com.fasterxml.jackson.databind.node

Class TreeTraversingParser

java.lang.Object

com.fasterxml.jackson.core.JsonParser

com.fasterxml.jackson.core.base.ParserMinimalBase

com.fasterxml.jackson.databind.node.TreeTraversingParser

All Implemented Interfaces:

Versioned, Closeable, AutoCloseable

public class TreeTraversingParser
extends ParserMinimalBase

Facade over JsonNode that implements JsonParser to allow accessing contents of JSON tree in alternate form (stream of tokens). Useful when a streaming source is expected by code, such as data binding functionality.

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 boolean	_closed Flag that indicates whether parser is closed or not.
protected JsonToken	_nextToken Sometimes parser needs to buffer a single look-ahead token; if so, it'll be stored here.
protected com.fasterxml.jackson.databind.node.NodeCursor	_nodeCursor Traversal context within tree
protected ObjectCodec	_objectCodec
protected boolean	_startContainer Flag needed to handle recursion into contents of child Array/Object nodes.

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
TreeTraversingParser(JsonNode n)
TreeTraversingParser(JsonNode n, ObjectCodec codec)

Method Summary

Modifier and Type	Method and Description
protected void	_handleEOF()
void	close()
protected JsonNode	currentNode()
protected JsonNode	currentNumericNode()
BigInteger	getBigIntegerValue()
byte[]	getBinaryValue(Base64Variant b64variant)
ObjectCodec	getCodec()
JsonLocation	getCurrentLocation()
String	getCurrentName()
BigDecimal	getDecimalValue()
double	getDoubleValue()
Object	getEmbeddedObject()
float	getFloatValue()
int	getIntValue()
long	getLongValue()
JsonParser.NumberType	getNumberType()
Number	getNumberValue()
JsonStreamContext	getParsingContext()
String	getText()
char[]	getTextCharacters()
int	getTextLength()
int	getTextOffset()
JsonLocation	getTokenLocation()
boolean	hasTextCharacters()
boolean	isClosed()
boolean	isNaN()
JsonToken	nextToken()
void	overrideCurrentName(String name)
int	readBinaryValue(Base64Variant b64variant, OutputStream out)
void	setCodec(ObjectCodec c)
JsonParser	skipChildren()
Version	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, getValueAsString, getValueAsString, hasCurrentToken, hasToken, hasTokenId, isExpectedStartArrayToken, isExpectedStartObjectToken, nextValue, reportInvalidNumber, reportOverflowInt, reportOverflowLong, reportUnexpectedNumberChar

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

_codec, _constructError, _reportUnsupportedOperation, canParseAsync, canReadObjectId, canReadTypeId, canUseSchema, configure, currentName, disable, enable, finishToken, getBinaryValue, getBooleanValue, getByteValue, getCurrentValue, getFeatureMask, getFormatFeatures, getInputSource, getNonBlockingInputFeeder, getObjectId, getSchema, getShortValue, getText, getTypeId, getValueAsBoolean, getValueAsDouble, isEnabled, nextBooleanValue, nextFieldName, nextFieldName, nextIntValue, nextLongValue, nextTextValue, overrideFormatFeatures, overrideStdFeatures, readBinaryValue, readValueAs, readValueAs, readValueAsTree, readValuesAs, readValuesAs, releaseBuffered, releaseBuffered, requiresCustomCodec, setCurrentValue, setFeatureMask, setRequestPayloadOnError, setRequestPayloadOnError, setRequestPayloadOnError, setSchema

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

_objectCodec

protected ObjectCodec _objectCodec

_nodeCursor

protected com.fasterxml.jackson.databind.node.NodeCursor _nodeCursor

Traversal context within tree

_nextToken

protected JsonToken _nextToken

Sometimes parser needs to buffer a single look-ahead token; if so, it'll be stored here. This is currently used for handling

_startContainer

protected boolean _startContainer

Flag needed to handle recursion into contents of child Array/Object nodes.

_closed

protected boolean _closed

Flag that indicates whether parser is closed or not. Gets set when parser is either closed by explicit call (close()) or when end-of-input is reached.

Constructor Detail

TreeTraversingParser

public TreeTraversingParser(JsonNode n)

TreeTraversingParser

public TreeTraversingParser(JsonNode n,
                            ObjectCodec codec)

Method Detail

setCodec

public void setCodec(ObjectCodec c)

Specified by:

setCodec in class JsonParser

getCodec

public ObjectCodec getCodec()

Specified by:

getCodec in class JsonParser

version

public Version version()

Specified by:

version in interface Versioned

Specified by:

version in class JsonParser

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in class ParserMinimalBase

Throws:

IOException

nextToken

public JsonToken nextToken()
                    throws IOException,
                           JsonParseException

Specified by:

nextToken in class ParserMinimalBase

Throws:

IOException

JsonParseException

skipChildren

public JsonParser skipChildren()
                        throws IOException,
                               JsonParseException

Overrides:

skipChildren in class ParserMinimalBase

Throws:

IOException

JsonParseException

isClosed

public boolean isClosed()

Specified by:

isClosed in class ParserMinimalBase

getCurrentName

public String getCurrentName()

Specified by:

getCurrentName in class ParserMinimalBase

overrideCurrentName

public void overrideCurrentName(String name)

Specified by:

overrideCurrentName in class ParserMinimalBase

getParsingContext

public JsonStreamContext getParsingContext()

Specified by:

getParsingContext in class ParserMinimalBase

getTokenLocation

public JsonLocation getTokenLocation()

Specified by:

getTokenLocation in class JsonParser

getCurrentLocation

public JsonLocation getCurrentLocation()

Specified by:

getCurrentLocation in class JsonParser

getText

public String getText()

Specified by:

getText in class ParserMinimalBase

getTextCharacters

public char[] getTextCharacters()
                         throws IOException,
                                JsonParseException

Specified by:

getTextCharacters in class ParserMinimalBase

Throws:

IOException

JsonParseException

getTextLength

public int getTextLength()
                  throws IOException,
                         JsonParseException

Specified by:

getTextLength in class ParserMinimalBase

Throws:

IOException

JsonParseException

getTextOffset

public int getTextOffset()
                  throws IOException,
                         JsonParseException

Specified by:

getTextOffset in class ParserMinimalBase

Throws:

IOException

JsonParseException

hasTextCharacters

public boolean hasTextCharacters()

Specified by:

hasTextCharacters in class ParserMinimalBase

getNumberType

public JsonParser.NumberType getNumberType()
                                    throws IOException,
                                           JsonParseException

Specified by:

getNumberType in class JsonParser

Throws:

IOException

JsonParseException

getBigIntegerValue

public BigInteger getBigIntegerValue()
                              throws IOException,
                                     JsonParseException

Specified by:

getBigIntegerValue in class JsonParser

Throws:

IOException

JsonParseException

getDecimalValue

public BigDecimal getDecimalValue()
                           throws IOException,
                                  JsonParseException

Specified by:

getDecimalValue in class JsonParser

Throws:

IOException

JsonParseException

getDoubleValue

public double getDoubleValue()
                      throws IOException,
                             JsonParseException

Specified by:

getDoubleValue in class JsonParser

Throws:

IOException

JsonParseException

getFloatValue

public float getFloatValue()
                    throws IOException,
                           JsonParseException

Specified by:

getFloatValue in class JsonParser

Throws:

IOException

JsonParseException

getLongValue

public long getLongValue()
                  throws IOException,
                         JsonParseException

Specified by:

getLongValue in class JsonParser

Throws:

IOException

JsonParseException

getIntValue

public int getIntValue()
                throws IOException,
                       JsonParseException

Specified by:

getIntValue in class JsonParser

Throws:

IOException

JsonParseException

getNumberValue

public Number getNumberValue()
                      throws IOException,
                             JsonParseException

Specified by:

getNumberValue in class JsonParser

Throws:

IOException

JsonParseException

getEmbeddedObject

public Object getEmbeddedObject()

Overrides:

getEmbeddedObject in class JsonParser

isNaN

public boolean isNaN()

Overrides:

isNaN in class JsonParser

getBinaryValue

public byte[] getBinaryValue(Base64Variant b64variant)
                      throws IOException,
                             JsonParseException

Specified by:

getBinaryValue in class ParserMinimalBase

Throws:

IOException

JsonParseException

readBinaryValue

public int readBinaryValue(Base64Variant b64variant,
                           OutputStream out)
                    throws IOException,
                           JsonParseException

Overrides:

readBinaryValue in class JsonParser

Throws:

IOException

JsonParseException

currentNode

protected JsonNode currentNode()

currentNumericNode

protected JsonNode currentNumericNode()
                               throws JsonParseException

Throws:

JsonParseException

_handleEOF

protected void _handleEOF()
                   throws JsonParseException

Specified by:

_handleEOF in class ParserMinimalBase

Throws:

JsonParseException