Top Description Interfaces Classes

module jackson.core

Package com.fasterxml.jackson.core.util

Utility classes used by Jackson Core functionality.

Interface Summary

Modifier and Type	Interface and Description
public interface	Instantiatable<T> Add-on interface used to indicate things that may be "blueprint" objects which can not be used as is, but are used for creating usable per-process (serialization, deserialization) instances, using `createInstance` method.
public interface	JacksonFeature Basic API implemented by Enums used for simple Jackson "features": on/off settings and capabilities exposed as something that can be internally represented as bit sets.
public interface	JsonGeneratorDecorator Simple interface to allow adding decorators around `JsonGenerator`s.
public interface	RecyclerPool< Type of Objects pool recycles P extends RecyclerPool.WithPool<P>> API for object pools that control creation and possible reuse of objects that are costly to create (often things like encoding/decoding buffers).

Class Summary

Modifier and Type	Class and Description
public class	BufferRecycler This is a small utility class, whose main functionality is to allow simple reuse of raw byte/char buffers.
public class	BufferRecyclers Deprecated Since 2.16 recycling aspects are handled via `RecyclerPool`. Helper entity used to control access to simple buffer recycling scheme used for some encoding, decoding tasks.
public class	ByteArrayBuilder Helper class that is similar to `java.io.ByteArrayOutputStream` in usage, but more geared to Jackson use cases internally.
public class	DefaultIndenter Default linefeed-based indenter, used by `DefaultPrettyPrinter` (unless overridden).
public class	DefaultPrettyPrinter Default `PrettyPrinter` implementation that uses 2-space indentation with platform-default linefeeds.
public abstract class	InternalJacksonUtil Internal Use Only.
public class	InternCache Singleton class that adds a simple first-level cache in front of regular String.intern() functionality.
public class	JacksonFeatureSet<F extends JacksonFeature> Container similar to `java.util.EnumSet` meant for storing sets of `JacksonFeature`s (usually `java.lang.Enum`s): main difference being that these sets are immutable.
public class	JsonGeneratorDelegate
public class	JsonParserDelegate Helper class that implements delegation pattern for `JsonParser`, to allow for simple overridability of basic parsing functionality.
public class	JsonParserSequence Helper class that can be used to sequence multiple physical `JsonParser`s to create a single logical sequence of tokens, as a single `JsonParser`.
public class	JsonRecyclerPools Set of `RecyclerPool` implementations to be used by the default JSON-backed `JsonFactory` for recycling `BufferRecycler` containers.
public class	MinimalPrettyPrinter `PrettyPrinter` implementation that adds no indentation, just implements everything necessary for value output to work as expected, and provide simpler extension points to allow for creating simple custom implementations that add specific decoration or overrides.
public class	ReadConstrainedTextBuffer
public class	RequestPayload Container object used to contain optional information on content being parsed, passed to `com.fasterxml.jackson.core.JsonParseException` in case of exception being thrown; this may be useful for caller to display information on failure.
public class	Separators Value class used with some `com.fasterxml.jackson.core.PrettyPrinter` implements
public class	TextBuffer TextBuffer is a class similar to `java.lang.StringBuffer`, with following differences: TextBuffer uses segments character arrays, to avoid having to do additional array copies when array is not big enough. This means that only reallocating that is necessary is done only once: if and when caller wants to access contents in a linear array (char[], String). TextBuffer can also be initialized in "shared mode", in which it will just act as a wrapper to a single char array managed by another object (like parser that owns it) TextBuffer is not synchronized.
pack-priv class	ThreadLocalBufferManager For issue [jackson-core#400] We keep a separate Set of all SoftReferences to BufferRecyclers which are (also) referenced using `ThreadLocals`.
public class	VersionUtil Functionality for supporting exposing of component `Version`s.