org.apache.camel.processor

Class ContractAdvice

java.lang.Object

org.apache.camel.processor.ContractAdvice

All Implemented Interfaces:

CamelInternalProcessorAdvice

public class ContractAdvice
extends Object
implements CamelInternalProcessorAdvice

A CamelInternalProcessorAdvice which applies Transformer and Validator according to the data type Contract.

The default camel Message implements DataTypeAware which holds a DataType to indicate current message type. If the input type declared by InputTypeDefinition is different from current IN message type, camel internal processor look for a Transformer which transforms from the current message type to the expected message type before routing. After routing, if the output type declared by OutputTypeDefinition is different from current OUT message (or IN message if no OUT), camel look for a Transformer and apply.

See Also:

Transformer, Validator, InputTypeDefinition, OutputTypeDefinition

Constructor Summary

Constructors

Constructor and Description
ContractAdvice(Contract contract)

Method Summary

Modifier and Type	Method and Description
void	after(Exchange exchange, Object data) Callback executed after processing a step in the route.
Object	before(Exchange exchange) Callback executed before processing a step in the route.

Methods inherited from class java.lang.Object

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

Constructor Detail

ContractAdvice

public ContractAdvice(Contract contract)

Method Detail

before

public Object before(Exchange exchange)
              throws Exception

Description copied from interface: CamelInternalProcessorAdvice

Callback executed before processing a step in the route.

Specified by:

before in interface CamelInternalProcessorAdvice

Parameters:

exchange - the current exchange

Returns:

any state to keep and provide as data to the CamelInternalProcessorAdvice.after(org.apache.camel.Exchange, Object) method, or use null for no state.

Throws:

Exception - is thrown if error during the call.

after

public void after(Exchange exchange,
                  Object data)
           throws Exception

Description copied from interface: CamelInternalProcessorAdvice

Callback executed after processing a step in the route.

Specified by:

after in interface CamelInternalProcessorAdvice

Parameters:

exchange - the current exchange

data - the state, if any, returned in the CamelInternalProcessorAdvice.before(org.apache.camel.Exchange) method.

Throws:

Exception - is thrown if error during the call.