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

Class CasePropExpression<T>

java.lang.Object

uk.ac.ed.epcc.safe.accounting.expr.CasePropExpression<T>

Type Parameters:

T - type of expression

All Implemented Interfaces:

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

public class CasePropExpression<T>
extends java.lang.Object
implements PropExpression<T>

a PropExpression for a case statement where the expression generated is selected by a set of RecordSelectors.

Author:

spb

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CasePropExpression.Case<T>

Constructor Summary

Constructors

Constructor and Description
CasePropExpression(java.lang.Class<T> target, PropExpression<? extends T> def, CasePropExpression.Case<T>... args)

Method Summary

Methods

Modifier and Type	Method and Description
<R> R	accept(BasePropExpressionVisitor<R> vis) Visitor pattern.
PropExpression<T>	copy() Generate an equivalent (and where possible immutable) copy of this expression.
boolean	equals(java.lang.Object obj)
java.util.LinkedList<CasePropExpression.Case<T>>	getCases()
PropExpression<? extends T>	getDefaultExpression()
java.lang.Class<? super T>	getTarget()
int	hashCode()

Methods inherited from class java.lang.Object

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

Constructor Detail

CasePropExpression

public CasePropExpression(java.lang.Class<T> target,
                  PropExpression<? extends T> def,
                  CasePropExpression.Case<T>... args)

Method Detail

getCases

public java.util.LinkedList<CasePropExpression.Case<T>> getCases()

getDefaultExpression

public PropExpression<? extends T> getDefaultExpression()

getTarget

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

Specified by:

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

accept

public <R> R accept(BasePropExpressionVisitor<R> 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:

R - type of return

Parameters:

vis - visitor

Returns:

result of type R

copy

public PropExpression<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

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object