com.mjh.util
Class BeanMap

java.lang.Object
  |
  +--com.mjh.util.BeanMap

All Implemented Interfaces:

java.util.Map

public class BeanMap

extends java.lang.Object

implements java.util.Map

BeanMap provides an adaptor for Java Beans to allow them to be treated as a java.util.Map.

BeanMap is pretty good at coercing string values into the appropriate primitive type for a bean setter method argument.

For example:

MyBean myBean = new MyBean();
BeanMap myMap = new BeamMap(myBean);
myMap.put("totalCount", "100");
Number value = (Number)myMap.get("totalCount");


The above code will call the setTotalCount() method on myBean with the string value of "100" coerced to the required integer argument. Then call the getTotalCount() method on myBean and convert the int return value to the Java primitive wrapper class.

The coercion makes BeanMap particularly useful to initialize beans from values stored in text files.

Author:

Mike Henderson

Nested Class Summary

class

BeanMap.BeanMapEntry

Constructor Summary

BeanMap(java.lang.Object object)

Method Summary

void	clear()
boolean	containsKey(java.lang.Object key)
boolean	containsValue(java.lang.Object o)
java.util.Set	entrySet()
boolean	equals(java.lang.Object o)
java.lang.Object	get(java.lang.Object key)
java.util.Map	getAll()
boolean	isEmpty()
java.util.Set	keySet()
java.lang.Object	put(java.lang.Object key, java.lang.Object value)
void	putAll(java.util.Map map)
java.lang.Object	remove(java.lang.Object key)
int	size()
java.util.Collection	values()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

hashCode

Constructor Detail

BeanMap

public BeanMap(java.lang.Object object)
        throws java.beans.IntrospectionException

Method Detail

put

public java.lang.Object put(java.lang.Object key,
                            java.lang.Object value)

Specified by:

put in interface java.util.Map

get

public java.lang.Object get(java.lang.Object key)

Specified by:

get in interface java.util.Map

containsKey

public boolean containsKey(java.lang.Object key)

Specified by:

containsKey in interface java.util.Map

containsValue

public boolean containsValue(java.lang.Object o)

Specified by:

containsValue in interface java.util.Map

clear

public void clear()

Specified by:

clear in interface java.util.Map

remove

public java.lang.Object remove(java.lang.Object key)

Specified by:

remove in interface java.util.Map

values

public java.util.Collection values()

Specified by:

values in interface java.util.Map

keySet

public java.util.Set keySet()

Specified by:

keySet in interface java.util.Map

entrySet

public java.util.Set entrySet()

Specified by:

entrySet in interface java.util.Map

equals

public boolean equals(java.lang.Object o)

Specified by:

equals in interface java.util.Map

Overrides:

equals in class java.lang.Object

size

public int size()

Specified by:

size in interface java.util.Map

getAll

public java.util.Map getAll()

putAll

public void putAll(java.util.Map map)

Specified by:

putAll in interface java.util.Map

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Map