Package org.apache.commons.collections.functors

Class InvokerTransformer

java.lang.Object

org.apache.commons.collections.functors.InvokerTransformer

All Implemented Interfaces:

Serializable, Transformer

@Deprecated(since="2021-04-30")
public class InvokerTransformer
extends Object
implements Transformer, Serializable

Deprecated.

Apache Commons Collections version 3.x is being deprecated from AEMaaCS. The upgraded version 4.4 of Commons Collections is already included as replacement. Customers are advised to upgrade to this version of the library. Please note: the package name was changed to org.apache.commons.collections4. Further note that there are AEM APIs currently exposing the old collections classes; these will be updated in upcoming releases.

Transformer implementation that creates a new object instance by reflection.

WARNING: from v3.2.2 onwards this class will throw an UnsupportedOperationException when trying to serialize or de-serialize an instance to prevent potential remote code execution exploits.

In order to re-enable serialization support for InvokerTransformer the following system property can be used (via -Dproperty=true):

  org.apache.commons.collections.enableUnsafeSerialization
  

Since:

Commons Collections 3.0

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
InvokerTransformer(String methodName, Class[] paramTypes, Object[] args)	Deprecated. Constructor that performs no validation.

Method Summary

Modifier and Type	Method	Description
static Transformer	getInstance(String methodName)	Deprecated. Gets an instance of this transformer calling a specific method with no arguments.
static Transformer	getInstance(String methodName, Class[] paramTypes, Object[] args)	Deprecated. Gets an instance of this transformer calling a specific method with specific values.
Object	transform(Object input)	Deprecated. Transforms the input to result by invoking a method on the input.

Methods inherited from class java.lang.Object

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

Constructor Details

InvokerTransformer

public InvokerTransformer(String methodName,
 Class[] paramTypes,
 Object[] args)

Deprecated.

Constructor that performs no validation. Use getInstance if you want that.

Parameters:

methodName - the method to call

paramTypes - the constructor parameter types, not cloned

args - the constructor arguments, not cloned

Method Details

getInstance

public static Transformer getInstance(String methodName)

Deprecated.

Gets an instance of this transformer calling a specific method with no arguments.

Parameters:

methodName - the method name to call

Returns:

an invoker transformer

Since:

Commons Collections 3.1

getInstance

public static Transformer getInstance(String methodName,
 Class[] paramTypes,
 Object[] args)

Deprecated.

Gets an instance of this transformer calling a specific method with specific values.

Parameters:

methodName - the method name to call

paramTypes - the parameter types of the method

args - the arguments to pass to the method

Returns:

an invoker transformer

transform

public Object transform(Object input)

Deprecated.

Transforms the input to result by invoking a method on the input.

Specified by:

transform in interface Transformer

Parameters:

input - the input object to transform

Returns:

the transformed result, null if null input