/** Method that calculates bit set (flags) of all features that are enabled by default. */
public static int collectDefaults() {
int flags = 0;
for (Feature f : values()) {
if (f.enabledByDefault()) {
flags |= f.getMask();
}
}
return flags;
}
public class Hibernate4Module extends Module {
/** Enumeration that defines all toggleable features this module */
public enum Feature {
/**
* Whether lazy-loaded object should be forced to be loaded and then serialized (true); or
* serialized as nulls (false).
*
* <p>Default value is false.
*/
FORCE_LAZY_LOADING(false),
/**
* Whether {@link javax.persistence.Transient} annotation should be checked or not; if true,
* will consider @Transient to mean that property is to be ignored; if false annotation will
* have no effect.
*
* <p>Default value is true.
*/
USE_TRANSIENT_ANNOTATION(true),
/**
* If FORCE_LAZY_LOADING is false lazy-loaded object should be serialized as map
* IdentifierName=>IdentifierValue instead of null (true); or serialized as nulls (false)
*
* <p>Default value is false
*/
SERIALIZE_IDENTIFIER_FOR_LAZY_NOT_LOADED_OBJECTS(false);
final boolean _defaultState;
final int _mask;
/** Method that calculates bit set (flags) of all features that are enabled by default. */
public static int collectDefaults() {
int flags = 0;
for (Feature f : values()) {
if (f.enabledByDefault()) {
flags |= f.getMask();
}
}
return flags;
}
private Feature(boolean defaultState) {
_defaultState = defaultState;
_mask = (1 << ordinal());
}
public boolean enabledByDefault() {
return _defaultState;
}
public int getMask() {
return _mask;
}
}
protected static final int DEFAULT_FEATURES = Feature.collectDefaults();
/** Bit flag composed of bits that indicate which {@link Feature}s are enabled. */
protected int _moduleFeatures = DEFAULT_FEATURES;
/** Hibernate mapping. */
protected final Mapping _mapping;
/*
/**********************************************************************
/* Life-cycle
/**********************************************************************
*/
public Hibernate4Module() {
this(null);
}
public Hibernate4Module(Mapping mapping) {
_mapping = mapping;
}
@Override
public String getModuleName() {
return "jackson-datatype-hibernate";
}
@Override
public Version version() {
return ModuleVersion.instance.version();
}
@Override
public void setupModule(SetupContext context) {
/* First, append annotation introspector (no need to override, esp.
* as we just implement couple of methods)
*/
// Then add serializers we need
AnnotationIntrospector ai = annotationIntrospector();
if (ai != null) {
context.appendAnnotationIntrospector(ai);
}
boolean forceLoading = isEnabled(Feature.FORCE_LAZY_LOADING);
context.addSerializers(
new HibernateSerializers(
forceLoading,
isEnabled(Feature.SERIALIZE_IDENTIFIER_FOR_LAZY_NOT_LOADED_OBJECTS),
_mapping));
context.addBeanSerializerModifier(new HibernateSerializerModifier(forceLoading));
}
/**
* Method called during {@link #setupModule}, to create {@link AnnotationIntrospector} to register
* along with module. If null is returned, no introspector is added.
*/
protected AnnotationIntrospector annotationIntrospector() {
HibernateAnnotationIntrospector ai = new HibernateAnnotationIntrospector();
ai.setUseTransient(isEnabled(Feature.USE_TRANSIENT_ANNOTATION));
return ai;
}
/*
/**********************************************************************
/* Extended API, configuration
/**********************************************************************
*/
public Hibernate4Module enable(Feature f) {
_moduleFeatures |= f.getMask();
return this;
}
public Hibernate4Module disable(Feature f) {
_moduleFeatures &= ~f.getMask();
return this;
}
public final boolean isEnabled(Feature f) {
return (_moduleFeatures & f.getMask()) != 0;
}
public Hibernate4Module configure(Feature f, boolean state) {
if (state) {
enable(f);
} else {
disable(f);
}
return this;
}
}
public Hibernate4Module disable(Feature f) {
_moduleFeatures &= ~f.getMask();
return this;
}
public final boolean isEnabled(Feature f) {
return (_moduleFeatures & f.getMask()) != 0;
}
public Hibernate4Module enable(Feature f) {
_moduleFeatures |= f.getMask();
return this;
}