Module org.microbean.loader.jackson

Package org.microbean.loader.jackson

Class JacksonProvider

java.lang.Object

org.microbean.loader.spi.AbstractProvider

org.microbean.loader.spi.AbstractTreeBasedProvider<TreeNode>

org.microbean.loader.jackson.JacksonProvider

All Implemented Interfaces:

Provider

Direct Known Subclasses:

InputStreamJacksonProvider

public abstract class JacksonProvider
extends AbstractTreeBasedProvider<TreeNode>

A partial AbstractTreeBasedProvider implementation backed by Jackson.

Author:

Laird Nelson

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	JacksonProvider()	Creates a new JacksonProvider.
protected	JacksonProvider(Type lowerBound)	Creates a new JacksonProvider.

Method Summary

Modifier and Type	Method	Description
final boolean	absent(TreeNode node)
final TreeNode	get(TreeNode node, int index)
final TreeNode	get(TreeNode node, String name)
final boolean	list(TreeNode node)
final boolean	map(TreeNode node)
final Iterator<String>	names(TreeNode node)
final boolean	nil(TreeNode node)
protected abstract ObjectCodec	objectCodec(Loader<?> requestor, Path<? extends Type> absolutePath)	Returns an ObjectCodec suitable for the combination of the supplied Loader and Path, or null if there is no such ObjectCodec.
protected TreeNode	qualifiers(TreeNode node)
protected BiFunction<? super TreeNode,? super Type,?>	reader(Loader<?> requestor, Path<? extends Type> absolutePath)
final int	size(TreeNode node)

Methods inherited from class org.microbean.loader.spi.AbstractTreeBasedProvider

container, find, path, path, qualifiers, rootNode

Methods inherited from class org.microbean.loader.spi.AbstractProvider

get, lowerBound

Methods inherited from class java.lang.Object

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

Constructor Details

JacksonProvider

protected JacksonProvider()

Creates a new JacksonProvider.

See Also:

• JacksonProvider(Type)

JacksonProvider

protected JacksonProvider(Type lowerBound)

Creates a new JacksonProvider.

Parameters:

lowerBound - the lower type bound of this JacksonProvider implementation; may be null

Method Details

size

public final int size(TreeNode node)

Specified by:

size in class AbstractTreeBasedProvider<TreeNode>

names

public final Iterator<String> names(TreeNode node)

Specified by:

names in class AbstractTreeBasedProvider<TreeNode>

get

public final TreeNode get(TreeNode node,
 String name)

Specified by:

get in class AbstractTreeBasedProvider<TreeNode>

get

public final TreeNode get(TreeNode node,
 int index)

Specified by:

get in class AbstractTreeBasedProvider<TreeNode>

absent

public final boolean absent(TreeNode node)

Specified by:

absent in class AbstractTreeBasedProvider<TreeNode>

nil

public final boolean nil(TreeNode node)

Specified by:

nil in class AbstractTreeBasedProvider<TreeNode>

map

public final boolean map(TreeNode node)

Specified by:

map in class AbstractTreeBasedProvider<TreeNode>

list

public final boolean list(TreeNode node)

Specified by:

list in class AbstractTreeBasedProvider<TreeNode>

qualifiers

protected TreeNode qualifiers(TreeNode node)

Specified by:

qualifiers in class AbstractTreeBasedProvider<TreeNode>

objectCodec

protected abstract ObjectCodec objectCodec(Loader<?> requestor,
 Path<? extends Type> absolutePath)

Returns an ObjectCodec suitable for the combination of the supplied Loader and Path, or null if there is no such ObjectCodec.

This method is called by the AbstractProvider.get(Loader, Path) method in the normal course of events.

Parameters:

requestor - the Loader seeking a Value; must not be null

absolutePath - an absolute Path for which the supplied Loader is seeking a value; must not be null

Returns:

an ObjectCodec suitable for the combination of the supplied Loader and Path, or null

Idempotency:

Implementations of this method must be idempotent, but not necessarily deterministic.

Nullability:

Implementations of this method may return null.

Thread Safety:

Implementations of this method must be safe for concurrent use by multiple threads.

reader

protected BiFunction<? super TreeNode,? super Type,?> reader(Loader<?> requestor,
 Path<? extends Type> absolutePath)

Specified by:

reader in class AbstractTreeBasedProvider<TreeNode>