# Uses of Package
com.fasterxml.jackson.core.util

- Packages that use com.fasterxml.jackson.core.util
  Package | Description
  --- | ---
  com.fasterxml.jackson.core | Main public API classes of the core streaming JSON processor: most importantly `JsonFactory` used for constructing JSON parser (`JsonParser`) and generator (`JsonGenerator`) instances.
  com.fasterxml.jackson.core.base | Base classes used by concrete Parser and Generator implementations; contain functionality that is not specific to JSON or input abstraction (byte vs char).
  com.fasterxml.jackson.core.filter |
  com.fasterxml.jackson.core.io |
  com.fasterxml.jackson.core.util | Utility classes used by Jackson Core functionality.

- Classes in com.fasterxml.jackson.core.util used by com.fasterxml.jackson.core
  Class and Description
  BufferRecycler This is a small utility class, whose main functionality is to allow simple reuse of raw byte/char buffers.
  ByteArrayBuilder Helper class that is similar to `ByteArrayOutputStream` in usage, but more geared to Jackson use cases internally.
  RequestPayload Container object used to contain optional information on content being parsed, passed to `JsonParseException` in case of exception being thrown; this may be useful for caller to display information on failure.

- Classes in com.fasterxml.jackson.core.util used by com.fasterxml.jackson.core.base
  Class and Description
  ByteArrayBuilder Helper class that is similar to `ByteArrayOutputStream` in usage, but more geared to Jackson use cases internally.
  TextBuffer TextBuffer is a class similar to `StringBuffer`, with following differences: TextBuffer uses segments character arrays, to avoid having to do additional array copies when array is not big enough.

- Classes in com.fasterxml.jackson.core.util used by com.fasterxml.jackson.core.filter
  Class and Description
  JsonGeneratorDelegate
  JsonParserDelegate Helper class that implements delegation pattern for `JsonParser`, to allow for simple overridability of basic parsing functionality.

- Classes in com.fasterxml.jackson.core.util used by com.fasterxml.jackson.core.io
  Class and Description
  BufferRecycler This is a small utility class, whose main functionality is to allow simple reuse of raw byte/char buffers.
  ByteArrayBuilder Helper class that is similar to `ByteArrayOutputStream` in usage, but more geared to Jackson use cases internally.
  TextBuffer TextBuffer is a class similar to `StringBuffer`, with following differences: TextBuffer uses segments character arrays, to avoid having to do additional array copies when array is not big enough.

- Classes in com.fasterxml.jackson.core.util used by com.fasterxml.jackson.core.util
  Class and Description
  BufferRecycler This is a small utility class, whose main functionality is to allow simple reuse of raw byte/char buffers.
  DefaultIndenter Default linefeed-based indenter, used by `DefaultPrettyPrinter` (unless overridden).
  DefaultPrettyPrinter Default `PrettyPrinter` implementation that uses 2-space indentation with platform-default linefeeds.
  DefaultPrettyPrinter.FixedSpaceIndenter This is a very simple indenter that only adds a single space for indentation.
  DefaultPrettyPrinter.Indenter Interface that defines objects that can produce indentation used to separate object entries and array values.
  DefaultPrettyPrinter.NopIndenter Dummy implementation that adds no indentation whatsoever
  Instantiatable 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 `Instantiatable.createInstance()` method.
  InternCache Singleton class that adds a simple first-level cache in front of regular String.intern() functionality.
  JsonParserDelegate Helper class that implements delegation pattern for `JsonParser`, to allow for simple overridability of basic parsing functionality.
  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`.

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