Package com.github.fungal.api.util

Class Injection

java.lang.Object

com.github.fungal.api.util.Injection

public class Injection
extends Object

Injection utility which can inject values into objects

Author:

Jesper Pedersen

Constructor Summary

Constructors

Constructor	Description
Injection()	Constructor

Method Summary

Modifier and Type	Method	Description
protected Field	findField(Class<?> clz, String fieldName, String fieldType)	Find a field
protected Method	findMethod(Class<?> clz, String methodName, String propertyType)	Find a method
protected String	getSubstitutionValue(String input)	System property substitution
protected Object	getValue(String name, Class<?> clz, Object v, ClassLoader cl)	Get the value
void	inject(Object object, String propertyName, Object propertyValue)	Inject a value into an object property
void	inject(Object object, String propertyName, Object propertyValue, String propertyType)	Inject a value into an object property
void	inject(Object object, String propertyName, Object propertyValue, String propertyType, boolean includeFields)	Inject a value into an object property

Methods inherited from class java.lang.Object

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

Constructor Details

Injection

public Injection()

Constructor

Method Details

inject

public void inject(Object object,
 String propertyName,
 Object propertyValue)
            throws NoSuchMethodException,
IllegalAccessException,
InvocationTargetException

Inject a value into an object property

Parameters:

object - The object

propertyName - The property name

propertyValue - The property value

Throws:

NoSuchMethodException - If the property method cannot be found

IllegalAccessException - If the property method cannot be accessed

InvocationTargetException - If the property method cannot be executed

inject

public void inject(Object object,
 String propertyName,
 Object propertyValue,
 String propertyType)
            throws NoSuchMethodException,
IllegalAccessException,
InvocationTargetException

Inject a value into an object property

Parameters:

object - The object

propertyName - The property name

propertyValue - The property value

propertyType - The property type as a fully quilified class name

Throws:

NoSuchMethodException - If the property method cannot be found

IllegalAccessException - If the property method cannot be accessed

InvocationTargetException - If the property method cannot be executed

inject

public void inject(Object object,
 String propertyName,
 Object propertyValue,
 String propertyType,
 boolean includeFields)
            throws NoSuchMethodException,
IllegalAccessException,
InvocationTargetException

Inject a value into an object property

Parameters:

object - The object

propertyName - The property name

propertyValue - The property value

propertyType - The property type as a fully quilified class name

includeFields - Should fields be included for injection if a method can't be found

Throws:

NoSuchMethodException - If the property method cannot be found

IllegalAccessException - If the property method cannot be accessed

InvocationTargetException - If the property method cannot be executed

findMethod

protected Method findMethod(Class<?> clz,
 String methodName,
 String propertyType)

Find a method

Parameters:

clz - The class

methodName - The method name

propertyType - The property type; can be null

Returns:

The method; null if not found

findField

protected Field findField(Class<?> clz,
 String fieldName,
 String fieldType)

Find a field

Parameters:

clz - The class

fieldName - The field name

fieldType - The field type; can be null

Returns:

The field; null if not found

getValue

protected Object getValue(String name,
 Class<?> clz,
 Object v,
 ClassLoader cl)
                   throws Exception

Get the value

Parameters:

name - The value name

clz - The value class

v - The value

cl - The class loader

Returns:

The substituted value

Throws:

Exception - Thrown in case of an error

getSubstitutionValue

protected String getSubstitutionValue(String input)

System property substitution

Parameters:

input - The input string

Returns:

The output