JsonParserBase (jackson-core 2.18.1)

java.lang.Object
- com.fasterxml.jackson.core.JsonParser
- - com.fasterxml.jackson.core.base.ParserMinimalBase
  - - com.fasterxml.jackson.core.base.ParserBase
    - - com.fasterxml.jackson.core.json.JsonParserBase

All Implemented Interfaces:

Versioned, Closeable, AutoCloseable

Direct Known Subclasses:

NonBlockingJsonParserBase, ReaderBasedJsonParser, UTF8DataInputJsonParser, UTF8StreamJsonParser
```
public abstract class JsonParserBase
extends ParserBase
```
Another intermediate base class, only used by actual JSON-backed parser implementations.

Since:

2.17

Nested Class Summary
- Nested classes/interfaces inherited from class com.fasterxml.jackson.core.JsonParser
  JsonParser.Feature, JsonParser.NumberType, JsonParser.NumberTypeFP

Field Summary

Fields
Modifier and Type	Field and Description
`protected ObjectCodec`	`_objectCodec` Codec used for data binding when (if) requested; typically full `ObjectMapper`, but that abstract is not part of core package.
`protected static int`	`FEAT_MASK_ALLOW_JAVA_COMMENTS`
`protected static int`	`FEAT_MASK_ALLOW_MISSING`
`protected static int`	`FEAT_MASK_ALLOW_SINGLE_QUOTES`
`protected static int`	`FEAT_MASK_ALLOW_UNQUOTED_NAMES`
`protected static int`	`FEAT_MASK_ALLOW_YAML_COMMENTS`
`protected static int`	`FEAT_MASK_LEADING_ZEROS`
`protected static int`	`FEAT_MASK_NON_NUM_NUMBERS`
`protected static int`	`FEAT_MASK_TRAILING_COMMA`
`protected static int[]`	`INPUT_CODES_LATIN1`
`protected static int[]`	`INPUT_CODES_UTF8`

Fields inherited from class com.fasterxml.jackson.core.base.ParserBase
_binaryValue, _byteArrayBuilder, _closed, _currInputProcessed, _currInputRow, _currInputRowStart, _expLength, _fractLength, _inputEnd, _inputPtr, _intLength, _ioContext, _nameCopied, _nameCopyBuffer, _nextToken, _numberBigDecimal, _numberBigInt, _numberDouble, _numberFloat, _numberInt, _numberIsNaN, _numberLong, _numberNegative, _numberString, _numTypesValid, _parsingContext, _textBuffer, _tokenInputCol, _tokenInputRow, _tokenInputTotal, JSON_READ_CAPABILITIES

Fields inherited from class com.fasterxml.jackson.core.base.ParserMinimalBase
_currToken, _lastClearedToken, _streamReadConstraints, _tokenCount, _trackMaxTokenCount, BD_MAX_INT, BD_MAX_LONG, BD_MIN_INT, BD_MIN_LONG, BI_MAX_INT, BI_MAX_LONG, BI_MIN_INT, BI_MIN_LONG, CHAR_NULL, INT_0, INT_9, INT_APOS, INT_ASTERISK, INT_BACKSLASH, INT_COLON, INT_COMMA, INT_CR, INT_e, INT_E, INT_HASH, INT_LBRACKET, INT_LCURLY, INT_LF, INT_MINUS, INT_PERIOD, INT_PLUS, INT_QUOTE, INT_RBRACKET, INT_RCURLY, INT_SLASH, INT_SPACE, INT_TAB, MAX_ERROR_TOKEN_LENGTH, MAX_INT_D, MAX_INT_L, MAX_LONG_D, MIN_INT_D, MIN_INT_L, MIN_LONG_D, NO_BYTES, NO_INTS, NR_BIGDECIMAL, NR_BIGINT, NR_DOUBLE, NR_FLOAT, NR_INT, NR_LONG, NR_UNKNOWN

Fields inherited from class com.fasterxml.jackson.core.JsonParser
_features, _requestPayload, DEFAULT_READ_CAPABILITIES

Constructor Summary

Constructors
Modifier Constructor and Description

protected JsonParserBase(IOContext ioCtxt, int features, ObjectCodec codec)

Constructors
Modifier	Constructor and Description
`protected`	`JsonParserBase(IOContext ioCtxt, int features, ObjectCodec codec)`

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`protected abstract JsonLocation`	`_currentLocationMinusOne()` Factory method used to provide location for cases where we must read and consume a single "wrong" character (to possibly allow error recovery), but need to report accurate location for that character: if so, the current location is past location we want, and location we want will be "one location earlier".
`abstract JsonLocation`	`currentLocation()` Method that returns location of the last processed input unit (character or byte) from the input; usually for error reporting purposes.
`abstract JsonLocation`	`currentTokenLocation()` Method that return the starting location of the current (most recently returned) token; that is, the position of the first input unit (character or byte) from input that starts the current token.
`ObjectCodec`	`getCodec()` Accessor for `ObjectCodec` associated with this parser, if any.
`JsonLocation`	`getCurrentLocation()` Deprecated.
`JsonParser.NumberTypeFP`	`getNumberTypeFP()` JSON format does not have native information on "correct" floating-point type to use, unlike some formats (most binary formats), so it needs to indicate this as `JsonParser.NumberTypeFP.UNKNOWN`.
`JacksonFeatureSet<StreamReadCapability>`	`getReadCapabilities()` Accessor for getting metadata on capabilities of this parser, based on underlying data format being read (directly or indirectly).
`JsonLocation`	`getTokenLocation()` Deprecated.
`void`	`setCodec(ObjectCodec c)` Setter that allows defining `ObjectCodec` associated with this parser, if any.

Methods inherited from class com.fasterxml.jackson.core.base.ParserBase
_checkStdFeatureChanges, _closeInput, _contentReference, _contentReferenceRedacted, _convertBigDecimalToBigInteger, _decodeBase64Escape, _decodeBase64Escape, _decodeEscaped, _eofAsNextChar, _finishString, _getBigDecimal, _getBigInteger, _getByteArrayBuilder, _getNumberDouble, _getNumberFloat, _getSourceReference, _growNameDecodeBuffer, _handleBase64MissingPadding, _handleEOF, _handleUnrecognizedCharacterEscape, _parseIntValue, _parseNumericValue, _releaseBuffers, _reportMismatchedEndMarker, _reportTooLongIntegral, _throwUnquotedSpace, _validJsonTokenList, _validJsonValueList, assignCurrentValue, close, convertNumberToBigDecimal, convertNumberToBigInteger, convertNumberToDouble, convertNumberToFloat, convertNumberToInt, convertNumberToLong, createChildArrayContext, createChildObjectContext, currentValue, disable, enable, getBigIntegerValue, getBinaryValue, getCurrentName, getDecimalValue, getDoubleValue, getFloatValue, getIntValue, getLongValue, getNumberType, getNumberValue, getNumberValueDeferred, getNumberValueExact, getParsingContext, getTokenCharacterOffset, getTokenColumnNr, getTokenLineNr, growArrayBy, hasTextCharacters, isClosed, isNaN, loadMore, loadMoreGuaranteed, overrideCurrentName, overrideStdFeatures, reportInvalidBase64Char, reportInvalidBase64Char, reset, resetAsNaN, resetFloat, resetInt, setFeatureMask, version

Methods inherited from class com.fasterxml.jackson.core.base.ParserMinimalBase
_ascii, _asciiBytes, _constructError, _decodeBase64, _getCharDesc, _hasTextualNull, _longIntegerDesc, _longNumberDesc, _nullSafeUpdateToken, _reportError, _reportError, _reportError, _reportInputCoercion, _reportInvalidEOF, _reportInvalidEOF, _reportInvalidEOFInValue, _reportMissingRootWS, _reportUnexpectedChar, _reportUnexpectedNumberChar, _throwInternal, _throwInternalReturnAny, _throwInvalidSpace, _updateToken, _updateTokenToNA, _updateTokenToNull, _wrapError, clearCurrentToken, currentToken, currentTokenCount, currentTokenId, getCurrentToken, getCurrentTokenId, getLastClearedToken, getText, getTextCharacters, getTextLength, getTextOffset, getValueAsBoolean, getValueAsDouble, getValueAsInt, getValueAsInt, getValueAsLong, getValueAsLong, getValueAsString, getValueAsString, hasCurrentToken, hasToken, hasTokenId, isExpectedNumberIntToken, isExpectedStartArrayToken, isExpectedStartObjectToken, nextToken, nextValue, reportInvalidNumber, reportOverflowInt, reportOverflowInt, reportOverflowInt, reportOverflowLong, reportOverflowLong, reportOverflowLong, reportUnexpectedNumberChar, skipChildren, streamReadConstraints

Methods inherited from class com.fasterxml.jackson.core.JsonParser
_codec, _constructError, _constructReadException, _constructReadException, _constructReadException, _constructReadException, _constructReadException, _constructReadException, _reportUnsupportedOperation, canParseAsync, canReadObjectId, canReadTypeId, canUseSchema, configure, currentName, finishToken, getBinaryValue, getBooleanValue, getByteValue, getCurrentValue, getEmbeddedObject, getFeatureMask, getFormatFeatures, getInputSource, getNonBlockingInputFeeder, getObjectId, getSchema, getShortValue, getText, getTypeId, getValueAsBoolean, getValueAsDouble, isEnabled, isEnabled, nextBooleanValue, nextFieldName, nextFieldName, nextIntValue, nextLongValue, nextTextValue, overrideFormatFeatures, readBinaryValue, readBinaryValue, readValueAs, readValueAs, readValueAsTree, readValuesAs, readValuesAs, releaseBuffered, releaseBuffered, requiresCustomCodec, setCurrentValue, setRequestPayloadOnError, setRequestPayloadOnError, setRequestPayloadOnError, setSchema

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

- Field Detail
  - FEAT_MASK_TRAILING_COMMA
```
protected static final int FEAT_MASK_TRAILING_COMMA
```
  - FEAT_MASK_LEADING_ZEROS
```
protected static final int FEAT_MASK_LEADING_ZEROS
```
  - FEAT_MASK_NON_NUM_NUMBERS
```
protected static final int FEAT_MASK_NON_NUM_NUMBERS
```
  - FEAT_MASK_ALLOW_MISSING
```
protected static final int FEAT_MASK_ALLOW_MISSING
```
  - FEAT_MASK_ALLOW_SINGLE_QUOTES
```
protected static final int FEAT_MASK_ALLOW_SINGLE_QUOTES
```
  - FEAT_MASK_ALLOW_UNQUOTED_NAMES
```
protected static final int FEAT_MASK_ALLOW_UNQUOTED_NAMES
```
  - FEAT_MASK_ALLOW_JAVA_COMMENTS
```
protected static final int FEAT_MASK_ALLOW_JAVA_COMMENTS
```
  - FEAT_MASK_ALLOW_YAML_COMMENTS
```
protected static final int FEAT_MASK_ALLOW_YAML_COMMENTS
```
  - INPUT_CODES_LATIN1
```
protected static final int[] INPUT_CODES_LATIN1
```
  - INPUT_CODES_UTF8
```
protected static final int[] INPUT_CODES_UTF8
```
  - _objectCodec
```
protected ObjectCodec _objectCodec
```
    Codec used for data binding when (if) requested; typically full ObjectMapper, but that abstract is not part of core package.
- Constructor Detail
  - JsonParserBase
```
protected JsonParserBase(IOContext ioCtxt,
                         int features,
                         ObjectCodec codec)
```
- Method Detail
  - getCodec
```
public ObjectCodec getCodec()
```
    Description copied from class: JsonParser
    
    Accessor for ObjectCodec associated with this parser, if any. Codec is used by JsonParser.readValueAs(Class) method (and its variants).
    
    Specified by:
    
    getCodec in class JsonParser
    
    Returns:
    
    Codec assigned to this parser, if any; null if none
  - setCodec
```
public void setCodec(ObjectCodec c)
```
    Description copied from class: JsonParser
    
    Setter that allows defining ObjectCodec associated with this parser, if any. Codec is used by JsonParser.readValueAs(Class) method (and its variants).
    
    Specified by:
    
    setCodec in class JsonParser
    
    Parameters:
    
    c - Codec to assign, if any; null if none
  - getReadCapabilities
```
public final JacksonFeatureSet<StreamReadCapability> getReadCapabilities()
```
    Description copied from class: JsonParser
    
    Accessor for getting metadata on capabilities of this parser, based on underlying data format being read (directly or indirectly).
    
    Overrides:
    
    getReadCapabilities in class JsonParser
    
    Returns:
    
    Set of read capabilities for content to read via this parser
  - getNumberTypeFP
```
public JsonParser.NumberTypeFP getNumberTypeFP()
                                        throws IOException
```
    JSON format does not have native information on "correct" floating-point type to use, unlike some formats (most binary formats), so it needs to indicate this as JsonParser.NumberTypeFP.UNKNOWN.
    
    Overrides:
    
    getNumberTypeFP in class JsonParser
    
    Returns:
    
    Natural floating-point type if known; JsonParser.NumberTypeFP.UNKNOWN for all JSON-backed parsers.
    
    Throws:
    
    IOException - for low-level read issues, or JsonParseException for decoding problems
  - currentLocation
```
public abstract JsonLocation currentLocation()
```
    Description copied from class: JsonParser
    
    Method that returns location of the last processed input unit (character or byte) from the input; usually for error reporting purposes.
    Note that the location is not guaranteed to be accurate (although most implementation will try their best): some implementations may only report specific boundary locations (start or end locations of tokens) and others only return JsonLocation.NA due to not having access to input location information (when delegating actual decoding work to other library)
    
    Overrides:
    
    currentLocation in class JsonParser
    
    Returns:
    
    Location of the last processed input unit (byte or character)
  - currentTokenLocation
```
public abstract JsonLocation currentTokenLocation()
```
    Description copied from class: JsonParser
    
    Method that return the starting location of the current (most recently returned) token; that is, the position of the first input unit (character or byte) from input that starts the current token.
    Note that the location is not guaranteed to be accurate (although most implementation will try their best): some implementations may only return JsonLocation.NA due to not having access to input location information (when delegating actual decoding work to other library)
    
    Overrides:
    
    currentTokenLocation in class JsonParser
    
    Returns:
    
    Starting location of the token parser currently points to
  - _currentLocationMinusOne
```
protected abstract JsonLocation _currentLocationMinusOne()
```
    Description copied from class: ParserMinimalBase
    
    Factory method used to provide location for cases where we must read and consume a single "wrong" character (to possibly allow error recovery), but need to report accurate location for that character: if so, the current location is past location we want, and location we want will be "one location earlier".
    Default implementation simply returns JsonParser.currentLocation()
    
    Overrides:
    
    _currentLocationMinusOne in class ParserMinimalBase
    
    Returns:
    
    Same as JsonParser.currentLocation() except offset by -1
  - getCurrentLocation
```
@Deprecated
public final JsonLocation getCurrentLocation()
```
    Deprecated.
    
    Description copied from class: ParserBase
    
    Method that returns location of the last processed character; usually for error reporting purposes
    
    Overrides:
    
    getCurrentLocation in class ParserBase
    
    Returns:
    
    Location of the last processed input unit (byte or character)
  - getTokenLocation
```
@Deprecated
public final JsonLocation getTokenLocation()
```
    Deprecated.
    
    Description copied from class: ParserBase
    
    Method that return the starting location of the current token; that is, position of the first character from input that starts the current token.
    
    Overrides:
    
    getTokenLocation in class ParserBase
    
    Returns:
    
    Starting location of the token parser currently points to

Class JsonParserBase

Nested Class Summary

Nested classes/interfaces inherited from class com.fasterxml.jackson.core.JsonParser

Field Summary

Fields inherited from class com.fasterxml.jackson.core.base.ParserBase

Fields inherited from class com.fasterxml.jackson.core.base.ParserMinimalBase

Fields inherited from class com.fasterxml.jackson.core.JsonParser

Constructor Summary

Method Summary

Methods inherited from class com.fasterxml.jackson.core.base.ParserBase

Methods inherited from class com.fasterxml.jackson.core.base.ParserMinimalBase

Methods inherited from class com.fasterxml.jackson.core.JsonParser

Methods inherited from class java.lang.Object

Field Detail

FEAT_MASK_TRAILING_COMMA

FEAT_MASK_LEADING_ZEROS

FEAT_MASK_NON_NUM_NUMBERS

FEAT_MASK_ALLOW_MISSING

FEAT_MASK_ALLOW_SINGLE_QUOTES

FEAT_MASK_ALLOW_UNQUOTED_NAMES

FEAT_MASK_ALLOW_JAVA_COMMENTS

FEAT_MASK_ALLOW_YAML_COMMENTS

INPUT_CODES_LATIN1

INPUT_CODES_UTF8

_objectCodec

Constructor Detail

JsonParserBase

Method Detail

getCodec

setCodec

getReadCapabilities

getNumberTypeFP

currentLocation

currentTokenLocation

_currentLocationMinusOne

getCurrentLocation

getTokenLocation