UTF8DataInputJsonParser (jackson-core 2.11.0.rc1)

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.UTF8DataInputJsonParser

All Implemented Interfaces:

Versioned, Closeable, AutoCloseable
```
public class UTF8DataInputJsonParser
extends ParserBase
```
This is a concrete implementation of JsonParser, which is based on a DataInput as the input source.
Due to limitations in look-ahead (basically there's none), as well as overhead of reading content mostly byte-by-byte, there are some minor differences from regular streaming parsing. Specifically:
- Input location offsets not being tracked, as offsets would need to be updated for each read from all over the place. If caller wants this information, it has to track this with DataInput. This also affects column number, so the only location information available is the row (line) number (but even that is approximate in case of two-byte linefeeds -- it should work with single CR or LF tho)
- No white space validation: checks are simplified NOT to check for control characters.
Since:

2.8

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

Field Summary

Fields
Modifier and Type	Field and Description
`protected static int[]`	`_icLatin1`
`protected DataInput`	`_inputData`
`protected int`	`_nextByte` Sometimes we need buffering for just a single byte we read but have to "push back"
`protected ObjectCodec`	`_objectCodec` Codec used for data binding when (if) requested; typically full `ObjectMapper`, but that abstract is not part of core package.
`protected int[]`	`_quadBuffer` Temporary buffer used for name parsing.
`protected ByteQuadsCanonicalizer`	`_symbols` Symbol table that contains field names encountered so far
`protected boolean`	`_tokenIncomplete` Flag that indicates that the current token has not yet been fully processed, and needs to be finished for some access (or skipped to obtain the next token)

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, _numberInt, _numberLong, _numberNegative, _numTypesValid, _parsingContext, _textBuffer, _tokenInputCol, _tokenInputRow, _tokenInputTotal

Fields inherited from class com.fasterxml.jackson.core.base.ParserMinimalBase
_currToken, _lastClearedToken, 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

Constructor Summary

Constructors
Constructor and Description
`UTF8DataInputJsonParser(IOContext ctxt, int features, DataInput inputData, ObjectCodec codec, ByteQuadsCanonicalizer sym, int firstByte)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected void`	`_closeInput()`
`protected byte[]`	`_decodeBase64(Base64Variant b64variant)` Efficient handling for incremental parsing of base64-encoded textual content.
`protected int`	`_decodeCharForError(int firstByte)`
`protected char`	`_decodeEscaped()` Method that sub-classes must implement to support escaped sequences in base64-encoded sections.
`protected void`	`_finishString()`
`protected String`	`_getText2(JsonToken t)`
`protected JsonToken`	`_handleApos()`
`protected JsonToken`	`_handleInvalidNumberStart(int ch, boolean neg)` Method called if expected numeric value (due to leading sign) does not look like a number
`protected String`	`_handleOddName(int ch)` Method called when we see non-white space character other than double quote, when expecting a field name.
`protected JsonToken`	`_handleUnexpectedValue(int c)` Method for handling cases where first non-space character of an expected value token is not legal for standard JSON content.
`protected void`	`_matchToken(String matchStr, int i)`
`protected String`	`_parseAposName()`
`protected String`	`_parseName(int i)`
`protected JsonToken`	`_parseNegNumber()`
`protected JsonToken`	`_parsePosNumber(int c)` Initial parsing method for number values.
`protected int`	`_readBinary(Base64Variant b64variant, OutputStream out, byte[] buffer)`
`protected void`	`_releaseBuffers()` Method called to release internal buffers owned by the base reader.
`protected void`	`_reportInvalidChar(int c)`
`protected void`	`_reportInvalidInitial(int mask)`
`protected void`	`_reportInvalidToken(int ch, String matchedPart)`
`protected void`	`_reportInvalidToken(int ch, String matchedPart, String msg)`
`protected void`	`_skipString()` Method called to skim through rest of unparsed String value, if it is not needed.
`void`	`finishToken()` Method that may be used to force full handling of the current token so that even if lazy processing is enabled, the whole contents are read for possible retrieval.
`byte[]`	`getBinaryValue(Base64Variant b64variant)` Method that can be used to read (and consume -- results may not be accessible using other methods after the call) base64-encoded binary data included in the current textual JSON value.
`ObjectCodec`	`getCodec()` Accessor for `ObjectCodec` associated with this parser, if any.
`JsonLocation`	`getCurrentLocation()` Method that returns location of the last processed character; usually for error reporting purposes
`Object`	`getInputSource()` Method that can be used to get access to object that is used to access input being parsed; this is usually either `InputStream` or `Reader`, depending on what parser was constructed with.
`String`	`getText()` Method for accessing textual representation of the current token; if no current token (before first call to `JsonParser.nextToken()`, or after encountering end-of-input), returns null.
`int`	`getText(Writer writer)` Method to read the textual representation of the current token in chunks and pass it to the given Writer.
`char[]`	`getTextCharacters()` Method similar to `JsonParser.getText()`, but that will return underlying (unmodifiable) character array that contains textual value, instead of constructing a String object to contain this information.
`int`	`getTextLength()` Accessor used with `JsonParser.getTextCharacters()`, to know length of String stored in returned buffer.
`int`	`getTextOffset()` Accessor used with `JsonParser.getTextCharacters()`, to know offset of the first text content character within buffer.
`JsonLocation`	`getTokenLocation()` Method that return the starting location of the current token; that is, position of the first character from input that starts the current token.
`int`	`getValueAsInt()` Method that will try to convert value of current token to a int.
`int`	`getValueAsInt(int defValue)` Method that will try to convert value of current token to a int.
`String`	`getValueAsString()` Method that will try to convert value of current token to a `String`.
`String`	`getValueAsString(String defValue)` Method that will try to convert value of current token to a `String`.
`Boolean`	`nextBooleanValue()` Method that fetches next token (as if calling `JsonParser.nextToken()`) and if it is `JsonToken.VALUE_TRUE` or `JsonToken.VALUE_FALSE` returns matching Boolean value; otherwise return null.
`String`	`nextFieldName()` Method that fetches next token (as if calling `JsonParser.nextToken()`) and verifies whether it is `JsonToken.FIELD_NAME`; if it is, returns same as `JsonParser.getCurrentName()`, otherwise null.
`int`	`nextIntValue(int defaultValue)` Method that fetches next token (as if calling `JsonParser.nextToken()`) and if it is `JsonToken.VALUE_NUMBER_INT` returns 32-bit int value; otherwise returns specified default value It is functionally equivalent to:
`long`	`nextLongValue(long defaultValue)` Method that fetches next token (as if calling `JsonParser.nextToken()`) and if it is `JsonToken.VALUE_NUMBER_INT` returns 64-bit long value; otherwise returns specified default value It is functionally equivalent to:
`String`	`nextTextValue()` Method that fetches next token (as if calling `JsonParser.nextToken()`) and if it is `JsonToken.VALUE_STRING` returns contained String value; otherwise returns null.
`JsonToken`	`nextToken()` Main iteration method, which will advance stream enough to determine type of the next token, if any.
`protected String`	`parseEscapedName(int[] quads, int qlen, int currQuad, int ch, int currQuadBytes)` Slower parsing method which is generally branched to when an escape sequence is detected (or alternatively for long names, one crossing input buffer boundary).
`int`	`readBinaryValue(Base64Variant b64variant, OutputStream out)` Similar to `JsonParser.readBinaryValue(OutputStream)` but allows explicitly specifying base64 variant to use.
`int`	`releaseBuffered(OutputStream out)` Method that can be called to push back any content that has been read but not consumed by the parser.
`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, _decodeBase64Escape, _decodeBase64Escape, _eofAsNextChar, _getByteArrayBuilder, _getSourceReference, _handleBase64MissingPadding, _handleEOF, _handleUnrecognizedCharacterEscape, _parseIntValue, _parseNumericValue, _reportMismatchedEndMarker, _reportTooLongIntegral, _throwUnquotedSpace, _validJsonTokenList, _validJsonValueList, close, convertNumberToBigDecimal, convertNumberToBigInteger, convertNumberToDouble, convertNumberToInt, convertNumberToLong, disable, enable, getBigIntegerValue, getCurrentName, getCurrentValue, getDecimalValue, getDoubleValue, getFloatValue, getIntValue, getLongValue, getNumberType, getNumberValue, getParsingContext, getTokenCharacterOffset, getTokenColumnNr, getTokenLineNr, growArrayBy, hasTextCharacters, isClosed, isNaN, loadMore, loadMoreGuaranteed, overrideCurrentName, overrideStdFeatures, reportInvalidBase64Char, reportInvalidBase64Char, reset, resetAsNaN, resetFloat, resetInt, setCurrentValue, setFeatureMask, version

Methods inherited from class com.fasterxml.jackson.core.base.ParserMinimalBase
_ascii, _asciiBytes, _constructError, _decodeBase64, _getCharDesc, _hasTextualNull, _longIntegerDesc, _longNumberDesc, _reportError, _reportError, _reportError, _reportInputCoercion, _reportInvalidEOF, _reportInvalidEOF, _reportInvalidEOF, _reportInvalidEOFInValue, _reportInvalidEOFInValue, _reportMissingRootWS, _reportUnexpectedChar, _throwInternal, _throwInvalidSpace, _wrapError, clearCurrentToken, currentToken, currentTokenId, getCurrentToken, getCurrentTokenId, getLastClearedToken, getValueAsBoolean, getValueAsDouble, getValueAsLong, getValueAsLong, hasCurrentToken, hasToken, hasTokenId, isExpectedStartArrayToken, isExpectedStartObjectToken, nextValue, reportInvalidNumber, reportOverflowInt, reportOverflowInt, reportOverflowInt, reportOverflowLong, reportOverflowLong, reportOverflowLong, reportUnexpectedNumberChar, skipChildren

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

- Field Detail
  - _icLatin1
```
protected static final int[] _icLatin1
```
  - _objectCodec
```
protected ObjectCodec _objectCodec
```
    Codec used for data binding when (if) requested; typically full ObjectMapper, but that abstract is not part of core package.
  - _symbols
```
protected final ByteQuadsCanonicalizer _symbols
```
    Symbol table that contains field names encountered so far
  - _quadBuffer
```
protected int[] _quadBuffer
```
    Temporary buffer used for name parsing.
  - _tokenIncomplete
```
protected boolean _tokenIncomplete
```
    Flag that indicates that the current token has not yet been fully processed, and needs to be finished for some access (or skipped to obtain the next token)
  - _inputData
```
protected DataInput _inputData
```
  - _nextByte
```
protected int _nextByte
```
    Sometimes we need buffering for just a single byte we read but have to "push back"
- Constructor Detail
  - UTF8DataInputJsonParser
```
public UTF8DataInputJsonParser(IOContext ctxt,
                               int features,
                               DataInput inputData,
                               ObjectCodec codec,
                               ByteQuadsCanonicalizer sym,
                               int firstByte)
```
- 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
  - 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
  - releaseBuffered
```
public int releaseBuffered(OutputStream out)
                    throws IOException
```
    Description copied from class: JsonParser
    
    Method that can be called to push back any content that has been read but not consumed by the parser. This is usually done after reading all content of interest using parser. Content is released by writing it to given stream if possible; if underlying input is byte-based it can released, if not (char-based) it can not.
    
    Overrides:
    
    releaseBuffered in class JsonParser
    
    Returns:
    
    -1 if the underlying content source is not byte based (that is, input can not be sent to OutputStream; otherwise number of bytes released (0 if there was nothing to release)
    
    Throws:
    
    IOException - if write to stream threw exception
  - getInputSource
```
public Object getInputSource()
```
    Description copied from class: JsonParser
    
    Method that can be used to get access to object that is used to access input being parsed; this is usually either InputStream or Reader, depending on what parser was constructed with. Note that returned value may be null in some cases; including case where parser implementation does not want to exposed raw source to caller. In cases where input has been decorated, object returned here is the decorated version; this allows some level of interaction between users of parser and decorator object.
    In general use of this accessor should be considered as "last effort", i.e. only used if no other mechanism is applicable.
    
    Overrides:
    
    getInputSource in class JsonParser
  - _closeInput
```
protected void _closeInput()
                    throws IOException
```
    Specified by:
    
    _closeInput in class ParserBase
    
    Throws:
    
    IOException
  - _releaseBuffers
```
protected void _releaseBuffers()
                        throws IOException
```
    Method called to release internal buffers owned by the base reader. This may be called along with _closeInput() (for example, when explicitly closing this reader instance), or separately (if need be).
    
    Overrides:
    
    _releaseBuffers in class ParserBase
    
    Throws:
    
    IOException
  - getText
```
public String getText()
               throws IOException
```
    Description copied from class: JsonParser
    
    Method for accessing textual representation of the current token; if no current token (before first call to JsonParser.nextToken(), or after encountering end-of-input), returns null. Method can be called for any token type.
    
    Specified by:
    
    getText in class ParserMinimalBase
    
    Throws:
    
    IOException
  - getText
```
public int getText(Writer writer)
            throws IOException
```
    Description copied from class: JsonParser
    Method to read the textual representation of the current token in chunks and pass it to the given Writer. Conceptually same as calling:
```
  writer.write(parser.getText());
```
    but should typically be more efficient as longer content does need to be combined into a single String to return, and write can occur directly from intermediate buffers Jackson uses.
    Overrides:
    
    getText in class JsonParser
    
    Returns:
    
    The number of characters written to the Writer
    
    Throws:
    
    IOException
  - getValueAsString
```
public String getValueAsString()
                        throws IOException
```
    Description copied from class: JsonParser
    
    Method that will try to convert value of current token to a String. JSON Strings map naturally; scalar values get converted to their textual representation. If representation can not be converted to a String value (including structured types like Objects and Arrays and null token), default value of null will be returned; no exceptions are thrown.
    
    Overrides:
    
    getValueAsString in class ParserMinimalBase
    
    Throws:
    
    IOException
  - getValueAsString
```
public String getValueAsString(String defValue)
                        throws IOException
```
    Description copied from class: JsonParser
    
    Method that will try to convert value of current token to a String. JSON Strings map naturally; scalar values get converted to their textual representation. If representation can not be converted to a String value (including structured types like Objects and Arrays and null token), specified default value will be returned; no exceptions are thrown.
    
    Overrides:
    
    getValueAsString in class ParserMinimalBase
    
    Throws:
    
    IOException
  - getValueAsInt
```
public int getValueAsInt()
                  throws IOException
```
    Description copied from class: JsonParser
    
    Method that will try to convert value of current token to a int. Numbers are coerced using default Java rules; booleans convert to 0 (false) and 1 (true), and Strings are parsed using default Java language integer parsing rules.
    If representation can not be converted to an int (including structured type markers like start/end Object/Array) default value of 0 will be returned; no exceptions are thrown.
    
    Overrides:
    
    getValueAsInt in class ParserMinimalBase
    
    Throws:
    
    IOException
  - getValueAsInt
```
public int getValueAsInt(int defValue)
                  throws IOException
```
    Description copied from class: JsonParser
    
    Method that will try to convert value of current token to a int. Numbers are coerced using default Java rules; booleans convert to 0 (false) and 1 (true), and Strings are parsed using default Java language integer parsing rules.
    If representation can not be converted to an int (including structured type markers like start/end Object/Array) specified def will be returned; no exceptions are thrown.
    
    Overrides:
    
    getValueAsInt in class ParserMinimalBase
    
    Throws:
    
    IOException
  - _getText2
```
protected final String _getText2(JsonToken t)
```
  - getTextCharacters
```
public char[] getTextCharacters()
                         throws IOException
```
    Description copied from class: JsonParser
    Method similar to JsonParser.getText(), but that will return underlying (unmodifiable) character array that contains textual value, instead of constructing a String object to contain this information. Note, however, that:
    - Textual contents are not guaranteed to start at index 0 (rather, call JsonParser.getTextOffset()) to know the actual offset
    - Length of textual contents may be less than the length of returned buffer: call JsonParser.getTextLength() for actual length of returned content.
    Note that caller MUST NOT modify the returned character array in any way -- doing so may corrupt current parser state and render parser instance useless.
    The only reason to call this method (over JsonParser.getText()) is to avoid construction of a String object (which will make a copy of contents).
    Specified by:
    
    getTextCharacters in class ParserMinimalBase
    
    Throws:
    
    IOException
  - getTextLength
```
public int getTextLength()
                  throws IOException
```
    Description copied from class: JsonParser
    
    Accessor used with JsonParser.getTextCharacters(), to know length of String stored in returned buffer.
    
    Specified by:
    
    getTextLength in class ParserMinimalBase
    
    Returns:
    
    Number of characters within buffer returned by JsonParser.getTextCharacters() that are part of textual content of the current token.
    
    Throws:
    
    IOException
  - getTextOffset
```
public int getTextOffset()
                  throws IOException
```
    Description copied from class: JsonParser
    
    Accessor used with JsonParser.getTextCharacters(), to know offset of the first text content character within buffer.
    
    Specified by:
    
    getTextOffset in class ParserMinimalBase
    
    Returns:
    
    Offset of the first character within buffer returned by JsonParser.getTextCharacters() that is part of textual content of the current token.
    
    Throws:
    
    IOException
  - getBinaryValue
```
public byte[] getBinaryValue(Base64Variant b64variant)
                      throws IOException
```
    Description copied from class: JsonParser
    
    Method that can be used to read (and consume -- results may not be accessible using other methods after the call) base64-encoded binary data included in the current textual JSON value. It works similar to getting String value via JsonParser.getText() and decoding result (except for decoding part), but should be significantly more performant.
    Note that non-decoded textual contents of the current token are not guaranteed to be accessible after this method is called. Current implementation, for example, clears up textual content during decoding. Decoded binary content, however, will be retained until parser is advanced to the next event.
    
    Overrides:
    
    getBinaryValue in class ParserBase
    
    Parameters:
    
    b64variant - Expected variant of base64 encoded content (see Base64Variants for definitions of "standard" variants).
    
    Returns:
    
    Decoded binary data
    
    Throws:
    
    IOException
  - readBinaryValue
```
public int readBinaryValue(Base64Variant b64variant,
                           OutputStream out)
                    throws IOException
```
    Description copied from class: JsonParser
    
    Similar to JsonParser.readBinaryValue(OutputStream) but allows explicitly specifying base64 variant to use.
    
    Overrides:
    
    readBinaryValue in class JsonParser
    
    Parameters:
    
    b64variant - base64 variant to use
    
    out - Output stream to use for passing decoded binary data
    
    Returns:
    
    Number of bytes that were decoded and written via OutputStream
    
    Throws:
    
    IOException
  - _readBinary
```
protected int _readBinary(Base64Variant b64variant,
                          OutputStream out,
                          byte[] buffer)
                   throws IOException
```
    Throws:
    
    IOException
  - nextToken
```
public JsonToken nextToken()
                    throws IOException
```
    Description copied from class: JsonParser
    
    Main iteration method, which will advance stream enough to determine type of the next token, if any. If none remaining (stream has no content other than possible white space before ending), null will be returned.
    
    Specified by:
    
    nextToken in class ParserMinimalBase
    
    Returns:
    
    Next token from the stream, if any found, or null to indicate end-of-input
    
    Throws:
    
    IOException
  - finishToken
```
public void finishToken()
                 throws IOException
```
    Description copied from class: JsonParser
    
    Method that may be used to force full handling of the current token so that even if lazy processing is enabled, the whole contents are read for possible retrieval. This is usually used to ensure that the token end location is available, as well as token contents (similar to what calling, say JsonParser.getTextCharacters(), would achieve).
    Note that for many dataformat implementations this method will not do anything; this is the default implementation unless overridden by sub-classes.
    
    Overrides:
    
    finishToken in class JsonParser
    
    Throws:
    
    IOException
  - nextFieldName
```
public String nextFieldName()
                     throws IOException
```
    Description copied from class: JsonParser
    
    Method that fetches next token (as if calling JsonParser.nextToken()) and verifies whether it is JsonToken.FIELD_NAME; if it is, returns same as JsonParser.getCurrentName(), otherwise null.
    
    Overrides:
    
    nextFieldName in class JsonParser
    
    Throws:
    
    IOException
  - nextTextValue
```
public String nextTextValue()
                     throws IOException
```
    Description copied from class: JsonParser
    Method that fetches next token (as if calling JsonParser.nextToken()) and if it is JsonToken.VALUE_STRING returns contained String value; otherwise returns null. It is functionally equivalent to:
```
  return (nextToken() == JsonToken.VALUE_STRING) ? getText() : null;
```
    but may be faster for parser to process, and can therefore be used if caller expects to get a String value next from input.
    Overrides:
    
    nextTextValue in class JsonParser
    
    Throws:
    
    IOException
  - nextIntValue
```
public int nextIntValue(int defaultValue)
                 throws IOException
```
    Description copied from class: JsonParser
    Method that fetches next token (as if calling JsonParser.nextToken()) and if it is JsonToken.VALUE_NUMBER_INT returns 32-bit int value; otherwise returns specified default value It is functionally equivalent to:
```
  return (nextToken() == JsonToken.VALUE_NUMBER_INT) ? getIntValue() : defaultValue;
```
    but may be faster for parser to process, and can therefore be used if caller expects to get an int value next from input.
    Overrides:
    
    nextIntValue in class JsonParser
    
    Throws:
    
    IOException
  - nextLongValue
```
public long nextLongValue(long defaultValue)
                   throws IOException
```
    Description copied from class: JsonParser
    Method that fetches next token (as if calling JsonParser.nextToken()) and if it is JsonToken.VALUE_NUMBER_INT returns 64-bit long value; otherwise returns specified default value It is functionally equivalent to:
```
  return (nextToken() == JsonToken.VALUE_NUMBER_INT) ? getLongValue() : defaultValue;
```
    but may be faster for parser to process, and can therefore be used if caller expects to get a long value next from input.
    Overrides:
    
    nextLongValue in class JsonParser
    
    Throws:
    
    IOException
  - nextBooleanValue
```
public Boolean nextBooleanValue()
                         throws IOException
```
    Description copied from class: JsonParser
    Method that fetches next token (as if calling JsonParser.nextToken()) and if it is JsonToken.VALUE_TRUE or JsonToken.VALUE_FALSE returns matching Boolean value; otherwise return null. It is functionally equivalent to:
```
  JsonToken t = nextToken();
  if (t == JsonToken.VALUE_TRUE) return Boolean.TRUE;
  if (t == JsonToken.VALUE_FALSE) return Boolean.FALSE;
  return null;
```
    but may be faster for parser to process, and can therefore be used if caller expects to get a Boolean value next from input.
    Overrides:
    
    nextBooleanValue in class JsonParser
    
    Throws:
    
    IOException
  - _parsePosNumber
```
protected JsonToken _parsePosNumber(int c)
                             throws IOException
```
    Initial parsing method for number values. It needs to be able to parse enough input to be able to determine whether the value is to be considered a simple integer value, or a more generic decimal value: latter of which needs to be expressed as a floating point number. The basic rule is that if the number has no fractional or exponential part, it is an integer; otherwise a floating point number.
    Because much of input has to be processed in any case, no partial parsing is done: all input text will be stored for further processing. However, actual numeric value conversion will be deferred, since it is usually the most complicated and costliest part of processing.
    
    Throws:
    
    IOException
  - _parseNegNumber
```
protected JsonToken _parseNegNumber()
                             throws IOException
```
    Throws:
    
    IOException
  - _parseName
```
protected final String _parseName(int i)
                           throws IOException
```
    Throws:
    
    IOException
  - parseEscapedName
```
protected final String parseEscapedName(int[] quads,
                                        int qlen,
                                        int currQuad,
                                        int ch,
                                        int currQuadBytes)
                                 throws IOException
```
    Slower parsing method which is generally branched to when an escape sequence is detected (or alternatively for long names, one crossing input buffer boundary). Needs to be able to handle more exceptional cases, gets slower, and hance is offlined to a separate method.
    
    Throws:
    
    IOException
  - _handleOddName
```
protected String _handleOddName(int ch)
                         throws IOException
```
    Method called when we see non-white space character other than double quote, when expecting a field name. In standard mode will just throw an exception; but in non-standard modes may be able to parse name.
    
    Throws:
    
    IOException
  - _parseAposName
```
protected String _parseAposName()
                         throws IOException
```
    Throws:
    
    IOException
  - _finishString
```
protected void _finishString()
                      throws IOException
```
    Overrides:
    
    _finishString in class ParserBase
    
    Throws:
    
    IOException
  - _skipString
```
protected void _skipString()
                    throws IOException
```
    Method called to skim through rest of unparsed String value, if it is not needed. This can be done bit faster if contents need not be stored for future access.
    
    Throws:
    
    IOException
  - _handleUnexpectedValue
```
protected JsonToken _handleUnexpectedValue(int c)
                                    throws IOException
```
    Method for handling cases where first non-space character of an expected value token is not legal for standard JSON content.
    
    Throws:
    
    IOException
  - _handleApos
```
protected JsonToken _handleApos()
                         throws IOException
```
    Throws:
    
    IOException
  - _handleInvalidNumberStart
```
protected JsonToken _handleInvalidNumberStart(int ch,
                                              boolean neg)
                                       throws IOException
```
    Method called if expected numeric value (due to leading sign) does not look like a number
    
    Throws:
    
    IOException
  - _matchToken
```
protected final void _matchToken(String matchStr,
                                 int i)
                          throws IOException
```
    Throws:
    
    IOException
  - _decodeEscaped
```
protected char _decodeEscaped()
                       throws IOException
```
    Description copied from class: ParserBase
    
    Method that sub-classes must implement to support escaped sequences in base64-encoded sections. Sub-classes that do not need base64 support can leave this as is
    
    Overrides:
    
    _decodeEscaped in class ParserBase
    
    Throws:
    
    IOException
  - _decodeCharForError
```
protected int _decodeCharForError(int firstByte)
                           throws IOException
```
    Throws:
    
    IOException
  - _reportInvalidToken
```
protected void _reportInvalidToken(int ch,
                                   String matchedPart)
                            throws IOException
```
    Throws:
    
    IOException
  - _reportInvalidToken
```
protected void _reportInvalidToken(int ch,
                                   String matchedPart,
                                   String msg)
                            throws IOException
```
    Throws:
    
    IOException
  - _reportInvalidChar
```
protected void _reportInvalidChar(int c)
                           throws JsonParseException
```
    Throws:
    
    JsonParseException
  - _reportInvalidInitial
```
protected void _reportInvalidInitial(int mask)
                              throws JsonParseException
```
    Throws:
    
    JsonParseException
  - _decodeBase64
```
protected final byte[] _decodeBase64(Base64Variant b64variant)
                              throws IOException
```
    Efficient handling for incremental parsing of base64-encoded textual content.
    
    Throws:
    
    IOException
  - getTokenLocation
```
public JsonLocation getTokenLocation()
```
    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
  - getCurrentLocation
```
public JsonLocation getCurrentLocation()
```
    Description copied from class: ParserBase
    
    Method that returns location of the last processed character; usually for error reporting purposes
    
    Overrides:
    
    getCurrentLocation in class ParserBase

Class UTF8DataInputJsonParser

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

_icLatin1

_objectCodec

_symbols

_quadBuffer

_tokenIncomplete

_inputData

_nextByte

Constructor Detail

UTF8DataInputJsonParser

Method Detail

getCodec

setCodec

releaseBuffered

getInputSource

_closeInput

_releaseBuffers

getText

getText

getValueAsString

getValueAsString

getValueAsInt

getValueAsInt

_getText2

getTextCharacters

getTextLength

getTextOffset

getBinaryValue

readBinaryValue

_readBinary

nextToken

finishToken

nextFieldName

nextTextValue

nextIntValue

nextLongValue

nextBooleanValue

_parsePosNumber

_parseNegNumber

_parseName

parseEscapedName

_handleOddName

_parseAposName

_finishString

_skipString

_handleUnexpectedValue

_handleApos

_handleInvalidNumberStart

_matchToken

_decodeEscaped

_decodeCharForError

_reportInvalidToken

_reportInvalidToken

_reportInvalidChar

_reportInvalidInitial

_decodeBase64

getTokenLocation

getCurrentLocation