NonBlockingJsonParserBase (Jackson-core 2.9.0 API)

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.async.NonBlockingJsonParserBase

All Implemented Interfaces:

Versioned, Closeable, AutoCloseable

Direct Known Subclasses:

NonBlockingJsonParser
```
public abstract class NonBlockingJsonParserBase
extends ParserBase
```
Intermediate base class for non-blocking JSON parsers.

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 int`	`_currBufferStart` Since we are fed content that may or may not start at zero offset, we need to keep track of the first byte within that buffer, to be able to calculate logical offset within input "stream"
`protected int`	`_currInputRowAlt` Alternate row tracker, used to keep track of position by `\r` marker (whereas `_currInputRow` tracks `\n`).
`protected boolean`	`_endOfInput` Flag that is sent when calling application indicates that there will be no more input to parse.
`protected int`	`_majorState` Current main decoding state within logical tree
`protected int`	`_majorStateAfterValue` Value of `_majorState` after completing a scalar value
`protected int`	`_minorState` Additional indicator within state; contextually relevant for just that state
`protected int`	`_minorStateAfterSplit` Secondary minor state indicator used during decoding of escapes and/or multi-byte Unicode characters
`protected int`	`_nonStdTokenType` When tokenizing non-standard ("odd") tokens, this is the type to consider; also works as index to actual textual representation.
`protected int`	`_pending32`
`protected int`	`_pendingBytes`
`protected int`	`_quad1`
`protected int[]`	`_quadBuffer` Temporary buffer used for name parsing.
`protected int`	`_quadLength`
`protected int`	`_quoted32`
`protected int`	`_quotedDigits`
`protected ByteQuadsCanonicalizer`	`_symbols` Symbol table that contains field names encountered so far
`protected static int`	`MAJOR_ARRAY_ELEMENT_FIRST`
`protected static int`	`MAJOR_ARRAY_ELEMENT_NEXT`
`protected static int`	`MAJOR_CLOSED` State after non-blocking input source has indicated that no more input is forthcoming AND we have exhausted all the input
`protected static int`	`MAJOR_INITIAL` State right after parser has been constructed, before seeing the first byte to handle possible (but optional) BOM.
`protected static int`	`MAJOR_OBJECT_FIELD_FIRST`
`protected static int`	`MAJOR_OBJECT_FIELD_NEXT`
`protected static int`	`MAJOR_OBJECT_VALUE`
`protected static int`	`MAJOR_ROOT` State right after parser a root value has been finished, but next token has not yet been recognized.
`protected static int`	`MINOR_COMMENT_C`
`protected static int`	`MINOR_COMMENT_CLOSING_ASTERISK`
`protected static int`	`MINOR_COMMENT_CPP`
`protected static int`	`MINOR_COMMENT_LEADING_SLASH`
`protected static int`	`MINOR_COMMENT_YAML`
`protected static int`	`MINOR_FIELD_APOS_NAME`
`protected static int`	`MINOR_FIELD_LEADING_COMMA`
`protected static int`	`MINOR_FIELD_LEADING_WS`
`protected static int`	`MINOR_FIELD_NAME`
`protected static int`	`MINOR_FIELD_NAME_ESCAPE`
`protected static int`	`MINOR_FIELD_UNQUOTED_NAME`
`protected static int`	`MINOR_NUMBER_EXPONENT_DIGITS`
`protected static int`	`MINOR_NUMBER_EXPONENT_MARKER`
`protected static int`	`MINOR_NUMBER_FRACTION_DIGITS`
`protected static int`	`MINOR_NUMBER_INTEGER_DIGITS`
`protected static int`	`MINOR_NUMBER_MINUS`
`protected static int`	`MINOR_NUMBER_MINUSZERO`
`protected static int`	`MINOR_NUMBER_ZERO`
`protected static int`	`MINOR_ROOT_BOM` State in which part of (UTF-8) BOM has been detected, but not yet completely.
`protected static int`	`MINOR_ROOT_GOT_SEPARATOR` State between root-level value, having processed at least one white-space character, and expecting either more, start of a value, or end of input stream.
`protected static int`	`MINOR_ROOT_NEED_SEPARATOR` State between root-level value, waiting for at least one white-space character as separator
`protected static int`	`MINOR_VALUE_APOS_STRING`
`protected static int`	`MINOR_VALUE_EXPECTING_COLON`
`protected static int`	`MINOR_VALUE_EXPECTING_COMMA`
`protected static int`	`MINOR_VALUE_LEADING_WS`
`protected static int`	`MINOR_VALUE_STRING`
`protected static int`	`MINOR_VALUE_STRING_ESCAPE`
`protected static int`	`MINOR_VALUE_STRING_UTF8_2`
`protected static int`	`MINOR_VALUE_STRING_UTF8_3`
`protected static int`	`MINOR_VALUE_STRING_UTF8_4`
`protected static int`	`MINOR_VALUE_TOKEN_ERROR` Special state at which point decoding of a non-quoted token has encountered a problem; that is, either not matching fully (like "truf" instead of "true", at "tru"), or not having trailing separator (or end of input), like "trueful".
`protected static int`	`MINOR_VALUE_TOKEN_FALSE`
`protected static int`	`MINOR_VALUE_TOKEN_NON_STD`
`protected static int`	`MINOR_VALUE_TOKEN_NULL`
`protected static int`	`MINOR_VALUE_TOKEN_TRUE`
`protected static int`	`MINOR_VALUE_WS_AFTER_COMMA`
`protected static int`	`NON_STD_TOKEN_INFINITY`
`protected static int`	`NON_STD_TOKEN_MINUS_INFINITY`
`protected static int`	`NON_STD_TOKEN_NAN`
`protected static int`	`NON_STD_TOKEN_PLUS_INFINITY`
`protected static double[]`	`NON_STD_TOKEN_VALUES`
`protected static String[]`	`NON_STD_TOKENS`

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

NonBlockingJsonParserBase(IOContext ctxt, int parserFeatures, ByteQuadsCanonicalizer sym)

Constructors
Constructor and Description
`NonBlockingJsonParserBase(IOContext ctxt, int parserFeatures, ByteQuadsCanonicalizer sym)`

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`protected String`	`_addName(int[] quads, int qlen, int lastQuadBytes)` This is the main workhorse method used when we take a symbol table miss.
`protected JsonToken`	`_closeArrayScope()`
`protected void`	`_closeInput()`
`protected JsonToken`	`_closeObjectScope()`
`protected JsonToken`	`_eofAsNextToken()` Helper method called at point when all input has been exhausted and input feeder has indicated no more input will be forthcoming.
`protected JsonToken`	`_fieldComplete(String name)`
`protected String`	`_findName(int q1, int lastQuadBytes)`
`protected String`	`_findName(int q1, int q2, int lastQuadBytes)`
`protected String`	`_findName(int q1, int q2, int q3, int lastQuadBytes)`
`protected String`	`_getText2(JsonToken t)`
`protected String`	`_nonStdToken(int type)`
`protected static int`	`_padLastQuad(int q, int bytes)` Helper method needed to fix [jackson-core#148], masking of 0x00 character
`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`	`_reportInvalidOther(int mask)`
`protected void`	`_reportInvalidOther(int mask, int ptr)`
`protected JsonToken`	`_startArrayScope()`
`protected JsonToken`	`_startObjectScope()`
`protected void`	`_updateTokenLocation()`
`protected JsonToken`	`_valueComplete(JsonToken t)`
`protected JsonToken`	`_valueCompleteInt(int value, String asText)`
`protected JsonToken`	`_valueNonStdNumberComplete(int type)`
`boolean`	`canParseAsync()` Method that can be called to determine if this parser instance uses non-blocking ("asynchronous") input access for decoding or not.
`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`	`getEmbeddedObject()` Accessor that can be called if (and only if) the current token is `JsonToken.VALUE_EMBEDDED_OBJECT`.
`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 event; if no current event (before first call to `ParserMinimalBase.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.
`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`	`hasTextCharacters()` Method that can be used to determine whether calling of `JsonParser.getTextCharacters()` would be the most efficient way to access textual content for the event parser currently points to.
`int`	`readBinaryValue(Base64Variant b64variant, OutputStream out)` Similar to `JsonParser.readBinaryValue(OutputStream)` but allows explicitly specifying base64 variant to use.
`abstract 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.
`protected ByteQuadsCanonicalizer`	`symbolTableForTests()`

Methods inherited from class com.fasterxml.jackson.core.base.ParserBase
_checkStdFeatureChanges, _decodeBase64Escape, _decodeBase64Escape, _decodeEscaped, _eofAsNextChar, _finishString, _getByteArrayBuilder, _getSourceReference, _handleEOF, _parseIntValue, _parseNumericValue, _reportMismatchedEndMarker, close, convertNumberToBigDecimal, convertNumberToBigInteger, convertNumberToDouble, convertNumberToInt, convertNumberToLong, disable, enable, getBigIntegerValue, getCurrentName, getCurrentValue, getDecimalValue, getDoubleValue, getFloatValue, getIntValue, getLongValue, getNumberType, getNumberValue, getParsingContext, getTokenCharacterOffset, getTokenColumnNr, getTokenLineNr, growArrayBy, 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, _handleUnrecognizedCharacterEscape, _hasTextualNull, _reportError, _reportError, _reportError, _reportInvalidEOF, _reportInvalidEOF, _reportInvalidEOF, _reportInvalidEOFInValue, _reportInvalidEOFInValue, _reportMissingRootWS, _reportUnexpectedChar, _throwInternal, _throwInvalidSpace, _throwUnquotedSpace, _wrapError, clearCurrentToken, currentToken, currentTokenId, getCurrentToken, getCurrentTokenId, getLastClearedToken, getValueAsBoolean, getValueAsDouble, getValueAsInt, getValueAsInt, getValueAsLong, getValueAsLong, hasCurrentToken, hasToken, hasTokenId, isExpectedStartArrayToken, isExpectedStartObjectToken, nextToken, nextValue, reportInvalidNumber, reportOverflowInt, reportOverflowLong, reportUnexpectedNumberChar, skipChildren

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

- Field Detail
  - MAJOR_INITIAL
```
protected static final int MAJOR_INITIAL
```
    State right after parser has been constructed, before seeing the first byte to handle possible (but optional) BOM.
    
    See Also:
    
    Constant Field Values
  - MAJOR_ROOT
```
protected static final int MAJOR_ROOT
```
    State right after parser a root value has been finished, but next token has not yet been recognized.
    
    See Also:
    
    Constant Field Values
  - MAJOR_OBJECT_FIELD_FIRST
```
protected static final int MAJOR_OBJECT_FIELD_FIRST
```
    See Also:
    
    Constant Field Values
  - MAJOR_OBJECT_FIELD_NEXT
```
protected static final int MAJOR_OBJECT_FIELD_NEXT
```
    See Also:
    
    Constant Field Values
  - MAJOR_OBJECT_VALUE
```
protected static final int MAJOR_OBJECT_VALUE
```
    See Also:
    
    Constant Field Values
  - MAJOR_ARRAY_ELEMENT_FIRST
```
protected static final int MAJOR_ARRAY_ELEMENT_FIRST
```
    See Also:
    
    Constant Field Values
  - MAJOR_ARRAY_ELEMENT_NEXT
```
protected static final int MAJOR_ARRAY_ELEMENT_NEXT
```
    See Also:
    
    Constant Field Values
  - MAJOR_CLOSED
```
protected static final int MAJOR_CLOSED
```
    State after non-blocking input source has indicated that no more input is forthcoming AND we have exhausted all the input
    
    See Also:
    
    Constant Field Values
  - MINOR_ROOT_BOM
```
protected static final int MINOR_ROOT_BOM
```
    State in which part of (UTF-8) BOM has been detected, but not yet completely.
    
    See Also:
    
    Constant Field Values
  - MINOR_ROOT_NEED_SEPARATOR
```
protected static final int MINOR_ROOT_NEED_SEPARATOR
```
    State between root-level value, waiting for at least one white-space character as separator
    
    See Also:
    
    Constant Field Values
  - MINOR_ROOT_GOT_SEPARATOR
```
protected static final int MINOR_ROOT_GOT_SEPARATOR
```
    State between root-level value, having processed at least one white-space character, and expecting either more, start of a value, or end of input stream.
    
    See Also:
    
    Constant Field Values
  - MINOR_FIELD_LEADING_WS
```
protected static final int MINOR_FIELD_LEADING_WS
```
    See Also:
    
    Constant Field Values
  - MINOR_FIELD_LEADING_COMMA
```
protected static final int MINOR_FIELD_LEADING_COMMA
```
    See Also:
    
    Constant Field Values
  - MINOR_FIELD_NAME
```
protected static final int MINOR_FIELD_NAME
```
    See Also:
    
    Constant Field Values
  - MINOR_FIELD_NAME_ESCAPE
```
protected static final int MINOR_FIELD_NAME_ESCAPE
```
    See Also:
    
    Constant Field Values
  - MINOR_FIELD_APOS_NAME
```
protected static final int MINOR_FIELD_APOS_NAME
```
    See Also:
    
    Constant Field Values
  - MINOR_FIELD_UNQUOTED_NAME
```
protected static final int MINOR_FIELD_UNQUOTED_NAME
```
    See Also:
    
    Constant Field Values
  - MINOR_VALUE_LEADING_WS
```
protected static final int MINOR_VALUE_LEADING_WS
```
    See Also:
    
    Constant Field Values
  - MINOR_VALUE_EXPECTING_COMMA
```
protected static final int MINOR_VALUE_EXPECTING_COMMA
```
    See Also:
    
    Constant Field Values
  - MINOR_VALUE_EXPECTING_COLON
```
protected static final int MINOR_VALUE_EXPECTING_COLON
```
    See Also:
    
    Constant Field Values
  - MINOR_VALUE_WS_AFTER_COMMA
```
protected static final int MINOR_VALUE_WS_AFTER_COMMA
```
    See Also:
    
    Constant Field Values
  - MINOR_VALUE_TOKEN_NULL
```
protected static final int MINOR_VALUE_TOKEN_NULL
```
    See Also:
    
    Constant Field Values
  - MINOR_VALUE_TOKEN_TRUE
```
protected static final int MINOR_VALUE_TOKEN_TRUE
```
    See Also:
    
    Constant Field Values
  - MINOR_VALUE_TOKEN_FALSE
```
protected static final int MINOR_VALUE_TOKEN_FALSE
```
    See Also:
    
    Constant Field Values
  - MINOR_VALUE_TOKEN_NON_STD
```
protected static final int MINOR_VALUE_TOKEN_NON_STD
```
    See Also:
    
    Constant Field Values
  - MINOR_NUMBER_MINUS
```
protected static final int MINOR_NUMBER_MINUS
```
    See Also:
    
    Constant Field Values
  - MINOR_NUMBER_ZERO
```
protected static final int MINOR_NUMBER_ZERO
```
    See Also:
    
    Constant Field Values
  - MINOR_NUMBER_MINUSZERO
```
protected static final int MINOR_NUMBER_MINUSZERO
```
    See Also:
    
    Constant Field Values
  - MINOR_NUMBER_INTEGER_DIGITS
```
protected static final int MINOR_NUMBER_INTEGER_DIGITS
```
    See Also:
    
    Constant Field Values
  - MINOR_NUMBER_FRACTION_DIGITS
```
protected static final int MINOR_NUMBER_FRACTION_DIGITS
```
    See Also:
    
    Constant Field Values
  - MINOR_NUMBER_EXPONENT_MARKER
```
protected static final int MINOR_NUMBER_EXPONENT_MARKER
```
    See Also:
    
    Constant Field Values
  - MINOR_NUMBER_EXPONENT_DIGITS
```
protected static final int MINOR_NUMBER_EXPONENT_DIGITS
```
    See Also:
    
    Constant Field Values
  - MINOR_VALUE_STRING
```
protected static final int MINOR_VALUE_STRING
```
    See Also:
    
    Constant Field Values
  - MINOR_VALUE_STRING_ESCAPE
```
protected static final int MINOR_VALUE_STRING_ESCAPE
```
    See Also:
    
    Constant Field Values
  - MINOR_VALUE_STRING_UTF8_2
```
protected static final int MINOR_VALUE_STRING_UTF8_2
```
    See Also:
    
    Constant Field Values
  - MINOR_VALUE_STRING_UTF8_3
```
protected static final int MINOR_VALUE_STRING_UTF8_3
```
    See Also:
    
    Constant Field Values
  - MINOR_VALUE_STRING_UTF8_4
```
protected static final int MINOR_VALUE_STRING_UTF8_4
```
    See Also:
    
    Constant Field Values
  - MINOR_VALUE_APOS_STRING
```
protected static final int MINOR_VALUE_APOS_STRING
```
    See Also:
    
    Constant Field Values
  - MINOR_VALUE_TOKEN_ERROR
```
protected static final int MINOR_VALUE_TOKEN_ERROR
```
    Special state at which point decoding of a non-quoted token has encountered a problem; that is, either not matching fully (like "truf" instead of "true", at "tru"), or not having trailing separator (or end of input), like "trueful". Attempt is made, then, to decode likely full input token to report suitable error.
    
    See Also:
    
    Constant Field Values
  - MINOR_COMMENT_LEADING_SLASH
```
protected static final int MINOR_COMMENT_LEADING_SLASH
```
    See Also:
    
    Constant Field Values
  - MINOR_COMMENT_CLOSING_ASTERISK
```
protected static final int MINOR_COMMENT_CLOSING_ASTERISK
```
    See Also:
    
    Constant Field Values
  - MINOR_COMMENT_C
```
protected static final int MINOR_COMMENT_C
```
    See Also:
    
    Constant Field Values
  - MINOR_COMMENT_CPP
```
protected static final int MINOR_COMMENT_CPP
```
    See Also:
    
    Constant Field Values
  - MINOR_COMMENT_YAML
```
protected static final int MINOR_COMMENT_YAML
```
    See Also:
    
    Constant Field Values
  - _symbols
```
protected final ByteQuadsCanonicalizer _symbols
```
    Symbol table that contains field names encountered so far
  - _quadBuffer
```
protected int[] _quadBuffer
```
    Temporary buffer used for name parsing.
  - _quadLength
```
protected int _quadLength
```
  - _quad1
```
protected int _quad1
```
  - _pending32
```
protected int _pending32
```
  - _pendingBytes
```
protected int _pendingBytes
```
  - _quoted32
```
protected int _quoted32
```
  - _quotedDigits
```
protected int _quotedDigits
```
  - _majorState
```
protected int _majorState
```
    Current main decoding state within logical tree
  - _majorStateAfterValue
```
protected int _majorStateAfterValue
```
    Value of _majorState after completing a scalar value
  - _minorState
```
protected int _minorState
```
    Additional indicator within state; contextually relevant for just that state
  - _minorStateAfterSplit
```
protected int _minorStateAfterSplit
```
    Secondary minor state indicator used during decoding of escapes and/or multi-byte Unicode characters
  - _endOfInput
```
protected boolean _endOfInput
```
    Flag that is sent when calling application indicates that there will be no more input to parse.
  - NON_STD_TOKEN_NAN
```
protected static final int NON_STD_TOKEN_NAN
```
    See Also:
    
    Constant Field Values
  - NON_STD_TOKEN_INFINITY
```
protected static final int NON_STD_TOKEN_INFINITY
```
    See Also:
    
    Constant Field Values
  - NON_STD_TOKEN_PLUS_INFINITY
```
protected static final int NON_STD_TOKEN_PLUS_INFINITY
```
    See Also:
    
    Constant Field Values
  - NON_STD_TOKEN_MINUS_INFINITY
```
protected static final int NON_STD_TOKEN_MINUS_INFINITY
```
    See Also:
    
    Constant Field Values
  - NON_STD_TOKENS
```
protected static final String[] NON_STD_TOKENS
```
  - NON_STD_TOKEN_VALUES
```
protected static final double[] NON_STD_TOKEN_VALUES
```
  - _nonStdTokenType
```
protected int _nonStdTokenType
```
    When tokenizing non-standard ("odd") tokens, this is the type to consider; also works as index to actual textual representation.
  - _currBufferStart
```
protected int _currBufferStart
```
    Since we are fed content that may or may not start at zero offset, we need to keep track of the first byte within that buffer, to be able to calculate logical offset within input "stream"
  - _currInputRowAlt
```
protected int _currInputRowAlt
```
    Alternate row tracker, used to keep track of position by `\r` marker (whereas _currInputRow tracks `\n`). Used to simplify tracking of linefeeds, assuming that input typically uses various linefeed combinations (`\r`, `\n` or `\r\n`) consistently, in which case we can simply choose max of two row candidates.
- Constructor Detail
  - NonBlockingJsonParserBase
```
public NonBlockingJsonParserBase(IOContext ctxt,
                                 int parserFeatures,
                                 ByteQuadsCanonicalizer sym)
```
- 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
  - canParseAsync
```
public boolean canParseAsync()
```
    Description copied from class: JsonParser
    
    Method that can be called to determine if this parser instance uses non-blocking ("asynchronous") input access for decoding or not. Access mode is determined by earlier calls via JsonFactory; it may not be changed after construction.
    If non-blocking decoding is u (@code true}, it is possible to call JsonParser.getNonBlockingInputFeeder() to obtain object to use for feeding input; otherwise (false returned) input is read by blocking
    
    Overrides:
    
    canParseAsync in class JsonParser
    
    Since:
    
    2.9
  - symbolTableForTests
```
protected ByteQuadsCanonicalizer symbolTableForTests()
```
  - releaseBuffered
```
public abstract 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
  - _releaseBuffers
```
protected void _releaseBuffers()
                        throws IOException
```
    Description copied from class: ParserBase
    
    Method called to release internal buffers owned by the base reader. This may be called along with ParserBase._closeInput() (for example, when explicitly closing this reader instance), or separately (if need be).
    
    Overrides:
    
    _releaseBuffers in class ParserBase
    
    Throws:
    
    IOException
  - 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
  - hasTextCharacters
```
public boolean hasTextCharacters()
```
    Description copied from class: JsonParser
    
    Method that can be used to determine whether calling of JsonParser.getTextCharacters() would be the most efficient way to access textual content for the event parser currently points to.
    Default implementation simply returns false since only actual implementation class has knowledge of its internal buffering state. Implementations are strongly encouraged to properly override this method, to allow efficient copying of content by other code.
    
    Overrides:
    
    hasTextCharacters in class ParserBase
    
    Returns:
    
    True if parser currently has character array that can be efficiently returned via JsonParser.getTextCharacters(); false means that it may or may not exist
  - 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
  - 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
  - getText
```
public String getText()
               throws IOException
```
    Method for accessing textual representation of the current event; if no current event (before first call to ParserMinimalBase.nextToken(), or after encountering end-of-input), returns null. Method can be called for any event.
    
    Specified by:
    
    getText in class ParserMinimalBase
    
    Throws:
    
    IOException
  - _getText2
```
protected final String _getText2(JsonToken t)
```
  - 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
  - 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
  - getEmbeddedObject
```
public Object getEmbeddedObject()
                         throws IOException
```
    Description copied from class: JsonParser
    
    Accessor that can be called if (and only if) the current token is JsonToken.VALUE_EMBEDDED_OBJECT. For other token types, null is returned.
    Note: only some specialized parser implementations support embedding of objects (usually ones that are facades on top of non-streaming sources, such as object trees). One exception is access to binary content (whether via base64 encoding or not) which typically is accessible using this method, as well as JsonParser.getBinaryValue().
    
    Overrides:
    
    getEmbeddedObject in class JsonParser
    
    Throws:
    
    IOException
  - _startArrayScope
```
protected final JsonToken _startArrayScope()
                                    throws IOException
```
    Throws:
    
    IOException
  - _startObjectScope
```
protected final JsonToken _startObjectScope()
                                     throws IOException
```
    Throws:
    
    IOException
  - _closeArrayScope
```
protected final JsonToken _closeArrayScope()
                                    throws IOException
```
    Throws:
    
    IOException
  - _closeObjectScope
```
protected final JsonToken _closeObjectScope()
                                     throws IOException
```
    Throws:
    
    IOException
  - _findName
```
protected final String _findName(int q1,
                                 int lastQuadBytes)
                          throws JsonParseException
```
    Throws:
    
    JsonParseException
  - _findName
```
protected final String _findName(int q1,
                                 int q2,
                                 int lastQuadBytes)
                          throws JsonParseException
```
    Throws:
    
    JsonParseException
  - _findName
```
protected final String _findName(int q1,
                                 int q2,
                                 int q3,
                                 int lastQuadBytes)
                          throws JsonParseException
```
    Throws:
    
    JsonParseException
  - _addName
```
protected final String _addName(int[] quads,
                                int qlen,
                                int lastQuadBytes)
                         throws JsonParseException
```
    This is the main workhorse method used when we take a symbol table miss. It needs to demultiplex individual bytes, decode multi-byte chars (if any), and then construct Name instance and add it to the symbol table.
    
    Throws:
    
    JsonParseException
  - _padLastQuad
```
protected static final int _padLastQuad(int q,
                                        int bytes)
```
    Helper method needed to fix [jackson-core#148], masking of 0x00 character
  - _eofAsNextToken
```
protected final JsonToken _eofAsNextToken()
                                   throws IOException
```
    Helper method called at point when all input has been exhausted and input feeder has indicated no more input will be forthcoming.
    
    Throws:
    
    IOException
  - _fieldComplete
```
protected final JsonToken _fieldComplete(String name)
                                  throws IOException
```
    Throws:
    
    IOException
  - _valueComplete
```
protected final JsonToken _valueComplete(JsonToken t)
                                  throws IOException
```
    Throws:
    
    IOException
  - _valueCompleteInt
```
protected final JsonToken _valueCompleteInt(int value,
                                            String asText)
                                     throws IOException
```
    Throws:
    
    IOException
  - _valueNonStdNumberComplete
```
protected final JsonToken _valueNonStdNumberComplete(int type)
                                              throws IOException
```
    Throws:
    
    IOException
  - _nonStdToken
```
protected final String _nonStdToken(int type)
```
  - _updateTokenLocation
```
protected final void _updateTokenLocation()
```
  - _reportInvalidChar
```
protected void _reportInvalidChar(int c)
                           throws JsonParseException
```
    Throws:
    
    JsonParseException
  - _reportInvalidInitial
```
protected void _reportInvalidInitial(int mask)
                              throws JsonParseException
```
    Throws:
    
    JsonParseException
  - _reportInvalidOther
```
protected void _reportInvalidOther(int mask,
                                   int ptr)
                            throws JsonParseException
```
    Throws:
    
    JsonParseException
  - _reportInvalidOther
```
protected void _reportInvalidOther(int mask)
                            throws JsonParseException
```
    Throws:
    
    JsonParseException

Class NonBlockingJsonParserBase

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

MAJOR_INITIAL

MAJOR_ROOT

MAJOR_OBJECT_FIELD_FIRST

MAJOR_OBJECT_FIELD_NEXT

MAJOR_OBJECT_VALUE

MAJOR_ARRAY_ELEMENT_FIRST

MAJOR_ARRAY_ELEMENT_NEXT

MAJOR_CLOSED

MINOR_ROOT_BOM

MINOR_ROOT_NEED_SEPARATOR

MINOR_ROOT_GOT_SEPARATOR

MINOR_FIELD_LEADING_WS

MINOR_FIELD_LEADING_COMMA

MINOR_FIELD_NAME

MINOR_FIELD_NAME_ESCAPE

MINOR_FIELD_APOS_NAME

MINOR_FIELD_UNQUOTED_NAME

MINOR_VALUE_LEADING_WS

MINOR_VALUE_EXPECTING_COMMA

MINOR_VALUE_EXPECTING_COLON

MINOR_VALUE_WS_AFTER_COMMA

MINOR_VALUE_TOKEN_NULL

MINOR_VALUE_TOKEN_TRUE

MINOR_VALUE_TOKEN_FALSE

MINOR_VALUE_TOKEN_NON_STD

MINOR_NUMBER_MINUS

MINOR_NUMBER_ZERO

MINOR_NUMBER_MINUSZERO

MINOR_NUMBER_INTEGER_DIGITS

MINOR_NUMBER_FRACTION_DIGITS

MINOR_NUMBER_EXPONENT_MARKER

MINOR_NUMBER_EXPONENT_DIGITS

MINOR_VALUE_STRING

MINOR_VALUE_STRING_ESCAPE

MINOR_VALUE_STRING_UTF8_2

MINOR_VALUE_STRING_UTF8_3

MINOR_VALUE_STRING_UTF8_4

MINOR_VALUE_APOS_STRING

MINOR_VALUE_TOKEN_ERROR

MINOR_COMMENT_LEADING_SLASH

MINOR_COMMENT_CLOSING_ASTERISK

MINOR_COMMENT_C

MINOR_COMMENT_CPP

MINOR_COMMENT_YAML

_symbols

_quadBuffer

_quadLength

_quad1

_pending32

_pendingBytes

_quoted32

_quotedDigits

_majorState

_majorStateAfterValue

_minorState

_minorStateAfterSplit

_endOfInput

NON_STD_TOKEN_NAN

NON_STD_TOKEN_INFINITY

NON_STD_TOKEN_PLUS_INFINITY

NON_STD_TOKEN_MINUS_INFINITY

NON_STD_TOKENS

NON_STD_TOKEN_VALUES

_nonStdTokenType

_currBufferStart

_currInputRowAlt