Package net.shibboleth.ext.spring.util

Class SpringExpressionFunction<T,U>

java.lang.Object

net.shibboleth.ext.spring.util.AbstractSpringExpressionEvaluatorEx

net.shibboleth.ext.spring.util.SpringExpressionFunction<T,U>

Type Parameters:

T - type of input

U - type of output

All Implemented Interfaces:

Function<T,U>

public class SpringExpressionFunction<T,U>
extends AbstractSpringExpressionEvaluatorEx
implements Function<T,U>

Function whose output is defined by an Spring EL expression.

Since:

5.4.0

Field Summary

Fields

Modifier and Type	Field	Description
private Class<T>	inputType	The input type.
private org.slf4j.Logger	log	Class logger.

Constructor Summary

Constructors

Constructor	Description
SpringExpressionFunction(String expression)	Constructor.

Method Summary

Modifier and Type	Method	Description
U	apply(T input)
Class<T>	getInputType()	Get the input type to be enforced.
protected void	prepareContext(EvaluationContext context, Object... input)	Pre-process the script context before execution.
void	setInputType(Class<T> type)	Set the input type to be enforced.
void	setOutputType(Class<?> type)	Set the output type to be enforced.
void	setReturnOnError(Object value)	Set value to return if an error occurs.

Methods inherited from class net.shibboleth.ext.spring.util.AbstractSpringExpressionEvaluatorEx

evaluate, getCustomObject, getOutputType, getReturnOnError, setCustomObject, setHideExceptions

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Function

andThen, compose

Field Detail

log

@Nonnull
private final org.slf4j.Logger log

Class logger.

inputType

@Nullable
private Class<T> inputType

The input type.

Constructor Detail

SpringExpressionFunction

public SpringExpressionFunction(@Nonnull @NotEmpty @ParameterName(name="expression")
                                String expression)

Constructor.

Parameters:

expression - the expression to evaluate

Method Detail

getInputType

@Nullable
public Class<T> getInputType()

Get the input type to be enforced.

Returns:

input type

setInputType

public void setInputType(@Nullable
                         Class<T> type)

Set the input type to be enforced.

Parameters:

type - input type

setOutputType

public void setOutputType(@Nullable
                          Class<?> type)

Set the output type to be enforced.

Overrides:

setOutputType in class AbstractSpringExpressionEvaluatorEx

Parameters:

type - output type

setReturnOnError

public void setReturnOnError(@Nullable
                             Object value)

Set value to return if an error occurs.

Overrides:

setReturnOnError in class AbstractSpringExpressionEvaluatorEx

Parameters:

value - value to return

apply

public U apply(@Nullable
               T input)

Specified by:

apply in interface Function<T,U>

prepareContext

protected void prepareContext(@Nonnull
                              EvaluationContext context,
                              @Nullable
                              Object... input)

Pre-process the script context before execution.

Specified by:

prepareContext in class AbstractSpringExpressionEvaluatorEx

Parameters:

context - the expression context

input - the inputs