org.hibernate.search.bridge.util.impl

Class BridgeAdaptorUtils

java.lang.Object

org.hibernate.search.bridge.util.impl.BridgeAdaptorUtils

public final class BridgeAdaptorUtils
extends Object

Utilities allowing to take into account bridge adaptors when detecting implemented tagging interface (e.g. IgnoreAnalyzerBridge) or when trying to make use of specific field interfaces (e.g. TwoWayStringBridge).

Author:

Yoann Rodiere

Method Summary

Modifier and Type	Method and Description
static <T> T	unwrapAdaptorAndContainer(Object bridge, Class<T> clazz) Return a bridge of the specified type extracted from the given bridge, going through adaptors and container bridges as necessary.
static <T> T	unwrapAdaptorOnly(Object bridge, Class<T> clazz) Return a bridge of the specified type extracted from the given bridge, going through adaptors as necessary, never going through container bridges.

Methods inherited from class java.lang.Object

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

Method Detail

unwrapAdaptorAndContainer

public static <T> T unwrapAdaptorAndContainer(Object bridge,
                                              Class<T> clazz)

Return a bridge of the specified type extracted from the given bridge, going through adaptors and container bridges as necessary.

The returned object may be the adaptor itself, or its delegate, or a delegate of its delegate, and so on, but it may also be a element bridge of the given bridge if the given bridge is a ContainerBridge, or an element bridge of a delegate of the given bridge, and so on.

If neither the adaptor nor one of its delegates can provide an instance of the specified type, null is returned.

Parameters:

bridge - The bridge to use as a starting point.

clazz - The expected bridge type.

Returns:

A unwrapped bridge implementing the expected bridge type, or null if none could be found.

unwrapAdaptorOnly

public static <T> T unwrapAdaptorOnly(Object bridge,
                                      Class<T> clazz)

Return a bridge of the specified type extracted from the given bridge, going through adaptors as necessary, never going through container bridges.

The returned object may be the adaptor itself, or its delegate, or a delegate of its delegate, and so on.

If neither the adaptor or one of its delegates is an instance of the specified type, null is returned.

Parameters:

bridge - The bridge to use as a starting point.

clazz - The expected bridge type.

Returns:

A unwrapped bridge implementing the expected bridge type, or null if none could be found.