Package org.jdbi.v3.core.interceptor

Class JdbiInterceptionChainHolder<S,T>

java.lang.Object

org.jdbi.v3.core.interceptor.JdbiInterceptionChainHolder<S,T>

Type Parameters:

S - Type of the transformation source.

T - Type of the transformation target.

@Alpha
public final class JdbiInterceptionChainHolder<S,T>
extends Object

An interception chain holder to manage transformation operations.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) final class	JdbiInterceptionChainHolder.ChainInstance

Field Summary

Fields

Modifier and Type	Field	Description
private static final Function<?,?>	DEFAULT_TRANSFORMER
private final Function<S,T>	defaultTransformer
private final List<JdbiInterceptor<S,T>>	interceptors

Constructor Summary

Constructors

Constructor	Description
JdbiInterceptionChainHolder()	Creates a new chain holder.
JdbiInterceptionChainHolder(Function<S,T> defaultTransformer)	Creates a new chain holder with a default interceptor.
JdbiInterceptionChainHolder(JdbiInterceptionChainHolder<S,T> that)

Method Summary

Modifier and Type	Method	Description
void	addFirst(JdbiInterceptor<S,T> interceptor)	Registers a new interceptor at the beginning of the chain.
void	addLast(JdbiInterceptor<S,T> interceptor)	Registers a new interceptor at the end of the chain.
T	process(S source)	Processes a source object and returns a target object.

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_TRANSFORMER

private static final Function<?,?> DEFAULT_TRANSFORMER

interceptors

private final List<JdbiInterceptor<S,T>> interceptors

defaultTransformer

private final Function<S,T> defaultTransformer

Constructor Details

JdbiInterceptionChainHolder

public JdbiInterceptionChainHolder(Function<S,T> defaultTransformer)

Creates a new chain holder with a default interceptor.

Parameters:

defaultTransformer - A default interceptor that is used when no other registered interceptor processes a source object. Must not be null.

JdbiInterceptionChainHolder

public JdbiInterceptionChainHolder()

Creates a new chain holder. Throws UnsupportedOperationException if no registered interceptor processes a source object.

JdbiInterceptionChainHolder

public JdbiInterceptionChainHolder(JdbiInterceptionChainHolder<S,T> that)

Method Details

process

@Nonnull
public T process(@Nullable
 S source)

Processes a source object and returns a target object.

Parameters:

source - A source object.

Returns:

A target object processed by one of the registered JdbiInterceptor instances.

addFirst

public void addFirst(JdbiInterceptor<S,T> interceptor)

Registers a new interceptor at the beginning of the chain. Any subsequent call to process(Object) will use this interceptor before all other already registered interceptors.

Parameters:

interceptor - An object implementing JdbiInterceptor.

addLast

public void addLast(JdbiInterceptor<S,T> interceptor)

Registers a new interceptor at the end of the chain. Any subsequent call to process(Object) will use this interceptor after all other already registered interceptors.

Parameters:

interceptor - An object implementing JdbiInterceptor.