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com.opensymphony.util
Class BeanUtils
java.lang.Objectcom.opensymphony.util.BeanUtils
public class BeanUtils
- extends Object
Convenience methods for manipulating the getter/setter properties of JavaBeans (well any kind of Object).
These methods are provided purely for convenience to frequent operations. No exceptions are thrown from the methods.
- Version:
- $Revision: 47 $
- Author:
- Joe Walnes
| Constructor Summary | |
|---|---|
BeanUtils()
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| Method Summary | |
|---|---|
static String[] |
getPropertyNames(Object obj)
Get list of property names of bean. |
static Object |
getValue(Object obj,
String property)
Get a single property of the bean. |
static Map |
getValues(Object obj,
String[] allowedProperties)
Get Map of property values from a bean. |
static boolean |
setValue(Object obj,
String property,
Object value)
Set a single property of the bean. |
static void |
setValues(Object obj,
Map valueMap,
String[] allowedProperties)
Set multiple properties of a bean at once using a Map. |
static void |
setValues(Object obj,
Object src,
String[] allowedProperties)
Set multiple properties of a bean at once using properties of another bean. |
static void |
setValues(Object obj,
ServletRequest request,
String[] allowedProperties)
Set multiple properties of a bean at once using the params passed across from the ServletRequest (useful for mapping HTML forms to beans). |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
BeanUtils
public BeanUtils()
| Method Detail |
|---|
getPropertyNames
public static final String[] getPropertyNames(Object obj)
- Get list of property names of bean.
- Parameters:
obj- Object to query for property names.- Returns:
- Array of property names, or null if an error occurred.
setValue
public static final boolean setValue(Object obj, String property, Object value)
- Set a single property of the bean.
- Parameters:
obj- The object to be manipulated.property- Name of property to set.value- Value to set property to.- Returns:
- Boolean indicating success.
getValue
public static final Object getValue(Object obj, String property)
- Get a single property of the bean.
- Parameters:
obj- The object to be accessed.property- Name of property to get.- Returns:
- Value of property. If property was not found, null is returned.
setValues
public static final void setValues(Object obj, Map valueMap, String[] allowedProperties)
- Set multiple properties of a bean at once using a Map. Any unknown properties
shall be ignored.
- Parameters:
obj- The object to be manipulated.valueMap- Map containing property-name (String) / property-value (Object) pairs to set in the object.allowedProperties- If array is NOT null, only the properties matching names passed here shall be set.
setValues
public static final void setValues(Object obj, Object src, String[] allowedProperties)
- Set multiple properties of a bean at once using properties of another bean.
The beans may be of different types and any properties not common to both types
shall be ignored.
- Parameters:
obj- The object to be manipulated.src- The object containing the properties to be copied.allowedProperties- If array is NOT null, only the properties matching names passed here shall be set.
setValues
public static final void setValues(Object obj, ServletRequest request, String[] allowedProperties)
- Set multiple properties of a bean at once using the params passed across
from the ServletRequest (useful for mapping HTML forms to beans). Any properties
not known shall be ignored.
- Parameters:
obj- The object to be manipulated.request- ServletRequest to get params from.allowedProperties- If array is NOT null, only the properties matching names passed here shall be set.
getValues
public static final Map getValues(Object obj, String[] allowedProperties)
- Get Map of property values from a bean.
- Parameters:
obj- Object to query for properties.allowedProperties- If array is NOT null, only the properties matching names passed here shall be retrieved.- Returns:
- Map containing property-name (String) / property-value (Object) pairs.
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