ReflectionHelper
extends HashMap<K, V>| java.lang.Object | |||
| ↳ | java.util.AbstractMap<K, V> | ||
| ↳ | java.util.HashMap<K, V> | ||
| ↳ | com.microstrategy.utils.ReflectionHelper | ||
Class Overview
A helper class that allows creating new object instances and getting/setting object's properties via reflection
Summary
| Public Constructors | |||||||||||
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| ReflectionHelper() | |||||||||||
| Public Methods | |||||||||||
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| static Class |
classForName(String className)
Return a Class object for the class with the given name.
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| static Object |
get(Object ob, String name)
Gets the object's property value
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| static String |
getEnumerationValue(String enumValue)
Returns the value of the constant defined in the Java fully
qualified class name and constant name received as a parameter.
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| static Method | getSetterMethod(Class type, String name) | ||||||||||
| static Object | invokeGetter(Object ob, String name) | ||||||||||
| static Object |
newInstance(String className, Class[] parameterTypes, Object[] initargs)
Creates a new instance for the class with the given name.
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| static Object |
newInstance(String className)
Creates a new instance for the class with the given name.
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| static void |
set(Object ob, String propName, Object value)
Gets the object's property value
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[Expand]
Inherited Methods | |||||||||||
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From class
java.util.HashMap
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From class
java.util.AbstractMap
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From class
java.lang.Object
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From interface
java.util.Map
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Public Constructors
public ReflectionHelper ()
Public Methods
public static Class classForName (String className)
Return a Class object for the class with the given name.
Parameters
| className | A fully qualified class name |
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Throws
| ClassNotFoundException | If the class is not found in the class-path (this includes the extended class path that includes all customizations). |
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See Also
public static Object get (Object ob, String name)
Gets the object's property value
Parameters
| ob | object |
|---|---|
| name | property name |
Returns
- property value;
public static String getEnumerationValue (String enumValue)
Returns the value of the constant defined in the Java fully qualified class name and constant name received as a parameter. The value is always returned as a String regardless of the original data type. If the class cannot be resolved or the data member does not exist, null is returned.
Parameters
| enumValue | FCN of the data member to resolved. i.e. com.microstrategy.web.beans.EnumReportBeanEvents.REPORT_EVENT_EXECUTE |
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Returns
- String object containing the value of the FCN memmber provided. For the previous example, the return value is "4001"
public static Method getSetterMethod (Class type, String name)
public static Object invokeGetter (Object ob, String name)
public static Object newInstance (String className, Class[] parameterTypes, Object[] initargs)
Creates a new instance for the class with the given name. The class is created using a constructor that expects the given list of parameters.
Parameters
| className | A fully qualified class name |
|---|---|
| parameterTypes | An array with the parameter types |
| initargs | An array with the values that shall be passed to the contructor. Clearly each argument needs to match the types passed in parameterTypes. |
Returns
- Object An instance of the given class.
Throws
| ClassNotFoundException | If the class is not found in the class path |
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| NoSuchMethodException |
See Also
public static Object newInstance (String className)
Creates a new instance for the class with the given name. The corresponding class needs to have a public non arguments constructor in order to successfully use this method.
Parameters
| className | A fully qualified class name |
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Returns
- Object An instance of the given class.
Throws
| ClassNotFoundException | If the class is not found in the class path |
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public static void set (Object ob, String propName, Object value)
Gets the object's property value
Parameters
| ob | object |
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| propName | property name |
| value | new value |