net.sf.mmm.util.lang.base

Class AbstractDatatypeDetector

java.lang.Object

net.sf.mmm.util.component.base.AbstractComponent

net.sf.mmm.util.component.base.AbstractLoggableComponent

net.sf.mmm.util.lang.base.AbstractDatatypeDetector

All Implemented Interfaces:

DatatypeDetector

Direct Known Subclasses:

DatatypeDetectorImpl

public abstract class AbstractDatatypeDetector
extends AbstractLoggableComponent
implements DatatypeDetector

This is the abstract base implementation of DatatypeDetector.

Since:

4.0.0

Author:

Joerg Hohwiller (hohwille at users.sourceforge.net)

Field Summary

Fields

Modifier and Type	Field and Description
private Set<String>	customDatatypeSet
private Set<String>	standardDatatypeSet

Fields inherited from interface net.sf.mmm.util.lang.api.DatatypeDetector

CDI_NAME

Constructor Summary

Constructors

Constructor and Description
AbstractDatatypeDetector() The constructor.

Method Summary

Modifier and Type	Method and Description
boolean	isDatatype(Class<?> type) This method determines if the given Class reflects an (immutable) Datatype.
boolean	isJavaStandardDatatype(Class<?> type) This method determines if the given Class reflects a Java standard Datatype provided by the JDK.
protected void	registerCustomDatatype(Class<?> datatype) This method registers a custom Datatype so it is recognized by isDatatype(Class).
protected void	registerCustomDatatype(String fullQualifiedDatatypeName) Like registerCustomDatatype(Class) but via fully qualified name.
protected void	registerDefaultDatatypes() Registers the default datatypes.
protected void	registerJavaTimeDatatypes() Called from registerDefaultDatatypes() to add JSR310 datatypes.
protected void	registerJavaUtilDateCalendarDatatypes() Called from registerDefaultDatatypes() to add legacy Date and Calendar datatypes.
protected void	registerNumberDatatypes() Called from registerDefaultDatatypes() to add Number based datatypes.
protected void	registerStandardDatatype(Class<?> datatype) This method registers a Java standard Datatype so it is recognized by isJavaStandardDatatype(Class).
protected void	registerStandardDatatype(String fullQualifiedDatatypeName) Like registerStandardDatatype(Class) but via fully qualified name.
void	setExtraDatatypes(List<String> datatypeList) Adds a list of additional datatypes to register.

Methods inherited from class net.sf.mmm.util.component.base.AbstractLoggableComponent

createLogger, doInitialize, getLogger

Methods inherited from class net.sf.mmm.util.component.base.AbstractComponent

doInitialized, getInitializationState, initialize

Methods inherited from class java.lang.Object

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

Field Detail

customDatatypeSet

private final Set<String> customDatatypeSet

See Also:

isDatatype(Class)

standardDatatypeSet

private final Set<String> standardDatatypeSet

See Also:

isDatatype(Class)

Constructor Detail

AbstractDatatypeDetector

public AbstractDatatypeDetector()

The constructor.

Method Detail

registerCustomDatatype

protected void registerCustomDatatype(Class<?> datatype)

This method registers a custom Datatype so it is recognized by isDatatype(Class).
NOTE:
There is no need in registering Enum datatypes as they are detected as such automatically.

Parameters:

datatype - is the Datatype to register.

registerCustomDatatype

protected void registerCustomDatatype(String fullQualifiedDatatypeName)

Like registerCustomDatatype(Class) but via fully qualified name. Can be used to prevent compile-time dependencies on datatype.

Parameters:

fullQualifiedDatatypeName - is the fully qualified name of the Datatype to register.

See Also:

registerCustomDatatype(Class)

registerStandardDatatype

protected void registerStandardDatatype(Class<?> datatype)

This method registers a Java standard Datatype so it is recognized by isJavaStandardDatatype(Class).

Parameters:

datatype - is the Datatype to register.

registerStandardDatatype

protected void registerStandardDatatype(String fullQualifiedDatatypeName)

Like registerStandardDatatype(Class) but via fully qualified name. Can be used to prevent compile-time dependencies on datatype.

Parameters:

fullQualifiedDatatypeName - is the fully qualified name of the Datatype to register.

See Also:

registerStandardDatatype(Class)

registerDefaultDatatypes

protected void registerDefaultDatatypes()

Registers the default datatypes.

registerNumberDatatypes

protected void registerNumberDatatypes()

Called from registerDefaultDatatypes() to add Number based datatypes. Can also be called standalone or overridden for customization.

registerJavaUtilDateCalendarDatatypes

protected void registerJavaUtilDateCalendarDatatypes()

Called from registerDefaultDatatypes() to add legacy Date and Calendar datatypes. Can also be called standalone or overridden for customization.

registerJavaTimeDatatypes

protected void registerJavaTimeDatatypes()

Called from registerDefaultDatatypes() to add JSR310 datatypes. Can also be called standalone or overridden for customization.

isDatatype

public boolean isDatatype(Class<?> type)

This method determines if the given Class reflects an (immutable) Datatype. It will return true if the given value is a String, Boolean, Character, anything derived from Number, an Enum, an instance of Datatype, a Date (even though not immutable) or anything similar.

Specified by:

isDatatype in interface DatatypeDetector

Parameters:

type - is the Class to check.

Returns:

true if the given Class represents a Datatype, false otherwise.

isJavaStandardDatatype

public boolean isJavaStandardDatatype(Class<?> type)

This method determines if the given Class reflects a Java standard Datatype provided by the JDK. This is any primitive type or any of Integer, Long, Double, Float, Byte, Short, Boolean, String, Character, BigInteger, BigDecimal, Date, Calendar, LocalDate, LocalTime, LocalDateTime, Instant, OffsetDateTime, OffsetTime, Duration, ZonedDateTime, YearMonth, MonthDay, Year, Period, ZoneOffset.

Specified by:

isJavaStandardDatatype in interface DatatypeDetector

Parameters:

type - is the Class to check.

Returns:

true if the given Class represents a Java standard Datatype, false otherwise.

setExtraDatatypes

public void setExtraDatatypes(List<String> datatypeList)

Adds a list of additional datatypes to register. E.g. for easy spring configuration and custom extension.

Parameters:

datatypeList - is the List of fully qualified names of additional Datatypes to register.