biz.hammurapi.util
Class BeanVisitable

java.lang.Object
  biz.hammurapi.util.BeanVisitable

All Implemented Interfaces:

Visitable

public class BeanVisitable
extends java.lang.Object
implements Visitable

Wraps bean into visitable. Children are inferred from:

• getXXX methods which
  • Are declared in classes which belong to one of root packages or its sub-packages
  • Have return type either collection or class (including arrays) belonging to one of root packages or its subpackages.
• Public fields of type belonging to one of root packages or subpackages (including arrays) or of collection type.

Author:

Pavel Vlasov

Constructor Summary

	BeanVisitable(java.lang.Object bean)
	BeanVisitable(java.lang.Object bean, java.lang.String rootPackage)
	BeanVisitable(java.lang.Object bean, java.lang.String[] rootPackages)
protected	BeanVisitable(java.lang.Object bean, java.lang.String[] rootPackages, java.util.Map trace, java.util.Map parentMap) This constructor is used by BeanVisitable itself to wrap children into visitable.

Method Summary

boolean	accept(Visitor visitor)
java.lang.Integer	getIdentity()
java.lang.Object[]	getPath(java.lang.Object obj)
protected void	handleAccessError(java.lang.reflect.Field field, java.lang.Exception e) Prints stack trace to System.err.
protected void	handleAccessError(java.lang.reflect.Method method, java.lang.Exception e) Prints stack trace to System.err.
protected boolean	inTheRightPackage(java.lang.Class clazz)
protected Visitable	wrap(java.lang.Object child) Wraps child into Visitable and updates path.

Methods inherited from class java.lang.Object

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

Constructor Detail

BeanVisitable

public BeanVisitable(java.lang.Object bean)

BeanVisitable

public BeanVisitable(java.lang.Object bean,
                     java.lang.String rootPackage)

Parameters:

bean - Bean to visit

rootPackage - Package for child classes to visit.

BeanVisitable

public BeanVisitable(java.lang.Object bean,
                     java.lang.String[] rootPackages)

Parameters:

bean - Bean to visit

rootPackages - Packages for child classes to visit.

BeanVisitable

protected BeanVisitable(java.lang.Object bean,
                        java.lang.String[] rootPackages,
                        java.util.Map trace,
                        java.util.Map parentMap)

This constructor is used by BeanVisitable itself to wrap children into visitable.

Parameters:

bean - Bean to visit

rootPackages - Package for child classes to visit.

Method Detail

inTheRightPackage

protected boolean inTheRightPackage(java.lang.Class clazz)

accept

public boolean accept(Visitor visitor)

Specified by:

accept in interface Visitable

Returns:

visitor.vistit()

handleAccessError

protected void handleAccessError(java.lang.reflect.Field field,
                                 java.lang.Exception e)

Prints stack trace to System.err. Override if necessary

Parameters:

field -

e -

handleAccessError

protected void handleAccessError(java.lang.reflect.Method method,
                                 java.lang.Exception e)

Prints stack trace to System.err. Override if necessary

Parameters:

method -

e -

wrap

protected Visitable wrap(java.lang.Object child)

Wraps child into Visitable and updates path. If child is already instance of Visitable it is returned as is and path is not updated.

Parameters:

child -

Returns:

getPath

public java.lang.Object[] getPath(java.lang.Object obj)

Returns:

Path from given object to the root of the model, the given object included.

getIdentity

public java.lang.Integer getIdentity()

Returns:

System hash code of underlying bean