Package org.apache.sling.api.wrappers

Class DeepReadValueMapDecorator

java.lang.Object

org.apache.sling.api.wrappers.ValueMapDecorator

org.apache.sling.api.wrappers.DeepReadValueMapDecorator

All Implemented Interfaces:

Map<String,Object>, ValueMap

Direct Known Subclasses:

DeepReadModifiableValueMapDecorator

public class DeepReadValueMapDecorator
extends ValueMapDecorator

A value map wrapper which implements deep reading of properties based on the resource tree.

Since:

2.5 (Sling API Bundle 2.7.0)

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K extends Object,V extends Object>

Field Summary

Fields inherited from interface org.apache.sling.api.resource.ValueMap

EMPTY

Constructor Summary

Constructors

Constructor	Description
DeepReadValueMapDecorator(Resource resource, ValueMap base)

Method Summary

Modifier and Type	Method	Description
boolean	containsKey(Object key)
<T> T	get(@NotNull String name, @NotNull Class<T> type)	Get a named property and convert it into the given type.
<T> T	get(@NotNull String name, T defaultValue)	Get a named property and convert it into the given type.
Object	get(Object key)

Methods inherited from class org.apache.sling.api.wrappers.ValueMapDecorator

clear, containsValue, entrySet, equals, hashCode, isEmpty, keySet, put, putAll, remove, size, toString, values

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Details

DeepReadValueMapDecorator

public DeepReadValueMapDecorator(Resource resource,
 ValueMap base)

Method Details

get

public <T> T get(@NotNull
 @NotNull String name,
 @NotNull
 @NotNull Class<T> type)

Description copied from class: ValueMapDecorator

Get a named property and convert it into the given type. This method does not support conversion into a primitive type or an array of a primitive type. It should return null in this case.

Specified by:

get in interface ValueMap

Overrides:

get in class ValueMapDecorator

Type Parameters:

T - The class of the type

Parameters:

name - The name of the property

type - The class of the type

Returns:

Return named value converted to type T or null if non existing or can't be converted.

See Also:

• ValueMap.get(java.lang.String, java.lang.Class)

get

@NotNull
public <T> T get(@NotNull
 @NotNull String name,
 @NotNull
 T defaultValue)

Description copied from class: ValueMapDecorator

Get a named property and convert it into the given type. This method does not support conversion into a primitive type or an array of a primitive type. It should return the default value in this case.

Implementation hint: In the past it was allowed to call this with a 2nd parameter being null. Therefore all implementations should internally call Map.get(Object) when the 2nd parameter has value null.

Specified by:

get in interface ValueMap

Overrides:

get in class ValueMapDecorator

Type Parameters:

T - The expected type

Parameters:

name - The name of the property

defaultValue - The default value to use if the named property does not exist or cannot be converted to the requested type. The default value is also used to define the type to convert the value to. Must not be null. If you want to return null by default rather rely on ValueMap.get(String, Class).

Returns:

Return named value converted to type T or the default value if non existing or can't be converted.

See Also:

• ValueMap.get(java.lang.String, java.lang.Object)

containsKey

public boolean containsKey(Object key)

Description copied from class: ValueMapDecorator

Specified by:

containsKey in interface Map<String,Object>

Overrides:

containsKey in class ValueMapDecorator

See Also:

• ValueMapDecorator.containsKey(java.lang.Object)

get

public Object get(Object key)

Description copied from class: ValueMapDecorator

Specified by:

get in interface Map<String,Object>

Overrides:

get in class ValueMapDecorator

See Also:

• ValueMapDecorator.get(java.lang.Object)