Package org.carrot2.attrs

Class Attrs

java.lang.Object

org.carrot2.attrs.Attrs

public final class Attrs
extends Object

Static utility methods for converting between AcceptingVisitor and Maps.

See Also:

extract(AcceptingVisitor), populate(AcceptingVisitor, Map), toMap(AcceptingVisitor), fromMap(Class, Map, Function)

Constructor Summary

Constructors

Constructor	Description
Attrs()

Method Summary

Modifier and Type	Method	Description
static Map<String,Object>	extract(AcceptingVisitor instance)	Extracts just the attributes of an instance (no top-level type information is preserved).
static Map<String,Object>	extract(AcceptingVisitor instance, Function<Object,String> classToName)	Extracts just the attributes of an instance (no top-level type information is preserved).
static <E extends AcceptingVisitor> E	fromMap(Class<? extends E> clazz, Map<String,Object> map)	Convert a map to an instance of a class.
static <E extends AcceptingVisitor> E	fromMap(Class<? extends E> clazz, Map<String,Object> map, Function<String,Object> nameToClass)	Convert a map to an instance of a class.
static <E extends AcceptingVisitor> E	populate(E instance, Map<String,Object> map)	Populates a given instance with the values from the map.
static <E extends AcceptingVisitor> E	populate(E instance, Map<String,Object> map, Function<String,Object> nameToClass)	Populates a given instance with the values from the map.
static String	toJson(AcceptingVisitor composite, Function<Object,String> classToName)	Converts an instance (recursively) to JSON.
static String	toJson(AcceptingVisitor composite, ClassNameMapper classNameMapper)	Converts an instance (recursively) to JSON.
static Map<String,Object>	toMap(AcceptingVisitor composite)	Convert an instance to a map.
static Map<String,Object>	toMap(AcceptingVisitor composite, Function<Object,String> classToName)	Convert an instance to a map.

Methods inherited from class java.lang.Object

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

Constructor Detail

Attrs

public Attrs()

Method Detail

toMap

public static Map<String,Object> toMap(AcceptingVisitor composite)

Convert an instance to a map. The output map will contain the type of the instance and can be recreated with fromMap(Class, Map).

This method uses default class name mappings.

See Also:

fromMap(Class, Map)

toMap

public static Map<String,Object> toMap(AcceptingVisitor composite,
                                             Function<Object,String> classToName)

Convert an instance to a map. The output map will contain the type of the instance and can be recreated with fromMap(Class, Map).

Parameters:

classToName - Class to name mapping provider.

See Also:

fromMap(Class, Map, Function)

fromMap

public static <E extends AcceptingVisitor> E fromMap(Class<? extends E> clazz,
                                                     Map<String,Object> map)

Convert a map to an instance of a class.

This method uses default class name mappings.

See Also:

toMap(AcceptingVisitor)

fromMap

public static <E extends AcceptingVisitor> E fromMap(Class<? extends E> clazz,
                                                     Map<String,Object> map,
                                                     Function<String,Object> nameToClass)

Convert a map to an instance of a class.

Parameters:

nameToClass - Name to new class instance supplier.

See Also:

toMap(AcceptingVisitor)

extract

public static Map<String,Object> extract(AcceptingVisitor instance,
                                               Function<Object,String> classToName)

Extracts just the attributes of an instance (no top-level type information is preserved).

Parameters:

classToName - Class to name mapping provider.

extract

public static Map<String,Object> extract(AcceptingVisitor instance)

Extracts just the attributes of an instance (no top-level type information is preserved).

This method uses default class name mappings.

populate

public static <E extends AcceptingVisitor> E populate(E instance,
                                                      Map<String,Object> map)

Populates a given instance with the values from the map.

This method uses default class name mappings.

See Also:

extract(AcceptingVisitor)

populate

public static <E extends AcceptingVisitor> E populate(E instance,
                                                      Map<String,Object> map,
                                                      Function<String,Object> nameToClass)

Populates a given instance with the values from the map.

Parameters:

nameToClass - Name to new class instance supplier.

See Also:

extract(AcceptingVisitor, Function)

toJson

public static String toJson(AcceptingVisitor composite,
                            ClassNameMapper classNameMapper)

Converts an instance (recursively) to JSON.

This method uses default class name mappings.

toJson

public static String toJson(AcceptingVisitor composite,
                            Function<Object,String> classToName)

Converts an instance (recursively) to JSON.

Parameters:

classToName - Class to name mapping provider.