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com.fasterxml.jackson.dataformat.yaml

public Class YAMLGenerator

extends GeneratorBase
Class Inheritance
Imports
java.io.*, java.math.BigDecimal, .BigInteger, java.util.Arrays, .Collections, .Map, java.util.regex.Pattern, org.yaml.snakeyaml.DumperOptions, .DumperOptions.FlowStyle, org.yaml.snakeyaml.emitter.Emitter, org.yaml.snakeyaml.events.*, org.yaml.snakeyaml.nodes.Tag, com.fasterxml.jackson.core.*, com.fasterxml.jackson.core.base.GeneratorBase, com.fasterxml.jackson.core.json.JsonWriteContext, com.fasterxml.jackson.core.util.JacksonFeatureSet, com.fasterxml.jackson.dataformat.yaml.util.StringQuotingChecker, com.fasterxml.jackson.core.io.IOContext

Nested and Inner Type Summary

Modifier and TypeClass and Description
public static enum
YAMLGenerator.Feature

Enumeration that defines all togglable features for YAML generators

Field Summary

Modifier and TypeField and Description
protected final DumperOptions.Version
protected Emitter
protected int
_formatFeatures

Bit flag composed of bits that indicate which YAMLGenerator.Features are enabled.

protected String
_objectId

YAML supports native Object identifiers, so databinder may indicate need to output one.

protected DumperOptions
protected final StringQuotingChecker
protected int
protected final StreamWriteConstraints
protected String
_typeId

YAML supports native Type identifiers, so databinder may indicate need to output one.

protected Writer
private static final ImplicitTuple
protected static final long
protected static final long
private static final ImplicitTuple
protected static final Pattern
private static final DumperOptions.ScalarStyle
private static final DumperOptions.ScalarStyle
private static final DumperOptions.ScalarStyle
private static final DumperOptions.ScalarStyle
private static final DumperOptions.ScalarStyle
private static final DumperOptions.ScalarStyle
protected static final String
Inherited from com.fasterxml.jackson.core.base.GeneratorBase:
_cfgNumbersAsStrings_closed_features_ioContext_objectCodec_writeContextDERIVED_FEATURES_MASKMAX_BIG_DECIMAL_SCALESURR1_FIRSTSURR1_LASTSURR2_FIRSTSURR2_LASTWRITE_BINARYWRITE_BOOLEANWRITE_NULLWRITE_NUMBERWRITE_RAWWRITE_STRING

Constructor Summary

AccessConstructor and Description
public
YAMLGenerator(IOContext ctxt, int jsonFeatures, int yamlFeatures, StringQuotingChecker quotingChecker, ObjectCodec codec, Writer out, DumperOptions.Version version)

public
YAMLGenerator(IOContext ctxt, int jsonFeatures, int yamlFeatures, StringQuotingChecker quotingChecker, ObjectCodec codec, Writer out, DumperOptions dumperOptions)

public
YAMLGenerator(IOContext ctxt, int jsonFeatures, int yamlFeatures, ObjectCodec codec, Writer out, DumperOptions.Version version)
Deprecated

Method Summary

Modifier and TypeMethod and Description
private String
_base64encode(final Base64Variant b64v, final byte[] input, final String linefeed)

protected final void
protected void
protected void
protected String
_lf()

protected void
_releaseBuffers()

Implements abstract com.fasterxml.jackson.core.base.GeneratorBase._releaseBuffers.

Method called to release any buffers generator may be holding, once generator is being closed.

protected ScalarEvent
protected final void
_verifyValueWrite(String
Additional message used for generating exception message if value output is NOT legal in current generator output state.
typeMsg
)

Implements abstract com.fasterxml.jackson.core.base.GeneratorBase._verifyValueWrite.

Method called before trying to write a value (scalar or structured), to verify that this is legal in current output state, as well as to output separators if and as necessary.

private final void
protected void
private void
_writeScalarBinary(Base64Variant b64variant, byte[] data)

protected DumperOptions
buildDumperOptions(int jsonFeatures, int yamlFeatures, DumperOptions.Version version)

public boolean
canUseSchema(FormatSchema
Schema to check
schema
)

Overrides com.fasterxml.jackson.core.JsonGenerator.canUseSchema.

Method that can be used to verify that given schema can be used with this generator (using setSchema).

public boolean
canWriteFormattedNumbers()

Overrides com.fasterxml.jackson.core.JsonGenerator.canWriteFormattedNumbers.

Introspection method to call to check whether it is possible to write numbers using writeNumber(java.lang.String) using possible custom format, or not.

public boolean
canWriteObjectId()

Overrides com.fasterxml.jackson.core.JsonGenerator.canWriteObjectId.

Introspection method that may be called to see if the underlying data format supports some kind of Object Ids natively (many do not; for example, JSON doesn't).

public boolean
canWriteTypeId()

Overrides com.fasterxml.jackson.core.JsonGenerator.canWriteTypeId.

Introspection method that may be called to see if the underlying data format supports some kind of Type Ids natively (many do not; for example, JSON doesn't).

public void
close()

Overrides com.fasterxml.jackson.core.base.GeneratorBase.close.

Implements java.io.Closeable.close.

Method called to close this generator, so that no more content can be written.

public YAMLGenerator
configure(YAMLGenerator.Feature f, boolean state)

public YAMLGenerator
public YAMLGenerator
public final void
flush()

Implements abstract com.fasterxml.jackson.core.base.GeneratorBase.flush.

Implements java.io.Flushable.flush.

Method called to flush any buffered content to the underlying target (output stream, writer), and to flush the target itself as well.

public int
getFormatFeatures()

Overrides com.fasterxml.jackson.core.JsonGenerator.getFormatFeatures.

Bulk access method for getting state of all FormatFeatures, format-specific on/off configuration settings.

public int
getOutputBuffered()

Overrides com.fasterxml.jackson.core.JsonGenerator.getOutputBuffered.

SnakeYAML does not expose buffered content amount, so we can only return -1 from here

public Object
getOutputTarget()

Overrides com.fasterxml.jackson.core.JsonGenerator.getOutputTarget.

Method that can be used to get access to object that is used as target for generated output; this is usually either OutputStream or Writer, depending on what generator was constructed with.

public JacksonFeatureSet<StreamWriteCapability>
getWriteCapabilities()

Overrides com.fasterxml.jackson.core.JsonGenerator.getWriteCapabilities.

Accessor for getting metadata on capabilities of this generator, based on underlying data format being read (directly or indirectly).

public final boolean
public JsonGenerator
overrideFormatFeatures(int
Bit mask of set/clear state for features to change
values
,
int
Bit mask of features to change
mask
)

Overrides com.fasterxml.jackson.core.JsonGenerator.overrideFormatFeatures.

Bulk set method for (re)setting states of FormatFeatures, by specifying values (set / clear) along with a mask, to determine which features to change, if any.

public YAMLGenerator
setPrettyPrinter(PrettyPrinter
PrettyPrinter to assign, if any; null if none
pp
)

Overrides com.fasterxml.jackson.core.JsonGenerator.setPrettyPrinter.

Not sure what to do here; will always indent, but uses YAML-specific settings etc.

public StreamWriteConstraints
streamWriteConstraints()

Overrides com.fasterxml.jackson.core.JsonGenerator.streamWriteConstraints.

Get the constraints to apply when performing streaming writes.

public YAMLGenerator
useDefaultPrettyPrinter()

Overrides com.fasterxml.jackson.core.base.GeneratorBase.useDefaultPrettyPrinter.

Not sure what to do here; could reset indentation to some value maybe?

public Version
version()

Overrides com.fasterxml.jackson.core.base.GeneratorBase.version.

Implements com.fasterxml.jackson.core.Versioned.version.

Implemented with standard version number detection algorithm, typically using a simple generated class, with information extracted from Maven project file during build.

public void
writeBinary(Base64Variant
Base64 variant to use: defines details such as whether padding is used (and if so, using which character); what is the maximum line length before adding linefeed, and also the underlying alphabet to use.
b64variant
,
byte[]
Buffer that contains binary data to write
data
,
int
Offset in data of the first byte of data to write
offset
,
int
Length of data to write
len
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeBinary.

Method that will output given chunk of binary data as base64 encoded, as a complete String value (surrounded by double quotes).

public void
writeBoolean(boolean
Boolean value to write
state
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeBoolean.

Method for outputting literal JSON boolean value (one of Strings 'true' and 'false').

public final void
writeEndArray()

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeEndArray.

Method for writing closing marker of a JSON Array value (character ']'; plus possible white space decoration if pretty-printing is enabled).

public final void
writeEndObject()

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeEndObject.

Method for writing closing marker of an Object value (character '}'; plus possible white space decoration if pretty-printing is enabled).

public void
writeFieldId(long
Field id to write
id
)

Overrides com.fasterxml.jackson.core.JsonGenerator.writeFieldId.

Alternative to writeFieldName(String) that may be used in cases where property key is of numeric type; either where underlying format supports such notion (some binary formats do, unlike JSON), or for convenient conversion into String presentation.

public final void
writeFieldName(String
Field name to write
name
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeFieldName.

Method for writing a field name (JSON String surrounded by double quotes: syntactically identical to a JSON String value), possibly decorated by white space if pretty-printing is enabled.

public final void
writeFieldName(SerializableString
Field name to write
name
)

Overrides com.fasterxml.jackson.core.base.GeneratorBase.writeFieldName.

Method similar to writeFieldName(String), main difference being that it may perform better as some of processing (such as quoting of certain characters, or encoding into external encoding if supported by generator) can be done just once and reused for later calls.

public void
writeNull()

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeNull.

Method for outputting literal JSON null value.

public void
writeNumber(int
Number value to write
i
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeNumber.

Method for outputting given value as JSON number.

public void
writeNumber(long
Number value to write
l
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeNumber.

Method for outputting given value as JSON number.

public void
writeNumber(BigInteger
Number value to write
v
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeNumber.

Method for outputting given value as JSON number.

public void
writeNumber(double
Number value to write
d
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeNumber.

Method for outputting indicate JSON numeric value.

public void
writeNumber(float
Number value to write
f
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeNumber.

Method for outputting indicate JSON numeric value.

public void
writeNumber(BigDecimal
Number value to write
dec
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeNumber.

Method for outputting indicate JSON numeric value.

public void
writeNumber(String
Textual (possibly formatted) number representation to write
encodedValue
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeNumber.

Write method that can be used for custom numeric types that can not be (easily?) converted to "standard" Java number types.

public void
writeObjectId(Object
Native Object Id to write
id
)

Overrides com.fasterxml.jackson.core.JsonGenerator.writeObjectId.

Method that can be called to output so-called native Object Id. Note that it may only be called after ensuring this is legal (with canWriteObjectId()), as not all data formats have native type id support; and some may only allow them in certain positions or locations.

public void
writeObjectRef(Object
Referenced value, for which Object Id is expected to be written
id
)

Overrides com.fasterxml.jackson.core.JsonGenerator.writeObjectRef.

Method that can be called to output references to native Object Ids.

public void
writeRaw(String
Textual contents to include as-is in output.
text
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeRaw.

Method that will force generator to copy input text verbatim with no modifications (including that no escaping is done and no separators are added even if context [array, object] would otherwise require such).

public void
writeRaw(String
String that has contents to include as-is in output
text
,
int
Offset within text of the first character to output
offset
,
int
Length of content (from text, starting at offset offset) to output
len
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeRaw.

Method that will force generator to copy input text verbatim with no modifications (including that no escaping is done and no separators are added even if context [array, object] would otherwise require such).

public void
writeRaw(char[]
Buffer that has contents to include as-is in output
text
,
int
Offset within text of the first character to output
offset
,
int
Length of content (from text, starting at offset offset) to output
len
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeRaw.

Method that will force generator to copy input text verbatim with no modifications (including that no escaping is done and no separators are added even if context [array, object] would otherwise require such).

public void
writeRaw(char
Character to included in output
c
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeRaw.

Method that will force generator to copy input text verbatim with no modifications (including that no escaping is done and no separators are added even if context [array, object] would otherwise require such).

public void
writeRawUTF8String(byte[]
Buffer that contains String value to write
text
,
int
Offset in buffer of the first byte of String value to write
offset
,
int
Length of the String value (in characters) to write
len
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeRawUTF8String.

Method similar to writeString(String) but that takes as its input a UTF-8 encoded String that is to be output as-is, without additional escaping (type of which depends on data format; backslashes for JSON).

public void
writeRawValue(String
Textual contents to included in output
text
)

Overrides com.fasterxml.jackson.core.base.GeneratorBase.writeRawValue.

Method that will force generator to copy input text verbatim without any modifications, but assuming it must constitute a single legal JSON value (number, string, boolean, null, Array or List).

public void
public void
public final void
writeStartArray()

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeStartArray.

Method for writing starting marker of a Array value (for JSON this is character '['; plus possible white space decoration if pretty-printing is enabled).

public final void
writeStartObject()

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeStartObject.

Method for writing starting marker of an Object value (character '{'; plus possible white space decoration if pretty-printing is enabled).

public void
writeString(String
Text value to write
text
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeString.

Method for outputting a String value.

public void
writeString(char[]
Buffer that contains String value to write
text
,
int
Offset in buffer of the first character of String value to write
offset
,
int
Length of the String value (in characters) to write
len
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeString.

Method for outputting a String value.

public final void
writeString(SerializableString
Pre-encoded String value to write
sstr
)

Overrides com.fasterxml.jackson.core.base.GeneratorBase.writeString.

Method similar to writeString(String), but that takes SerializableString which can make this potentially more efficient to call as generator may be able to reuse quoted and/or encoded representation.

public void
writeTypeId(Object
Native Type Id to write
id
)

Overrides com.fasterxml.jackson.core.JsonGenerator.writeTypeId.

Method that can be called to output so-called native Type Id. Note that it may only be called after ensuring this is legal (with canWriteTypeId()), as not all data formats have native type id support; and some may only allow them in certain positions or locations.

public final void
writeUTF8String(byte[]
Buffer that contains String value to write
text
,
int
Offset in buffer of the first byte of String value to write
offset
,
int
Length of the String value (in characters) to write
len
)

Implements abstract com.fasterxml.jackson.core.JsonGenerator.writeUTF8String.

Method similar to writeString(String) but that takes as its input a UTF-8 encoded String which has not been escaped using whatever escaping scheme data format requires (for JSON that is backslash-escaping for control characters and double-quotes; for other formats something else).

Inherited from com.fasterxml.jackson.core.base.GeneratorBase:
_asString_checkRangeBoundsForByteArray_checkRangeBoundsForCharArray_checkRangeBoundsForString_checkStdFeatureChanges_constructDefaultPrettyPrinter_decodeSurrogatedisableenablegetCodecgetCurrentValuegetFeatureMaskgetOutputContextisClosedisEnabledoverrideStdFeaturessetCodecsetCurrentValuesetFeatureMaskwriteBinarywriteObjectwriteRawValuewriteStartObjectwriteTree