ContentReference (jackson-core 2.13.2)

java.lang.Object
- com.fasterxml.jackson.core.io.ContentReference

All Implemented Interfaces:

Serializable
```
public class ContentReference
extends Object
implements Serializable
```
Abstraction that encloses information about content being processed -- input source or output target, streaming or not -- for the purpose of including pertinent information in location (see JsonLocation) objections, most commonly to be printed out as part of Exception messages.

Since:

2.13

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`protected boolean`	`_isContentTextual` Marker flag to indicate whether included content is textual or not: this is taken to mean, by default, that a snippet of content may be displayed for exception messages.
`protected int`	`_length` For static content, indicates length of content in the static array.
`protected int`	`_offset` For static content, indicates offset from the beginning of static array.
`protected Object`	`_rawContent` Reference to the actual underlying content.
`static int`	`DEFAULT_MAX_CONTENT_SNIPPET` Include at most first 500 characters/bytes from contents; should be enough to give context, but not cause unfortunate side effects in things like logs.
`protected static ContentReference`	`UNKNOWN_CONTENT` Constant that may be used when source/target content is not known (or not exposed).

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`ContentReference(boolean isContentTextual, Object rawContent)`
`protected`	`ContentReference(boolean isContentTextual, Object rawContent, int offset, int length)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected int`	`_append(StringBuilder sb, String content)`
`protected boolean`	`_appendEscaped(StringBuilder sb, int ctrlChar)`
`protected String`	`_truncate(byte[] b, int[] offsets, int maxSnippetLen)`
`protected String`	`_truncate(char[] cs, int[] offsets, int maxSnippetLen)`
`protected String`	`_truncate(CharSequence cs, int[] offsets, int maxSnippetLen)`
`protected void`	`_truncateOffsets(int[] offsets, int actualLength)`
`StringBuilder`	`appendSourceDescription(StringBuilder sb)` Method for appending a "source description" when content represented by this reference is read.
`String`	`buildSourceDescription()` Method for constructing a "source description" when content represented by this reference is read.
`static ContentReference`	`construct(boolean isContentTextual, Object rawContent)`
`static ContentReference`	`construct(boolean isContentTextual, Object rawContent, int offset, int length)`
`int`	`contentLength()`
`int`	`contentOffset()`
`boolean`	`equals(Object other)`
`Object`	`getRawContent()`
`int`	`hashCode()`
`boolean`	`hasTextualContent()`
`protected int`	`maxContentSnippetLength()` Internal accessor, overridable, used for checking length (in units in which content is counted, either bytes or chars) to use for truncation (so as not to include full content for humongous sources or targets)
`static ContentReference`	`rawReference(boolean isContentTextual, Object rawContent)` Factory method for legacy code to use for constructing instances to content about which only minimal amount of information is available.
`static ContentReference`	`rawReference(Object rawContent)`
`protected Object`	`readResolve()`
`static ContentReference`	`unknown()` Accessor for getting a placeholder for cases where actual content is not known (or is not something that system wants to expose).

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - UNKNOWN_CONTENT
```
protected static final ContentReference UNKNOWN_CONTENT
```
    Constant that may be used when source/target content is not known (or not exposed).
    NOTE: As of 2.13 assume to contain Binary content, meaning that no content snippets will be included.
  - DEFAULT_MAX_CONTENT_SNIPPET
```
public static final int DEFAULT_MAX_CONTENT_SNIPPET
```
    Include at most first 500 characters/bytes from contents; should be enough to give context, but not cause unfortunate side effects in things like logs.
    
    Since:
    
    2.9
    
    See Also:
    
    Constant Field Values
  - _rawContent
```
protected final transient Object _rawContent
```
    Reference to the actual underlying content.
  - _offset
```
protected final int _offset
```
    For static content, indicates offset from the beginning of static array. -1 if not in use.
  - _length
```
protected final int _length
```
    For static content, indicates length of content in the static array. -1 if not in use.
  - _isContentTextual
```
protected final boolean _isContentTextual
```
    Marker flag to indicate whether included content is textual or not: this is taken to mean, by default, that a snippet of content may be displayed for exception messages.
- Constructor Detail
  - ContentReference
```
protected ContentReference(boolean isContentTextual,
                           Object rawContent)
```
  - ContentReference
```
protected ContentReference(boolean isContentTextual,
                           Object rawContent,
                           int offset,
                           int length)
```
- Method Detail
  - unknown
```
public static ContentReference unknown()
```
    Accessor for getting a placeholder for cases where actual content is not known (or is not something that system wants to expose).
    
    Returns:
    
    Placeholder "unknown" (or "empty") instance to use instead of null reference
  - construct
```
public static ContentReference construct(boolean isContentTextual,
                                         Object rawContent)
```
  - construct
```
public static ContentReference construct(boolean isContentTextual,
                                         Object rawContent,
                                         int offset,
                                         int length)
```
  - rawReference
```
public static ContentReference rawReference(boolean isContentTextual,
                                            Object rawContent)
```
    Factory method for legacy code to use for constructing instances to content about which only minimal amount of information is available. Assumed not to contain textual content (no snippet displayed).
    
    Parameters:
    
    isContentTextual - Is raw content assumed to have textual content (true) or binary (false)
    
    rawContent - Underlying raw content access
    
    Returns:
    
    Instance with minimal information about content (basically just raw content reference without offsets
  - rawReference
```
public static ContentReference rawReference(Object rawContent)
```
  - readResolve
```
protected Object readResolve()
```
  - hasTextualContent
```
public boolean hasTextualContent()
```
  - getRawContent
```
public Object getRawContent()
```
  - contentOffset
```
public int contentOffset()
```
  - contentLength
```
public int contentLength()
```
  - maxContentSnippetLength
```
protected int maxContentSnippetLength()
```
    Internal accessor, overridable, used for checking length (in units in which content is counted, either bytes or chars) to use for truncation (so as not to include full content for humongous sources or targets)
    
    Returns:
    
    Maximum content snippet to include before truncating
  - buildSourceDescription
```
public String buildSourceDescription()
```
    Method for constructing a "source description" when content represented by this reference is read.
    
    Returns:
    
    Description constructed
  - appendSourceDescription
```
public StringBuilder appendSourceDescription(StringBuilder sb)
```
    Method for appending a "source description" when content represented by this reference is read.
    
    Parameters:
    
    sb - StringBuilder to append description to
    
    Returns:
    
    StringBuilder passed as argument (for call chaining)
  - _truncate
```
protected String _truncate(CharSequence cs,
                           int[] offsets,
                           int maxSnippetLen)
```
  - _truncate
```
protected String _truncate(char[] cs,
                           int[] offsets,
                           int maxSnippetLen)
```
  - _truncate
```
protected String _truncate(byte[] b,
                           int[] offsets,
                           int maxSnippetLen)
```
  - _truncateOffsets
```
protected void _truncateOffsets(int[] offsets,
                                int actualLength)
```
  - _append
```
protected int _append(StringBuilder sb,
                      String content)
```
  - _appendEscaped
```
protected boolean _appendEscaped(StringBuilder sb,
                                 int ctrlChar)
```
  - equals
```
public boolean equals(Object other)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object

Class ContentReference

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

UNKNOWN_CONTENT

DEFAULT_MAX_CONTENT_SNIPPET

_rawContent

_offset

_length

_isContentTextual

Constructor Detail

ContentReference

ContentReference

Method Detail

unknown

construct

construct

rawReference

rawReference

readResolve

hasTextualContent

getRawContent

contentOffset

contentLength

maxContentSnippetLength

buildSourceDescription

appendSourceDescription

_truncate

_truncate

_truncate

_truncateOffsets

_append

_appendEscaped

equals

hashCode