org.yajul.util
Class BeanProperties

java.lang.Object
  org.yajul.util.BeanProperties

public class BeanProperties
extends java.lang.Object

Represents the property accessor methods for a given class, and provides methods for accessing the properties at run-time.

Author:

josh Apr 4, 2004 9:11:19 AM

Constructor Summary

BeanProperties(java.lang.Class c)
Constructs a set of property accessors from the class.

Method Summary

java.util.Iterator	accessorMethods() Returns an iterator that returns all AccessorMethods for all properties in the class.
void	copy(java.lang.Object bean, java.lang.Object copy) Copies all of the properties from one bean into another.
PropertyAccessors	getAccessorMethods(java.lang.String propertyName) Returns the pair of accessor methods for the given property name.
java.lang.String	getClassName() Returns the name of the class.
double	getDoubleProperty(java.lang.Object bean, java.lang.String propertyName) Returns a double property value.
int	getIntProperty(java.lang.Object bean, java.lang.String propertyName) Returns an int property value.
java.lang.Object	getProperty(java.lang.Object bean, java.lang.String propertyName) Returns the value of the specified property.
java.util.Set	getPropertyNames() Returns the set of all the property name Strings in the class.
java.util.Iterator	propertyNames() Returns an iterator that returns the String names of all properties in the class.
java.lang.Object	setProperty(java.lang.Object bean, java.lang.String propertyName, java.lang.Object value) Sets the property in the bean to the specified value.
int	size() Returns the number of properties in the class.
java.util.Collection<java.lang.Object>	values(java.lang.Object bean) Returns a collection of all of the property values in the specified bean.

Methods inherited from class java.lang.Object

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

Constructor Detail

BeanProperties

public BeanProperties(java.lang.Class c)

Constructs a set of property accessors from the class.

Parameters:

c - the class

Method Detail

getClassName

public java.lang.String getClassName()

Returns the name of the class.

Returns:

the name of the class.

size

public int size()

Returns the number of properties in the class.

Returns:

the number of properties in the class.

getProperty

public java.lang.Object getProperty(java.lang.Object bean,
                                    java.lang.String propertyName)

Returns the value of the specified property.

Parameters:

bean - the object

propertyName - the name of the property to get

Returns:

the value of the property in the specified bean

setProperty

public java.lang.Object setProperty(java.lang.Object bean,
                                    java.lang.String propertyName,
                                    java.lang.Object value)

Sets the property in the bean to the specified value.

Parameters:

bean - the object to set the property in

propertyName - the name of the property

value - the new property value

Returns:

the new property value

propertyNames

public java.util.Iterator propertyNames()

Returns an iterator that returns the String names of all properties in the class.

Returns:

an iterator that returns the String names of all properties in the class.

getPropertyNames

public java.util.Set getPropertyNames()

Returns the set of all the property name Strings in the class.

Returns:

the set of all the property name Strings in the class.

getAccessorMethods

public PropertyAccessors getAccessorMethods(java.lang.String propertyName)

Returns the pair of accessor methods for the given property name.

Parameters:

propertyName - the property name.

Returns:

the accessor methods for the property

accessorMethods

public java.util.Iterator accessorMethods()

Returns an iterator that returns all AccessorMethods for all properties in the class.

Returns:

an iterator that returns all AccessorMethods for all properties in the class.

getDoubleProperty

public double getDoubleProperty(java.lang.Object bean,
                                java.lang.String propertyName)

Returns a double property value.

Parameters:

bean - the bean

propertyName - the property name

Returns:

the property value as a double

getIntProperty

public int getIntProperty(java.lang.Object bean,
                          java.lang.String propertyName)

Returns an int property value.

Parameters:

bean - the bean

propertyName - the property name

Returns:

the int property value

values

public java.util.Collection<java.lang.Object> values(java.lang.Object bean)
                                              throws java.lang.Exception

Returns a collection of all of the property values in the specified bean.

Parameters:

bean - the bean

Returns:

a collection of all of the property values in the specified bean

Throws:

java.lang.Exception - if a property cannot be accessed.

copy

public void copy(java.lang.Object bean,
                 java.lang.Object copy)
          throws java.lang.Exception

Copies all of the properties from one bean into another. The two beans must be of the same class.

Parameters:

bean - the source bean.

copy - the target bean.

Throws:

java.lang.Exception - if a property could not be accessed.