac.ed.epcc.webapp.model.data.DataObject & ExpressionTarget,T>

java.lang.Object

uk.ac.ed.epcc.safe.accounting.expr.DeRefExpression<R,T>

All Implemented Interfaces:

PropExpression<T>, uk.ac.ed.epcc.webapp.content.FormatProvider, uk.ac.ed.epcc.webapp.Targetted<T>

Direct Known Subclasses:

DoubleDeRefExpression

public class DeRefExpression<R extends uk.ac.ed.epcc.webapp.model.data.DataObject & ExpressionTarget,T>
extends java.lang.Object
implements PropExpression<T>, uk.ac.ed.epcc.webapp.content.FormatProvider

Constructor Summary

Constructors

Constructor and Description
DeRefExpression(ReferenceExpression<R> tag, PropExpression<T> expr)

Method Summary

Methods

Modifier and Type	Method and Description
<X> X	accept(BasePropExpressionVisitor<X> vis) Visitor pattern.
DeRefExpression<R,T>	copy() Generate an equivalent (and where possible immutable) copy of this expression.
boolean	equals(java.lang.Object obj)
PropExpression<T>	getExpression()
uk.ac.ed.epcc.webapp.content.Labeller	getLabeller()
java.lang.Class<? super T>	getTarget()
ReferenceExpression<R>	getTargetObject()
int	hashCode()
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DeRefExpression

public DeRefExpression(ReferenceExpression<R> tag,
               PropExpression<T> expr)

Method Detail

getTargetObject

public ReferenceExpression<R> getTargetObject()

getTarget

public java.lang.Class<? super T> getTarget()

Specified by:

getTarget in interface uk.ac.ed.epcc.webapp.Targetted<T>

getExpression

public PropExpression<T> getExpression()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

accept

public <X> X accept(BasePropExpressionVisitor<X> vis)
         throws java.lang.Exception

Description copied from interface: PropExpression

Visitor pattern. Have the BasePropExpressionVisitor visit this expression

Specified by:

accept in interface PropExpression<T>

Throws:

java.lang.Exception

Type Parameters:

X - type of return

Parameters:

vis - visitor

Returns:

result of type R

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

copy

public DeRefExpression<R,T> copy()

Description copied from interface: PropExpression

Generate an equivalent (and where possible immutable) copy of this expression. Most implementing types should themselves be immutable, calling copy on their arguments and returning a self-reference for copy. In this case the return type of the function should be narrowed to the implemeting sub-type.

Specified by:

copy in interface PropExpression<T>

Returns:

PropExpression

getLabeller

public uk.ac.ed.epcc.webapp.content.Labeller getLabeller()

Specified by:

getLabeller in interface uk.ac.ed.epcc.webapp.content.FormatProvider