org.apache.bsf.util
public class ReflectionUtils extends Object
Method Summary | |
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static void | addEventListener(Object source, String eventSetName, EventProcessor processor)
Add an event processor as a listener to some event coming out of an
object.
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static Bean | createBean(ClassLoader cld, String className, Class[] argTypes, Object[] args)
Create a bean using given class loader and using the appropriate
constructor for the given args of the given arg types. |
static Bean | createBean(ClassLoader cld, String className, Object[] args)
Create a bean using given class loader and using the appropriate
constructor for the given args. |
static Bean | getField(Object target, String fieldName) |
static Bean | getProperty(Object target, String propName, Integer index)
Get a property of a bean.
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static void | setField(Object target, String fieldName, Bean value, TypeConvertorRegistry tcr) |
static void | setProperty(Object target, String propName, Integer index, Object value, Class valueType, TypeConvertorRegistry tcr)
Set a property of a bean to a given value.
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Parameters: source event source eventSetName name of event set from event src to bind to processor event processor the event should be delegated to when it occurs; either via processEvent or processExceptionableEvent.
Throws: IntrospectionException if unable to introspect IllegalArgumentException if event set is unknown IllegalAccessException if the event adapter class or initializer is not accessible. InstantiationException if event adapter instantiation fails InvocationTargetException if something goes wrong while running add event listener method
Parameters: cl the class loader to use. If null, Class.forName is used. className name of class to instantiate argTypes array of argument types args array of arguments
Returns: the newly created bean
Throws: ClassNotFoundException if class is not loaded NoSuchMethodException if constructor can't be found InstantiationException if class can't be instantiated IllegalAccessException if class is not accessible IllegalArgumentException if argument problem InvocationTargetException if constructor excepted IOException if I/O error in beans.instantiate
Parameters: cl the class loader to use. If null, Class.forName is used. className name of class to instantiate args array of arguments
Returns: the newly created bean
Throws: ClassNotFoundException if class is not loaded NoSuchMethodException if constructor can't be found InstantiationException if class can't be instantiated IllegalAccessException if class is not accessible IllegalArgumentException if argument problem InvocationTargetException if constructor excepted IOException if I/O error in beans.instantiate
Parameters: target the object whose prop is to be gotten propName name of the property to set index index to get (if property is indexed)
Throws: IntrospectionException if unable to introspect IllegalArgumentException if problems with args: if the property is unknown, or if the property is given an index when its not, or if the property is not writeable, or if the given value cannot be assigned to the it (type mismatch). IllegalAccessException if read method is not accessible InvocationTargetException if read method excepts
Parameters: target the object whose prop is to be set propName name of the property to set index index to set (if property is indexed) value the property value valueType the type of the above (needed when its null) tcr type convertor registry to use to convert value type to property type if necessary
Throws: IntrospectionException if unable to introspect IllegalArgumentException if problems with args: if the property is unknown, or if the property is given an index when its not, or if the property is not writeable, or if the given value cannot be assigned to the it (type mismatch). IllegalAccessException if write method is not accessible InvocationTargetException if write method excepts