public abstract class JsonParser extends Object implements Closeable, Versioned
JsonFactory
instance.Modifier and Type | Class and Description |
---|---|
static class |
JsonParser.Feature
Enumeration that defines all togglable features for parsers.
|
static class |
JsonParser.NumberType
Enumeration of possible "native" (optimal) types that can be
used for numbers.
|
Modifier and Type | Field and Description |
---|---|
protected JsonToken |
_currToken
Last token retrieved via
nextToken() , if any. |
protected int |
_features
Bit flag composed of bits that indicate which
JsonParser.Feature s
are enabled. |
protected JsonToken |
_lastClearedToken
Last cleared token, if any: that is, value that was in
effect when
clearCurrentToken() was called. |
Modifier | Constructor and Description |
---|---|
protected |
JsonParser() |
protected |
JsonParser(int features) |
Modifier and Type | Method and Description |
---|---|
protected JsonParseException |
_constructError(String msg)
Helper method for constructing
JsonParseException s
based on current state of the parser |
boolean |
canUseSchema(FormatSchema schema)
Method that can be used to verify that given schema can be used with
this parser (using
setSchema(org.codehaus.jackson.FormatSchema) ). |
void |
clearCurrentToken()
Method called to "consume" the current token by effectively
removing it so that
hasCurrentToken() returns false, and
getCurrentToken() null). |
abstract void |
close()
Closes the parser so that no further iteration or data access
can be made; will also close the underlying input source
if parser either owns the input source, or feature
JsonParser.Feature.AUTO_CLOSE_SOURCE is enabled. |
JsonParser |
configure(JsonParser.Feature f,
boolean state)
Method for enabling or disabling specified feature
(check
JsonParser.Feature for list of features) |
JsonParser |
disable(JsonParser.Feature f)
Method for disabling specified feature
(check
JsonParser.Feature for list of features) |
void |
disableFeature(JsonParser.Feature f)
Deprecated.
Use
disable(Feature) instead |
JsonParser |
enable(JsonParser.Feature f)
Method for enabling specified parser feature
(check
JsonParser.Feature for list of features) |
void |
enableFeature(JsonParser.Feature f)
Deprecated.
Use
enable(Feature) instead |
abstract BigInteger |
getBigIntegerValue()
Numeric accessor that can be called when the current
token is of type
JsonToken.VALUE_NUMBER_INT and
it can not be used as a Java long primitive type due to its
magnitude. |
byte[] |
getBinaryValue()
Convenience alternative to
getBinaryValue(Base64Variant)
that defaults to using
Base64Variants.getDefaultVariant() as the default encoding. |
abstract 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.
|
boolean |
getBooleanValue()
Convenience accessor that can be called when the current
token is
JsonToken.VALUE_TRUE or
JsonToken.VALUE_FALSE . |
byte |
getByteValue()
Numeric accessor that can be called when the current
token is of type
JsonToken.VALUE_NUMBER_INT and
it can be expressed as a value of Java byte primitive type. |
abstract ObjectCodec |
getCodec()
Accessor for
ObjectCodec associated with this
parser, if any. |
abstract JsonLocation |
getCurrentLocation()
Method that returns location of the last processed character;
usually for error reporting purposes.
|
abstract String |
getCurrentName()
Method that can be called to get the name associated with
the current token: for
JsonToken.FIELD_NAME s it will
be the same as what getText() returns;
for field values it will be preceding field name;
and for others (array values, root-level values) null. |
JsonToken |
getCurrentToken()
Accessor to find which token parser currently points to, if any;
null will be returned if none.
|
abstract BigDecimal |
getDecimalValue()
Numeric accessor that can be called when the current
token is of type
JsonToken.VALUE_NUMBER_FLOAT or
JsonToken.VALUE_NUMBER_INT . |
abstract double |
getDoubleValue()
Numeric accessor that can be called when the current
token is of type
JsonToken.VALUE_NUMBER_FLOAT and
it can be expressed as a Java double primitive type. |
Object |
getEmbeddedObject()
Accessor that can be called if (and only if) the current token
is
JsonToken.VALUE_EMBEDDED_OBJECT . |
abstract float |
getFloatValue()
Numeric accessor that can be called when the current
token is of type
JsonToken.VALUE_NUMBER_FLOAT and
it can be expressed as a Java float primitive type. |
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. |
abstract int |
getIntValue()
Numeric accessor that can be called when the current
token is of type
JsonToken.VALUE_NUMBER_INT and
it can be expressed as a value of Java int primitive type. |
JsonToken |
getLastClearedToken()
Method that can be called to get the last token that was
cleared using
clearCurrentToken() . |
abstract long |
getLongValue()
Numeric accessor that can be called when the current
token is of type
JsonToken.VALUE_NUMBER_INT and
it can be expressed as a Java long primitive type. |
abstract JsonParser.NumberType |
getNumberType()
If current token is of type
JsonToken.VALUE_NUMBER_INT or
JsonToken.VALUE_NUMBER_FLOAT , returns
one of JsonParser.NumberType constants; otherwise returns null. |
abstract Number |
getNumberValue()
Generic number value accessor method that will work for
all kinds of numeric values.
|
abstract JsonStreamContext |
getParsingContext()
Method that can be used to access current parsing context reader
is in.
|
short |
getShortValue()
Numeric accessor that can be called when the current
token is of type
JsonToken.VALUE_NUMBER_INT and
it can be expressed as a value of Java short primitive type. |
abstract String |
getText()
Method for accessing textual representation of the current token;
if no current token (before first call to
nextToken() , or
after encountering end-of-input), returns null. |
abstract char[] |
getTextCharacters()
Method similar to
getText() , but that will return
underlying (unmodifiable) character array that contains
textual value, instead of constructing a String object
to contain this information. |
abstract int |
getTextLength()
Accessor used with
getTextCharacters() , to know length
of String stored in returned buffer. |
abstract int |
getTextOffset()
Accessor used with
getTextCharacters() , to know offset
of the first text content character within buffer. |
abstract 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.
|
boolean |
getValueAsBoolean()
Method that will try to convert value of current token to a
boolean.
|
boolean |
getValueAsBoolean(boolean defaultValue)
Method that will try to convert value of current token to a
boolean.
|
double |
getValueAsDouble()
Method that will try to convert value of current token to a Java
double.
|
double |
getValueAsDouble(double defaultValue)
Method that will try to convert value of current token to a
Java double.
|
int |
getValueAsInt()
Method that will try to convert value of current token to a
int.
|
int |
getValueAsInt(int defaultValue)
Method that will try to convert value of current token to a
int.
|
long |
getValueAsLong()
Method that will try to convert value of current token to a
long.
|
long |
getValueAsLong(long defaultValue)
Method that will try to convert value of current token to a
long.
|
boolean |
hasCurrentToken()
Method for checking whether parser currently points to
a token (and data for that token is available).
|
boolean |
hasTextCharacters()
Method that can be used to determine whether calling of
getTextCharacters() would be the most efficient
way to access textual content for the event parser currently
points to. |
abstract boolean |
isClosed()
Method that can be called to determine whether this parser
is closed or not.
|
boolean |
isEnabled(JsonParser.Feature f)
Method for checking whether specified
JsonParser.Feature
is enabled. |
boolean |
isExpectedStartArrayToken()
Specialized accessor that can be used to verify that the current
token indicates start array (usually meaning that current token
is
JsonToken.START_ARRAY ) when start array is expected. |
boolean |
isFeatureEnabled(JsonParser.Feature f)
Deprecated.
Use
isEnabled(Feature) instead |
Boolean |
nextBooleanValue()
Method that fetches next token (as if calling
nextToken() ) and
if it is JsonToken.VALUE_TRUE or JsonToken.VALUE_FALSE
returns matching Boolean value; otherwise return null. |
boolean |
nextFieldName(SerializableString str)
Method that fetches next token (as if calling
nextToken() ) and
verifies whether it is JsonToken.FIELD_NAME with specified name
and returns result of that comparison. |
int |
nextIntValue(int defaultValue)
Method that fetches next token (as if calling
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
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
nextToken() ) and
if it is JsonToken.VALUE_STRING returns contained String value;
otherwise returns null. |
abstract JsonToken |
nextToken()
Main iteration method, which will advance stream enough
to determine type of the next token, if any.
|
JsonToken |
nextValue()
Iteration method that will advance stream enough
to determine type of the next token that is a value type
(including JSON Array and Object start/end markers).
|
<T> T |
readValueAs(Class<T> valueType)
Method to deserialize JSON content into a non-container
type (it can be an array type, however): typically a bean, array
or a wrapper type (like
Boolean ). |
<T> T |
readValueAs(TypeReference<?> valueTypeRef)
Method to deserialize JSON content into a Java type, reference
to which is passed as argument.
|
JsonNode |
readValueAsTree()
Method to deserialize JSON content into equivalent "tree model",
represented by root
JsonNode of resulting model. |
<T> Iterator<T> |
readValuesAs(Class<T> valueType)
Method for reading sequence of Objects from parser stream,
all with same specified value type.
|
<T> Iterator<T> |
readValuesAs(TypeReference<?> valueTypeRef)
Method for reading sequence of Objects from parser stream,
all with same specified value type.
|
int |
releaseBuffered(OutputStream out)
Method that can be called to push back any content that
has been read but not consumed by the parser.
|
int |
releaseBuffered(Writer w)
Method that can be called to push back any content that
has been read but not consumed by the parser.
|
abstract void |
setCodec(ObjectCodec c)
Setter that allows defining
ObjectCodec associated with this
parser, if any. |
void |
setFeature(JsonParser.Feature f,
boolean state)
Deprecated.
|
void |
setSchema(FormatSchema schema)
Method to call to make this parser use specified schema.
|
abstract JsonParser |
skipChildren()
Method that will skip all child tokens of an array or
object token that the parser currently points to,
iff stream points to
JsonToken.START_OBJECT or JsonToken.START_ARRAY . |
Version |
version()
Method called to detect version of the component that implements this interface;
returned version should never be null, but may return specific "not available"
instance (see
Version for details). |
protected int _features
JsonParser.Feature
s
are enabled.protected JsonToken _currToken
nextToken()
, if any.
Null before the first call to nextToken()
,
as well as if token has been explicitly cleared
(by call to clearCurrentToken()
)protected JsonToken _lastClearedToken
clearCurrentToken()
was called.public abstract ObjectCodec getCodec()
ObjectCodec
associated with this
parser, if any. Codec is used by readValueAs(Class)
method (and its variants).public abstract void setCodec(ObjectCodec c)
ObjectCodec
associated with this
parser, if any. Codec is used by readValueAs(Class)
method (and its variants).public void setSchema(FormatSchema schema)
If parser does not support specified schema, UnsupportedOperationException
is thrown.
schema
- Schema to useUnsupportedOperationException
- if parser does not support schemapublic boolean canUseSchema(FormatSchema schema)
setSchema(org.codehaus.jackson.FormatSchema)
).schema
- Schema to checkpublic Version version()
Versioned
Version
for details).public Object getInputSource()
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.
public abstract void close() throws IOException
JsonParser.Feature.AUTO_CLOSE_SOURCE
is enabled.
Whether parser owns the input source depends on factory
method that was used to construct instance (so check
JsonFactory
for details,
but the general
idea is that if caller passes in closable resource (such
as InputStream
or Reader
) parser does NOT
own the source; but if it passes a reference (such as
File
or URL
and creates
stream or reader it does own them.close
in interface Closeable
close
in interface AutoCloseable
IOException
public int releaseBuffered(OutputStream out) throws IOException
OutputStream
;
otherwise number of bytes released (0 if there was nothing to release)IOException
- if write to stream threw exceptionpublic int releaseBuffered(Writer w) throws IOException
Writer
;
otherwise number of chars released (0 if there was nothing to release)IOException
- if write using Writer threw exceptionpublic JsonParser enable(JsonParser.Feature f)
JsonParser.Feature
for list of features)public JsonParser disable(JsonParser.Feature f)
JsonParser.Feature
for list of features)public JsonParser configure(JsonParser.Feature f, boolean state)
JsonParser.Feature
for list of features)public boolean isEnabled(JsonParser.Feature f)
JsonParser.Feature
is enabled.public void setFeature(JsonParser.Feature f, boolean state)
configure(org.codehaus.jackson.JsonParser.Feature, boolean)
insteadpublic void enableFeature(JsonParser.Feature f)
enable(Feature)
insteadpublic void disableFeature(JsonParser.Feature f)
disable(Feature)
insteadpublic final boolean isFeatureEnabled(JsonParser.Feature f)
isEnabled(Feature)
insteadpublic abstract JsonToken nextToken() throws IOException, JsonParseException
IOException
JsonParseException
public JsonToken nextValue() throws IOException, JsonParseException
JsonToken.FIELD_NAME
is returned, another
time to get the value for the field.
Method is most useful for iterating over value entries
of JSON objects; field name will still be available
by calling getCurrentName()
when parser points to
the value.JsonToken.NOT_AVAILABLE
if no tokens were
available yet)IOException
JsonParseException
public boolean nextFieldName(SerializableString str) throws IOException, JsonParseException
nextToken()
) and
verifies whether it is JsonToken.FIELD_NAME
with specified name
and returns result of that comparison.
It is functionally equivalent to:
return (nextToken() == JsonToken.FIELD_NAME) && str.getValue().equals(getCurrentName());but may be faster for parser to verify, and can therefore be used if caller expects to get such a property name from input next.
str
- Property name to compare next token to (if next token is JsonToken.FIELD_NAME)
IOException
JsonParseException
public String nextTextValue() throws IOException, JsonParseException
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.
IOException
JsonParseException
public int nextIntValue(int defaultValue) throws IOException, JsonParseException
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 a String value next from input.
IOException
JsonParseException
public long nextLongValue(long defaultValue) throws IOException, JsonParseException
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 String value next from input.
IOException
JsonParseException
public Boolean nextBooleanValue() throws IOException, JsonParseException
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 String value next from input.
IOException
JsonParseException
public abstract JsonParser skipChildren() throws IOException, JsonParseException
JsonToken.START_OBJECT
or JsonToken.START_ARRAY
.
If not, it will do nothing.
After skipping, stream will point to matching
JsonToken.END_OBJECT
or JsonToken.END_ARRAY
(possibly skipping nested pairs of START/END OBJECT/ARRAY tokens
as well as value tokens).
The idea is that after calling this method, application
will call nextToken()
to point to the next
available token, if any.IOException
JsonParseException
public abstract boolean isClosed()
nextToken()
(and the underlying
stream may be closed). Closing may be due to an explicit
call to close()
or because parser has encountered
end of input.public JsonToken getCurrentToken()
public boolean hasCurrentToken()
parser.getCurrentToken() != null
.nextToken()
; false otherwise (parser
was just constructed, encountered end-of-input
and returned null from nextToken()
, or the token
has been consumed)public void clearCurrentToken()
hasCurrentToken()
returns false, and
getCurrentToken()
null).
Cleared token value can still be accessed by calling
getLastClearedToken()
(if absolutely needed), but
usually isn't.
Method was added to be used by the optional data binder, since it has to be able to consume last token used for binding (so that it will not be used again).
public abstract String getCurrentName() throws IOException, JsonParseException
JsonToken.FIELD_NAME
s it will
be the same as what getText()
returns;
for field values it will be preceding field name;
and for others (array values, root-level values) null.IOException
JsonParseException
public abstract JsonStreamContext getParsingContext()
public abstract JsonLocation getTokenLocation()
public abstract JsonLocation getCurrentLocation()
public JsonToken getLastClearedToken()
clearCurrentToken()
. This is not necessarily
the latest token read.
Will return null if no tokens have been cleared,
or if parser has been closed.public boolean isExpectedStartArrayToken()
JsonToken.START_ARRAY
) when start array is expected.
For some specialized parsers this can return true for other cases
as well; this is usually done to emulate arrays.
Default implementation is equivalent to:
getCurrentToken() == JsonToken.START_ARRAYbut may be overridden by custom parser implementations.
JsonToken.START_ARRAY
);
false if not.public abstract String getText() throws IOException, JsonParseException
nextToken()
, or
after encountering end-of-input), returns null.
Method can be called for any token type.IOException
JsonParseException
public abstract char[] getTextCharacters() throws IOException, JsonParseException
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:
getTextOffset()
) to
know the actual offset
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 getText()
)
is to avoid construction of a String object (which
will make a copy of contents).
IOException
JsonParseException
public abstract int getTextLength() throws IOException, JsonParseException
getTextCharacters()
, to know length
of String stored in returned buffer.getTextCharacters()
that are part of
textual content of the current token.IOException
JsonParseException
public abstract int getTextOffset() throws IOException, JsonParseException
getTextCharacters()
, to know offset
of the first text content character within buffer.getTextCharacters()
that is part of
textual content of the current token.IOException
JsonParseException
public boolean hasTextCharacters()
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.
getTextCharacters()
; false
means that it may or may not existpublic abstract Number getNumberValue() throws IOException, JsonParseException
IOException
JsonParseException
public abstract JsonParser.NumberType getNumberType() throws IOException, JsonParseException
JsonToken.VALUE_NUMBER_INT
or
JsonToken.VALUE_NUMBER_FLOAT
, returns
one of JsonParser.NumberType
constants; otherwise returns null.IOException
JsonParseException
public byte getByteValue() throws IOException, JsonParseException
JsonToken.VALUE_NUMBER_INT
and
it can be expressed as a value of Java byte primitive type.
It can also be called for JsonToken.VALUE_NUMBER_FLOAT
;
if so, it is equivalent to calling getDoubleValue()
and then casting; except for possible overflow/underflow
exception.
Note: if the resulting integer value falls outside range of
Java byte, a JsonParseException
will be thrown to indicate numeric overflow/underflow.
IOException
JsonParseException
public short getShortValue() throws IOException, JsonParseException
JsonToken.VALUE_NUMBER_INT
and
it can be expressed as a value of Java short primitive type.
It can also be called for JsonToken.VALUE_NUMBER_FLOAT
;
if so, it is equivalent to calling getDoubleValue()
and then casting; except for possible overflow/underflow
exception.
Note: if the resulting integer value falls outside range of
Java short, a JsonParseException
will be thrown to indicate numeric overflow/underflow.
IOException
JsonParseException
public abstract int getIntValue() throws IOException, JsonParseException
JsonToken.VALUE_NUMBER_INT
and
it can be expressed as a value of Java int primitive type.
It can also be called for JsonToken.VALUE_NUMBER_FLOAT
;
if so, it is equivalent to calling getDoubleValue()
and then casting; except for possible overflow/underflow
exception.
Note: if the resulting integer value falls outside range of
Java int, a JsonParseException
may be thrown to indicate numeric overflow/underflow.
IOException
JsonParseException
public abstract long getLongValue() throws IOException, JsonParseException
JsonToken.VALUE_NUMBER_INT
and
it can be expressed as a Java long primitive type.
It can also be called for JsonToken.VALUE_NUMBER_FLOAT
;
if so, it is equivalent to calling getDoubleValue()
and then casting to int; except for possible overflow/underflow
exception.
Note: if the token is an integer, but its value falls
outside of range of Java long, a JsonParseException
may be thrown to indicate numeric overflow/underflow.
IOException
JsonParseException
public abstract BigInteger getBigIntegerValue() throws IOException, JsonParseException
JsonToken.VALUE_NUMBER_INT
and
it can not be used as a Java long primitive type due to its
magnitude.
It can also be called for JsonToken.VALUE_NUMBER_FLOAT
;
if so, it is equivalent to calling getDecimalValue()
and then constructing a BigInteger
from that value.IOException
JsonParseException
public abstract float getFloatValue() throws IOException, JsonParseException
JsonToken.VALUE_NUMBER_FLOAT
and
it can be expressed as a Java float primitive type.
It can also be called for JsonToken.VALUE_NUMBER_INT
;
if so, it is equivalent to calling getLongValue()
and then casting; except for possible overflow/underflow
exception.
Note: if the value falls
outside of range of Java float, a JsonParseException
will be thrown to indicate numeric overflow/underflow.
IOException
JsonParseException
public abstract double getDoubleValue() throws IOException, JsonParseException
JsonToken.VALUE_NUMBER_FLOAT
and
it can be expressed as a Java double primitive type.
It can also be called for JsonToken.VALUE_NUMBER_INT
;
if so, it is equivalent to calling getLongValue()
and then casting; except for possible overflow/underflow
exception.
Note: if the value falls
outside of range of Java double, a JsonParseException
will be thrown to indicate numeric overflow/underflow.
IOException
JsonParseException
public abstract BigDecimal getDecimalValue() throws IOException, JsonParseException
JsonToken.VALUE_NUMBER_FLOAT
or
JsonToken.VALUE_NUMBER_INT
. No under/overflow exceptions
are ever thrown.IOException
JsonParseException
public boolean getBooleanValue() throws IOException, JsonParseException
JsonToken.VALUE_TRUE
or
JsonToken.VALUE_FALSE
.
Note: if the token is not of above-mentioned boolean types,
an integer, but its value falls
outside of range of Java long, a JsonParseException
may be thrown to indicate numeric overflow/underflow.
IOException
JsonParseException
public Object getEmbeddedObject() throws IOException, JsonParseException
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).
IOException
JsonParseException
public abstract byte[] getBinaryValue(Base64Variant b64variant) throws IOException, JsonParseException
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.
b64variant
- Expected variant of base64 encoded
content (see Base64Variants
for definitions
of "standard" variants).IOException
JsonParseException
public byte[] getBinaryValue() throws IOException, JsonParseException
getBinaryValue(Base64Variant)
that defaults to using
Base64Variants.getDefaultVariant()
as the default encoding.IOException
JsonParseException
public int getValueAsInt() throws IOException, JsonParseException
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.
IOException
JsonParseException
public int getValueAsInt(int defaultValue) throws IOException, JsonParseException
If representation can not be converted to an int (including structured type markers like start/end Object/Array) specified defaultValue will be returned; no exceptions are thrown.
IOException
JsonParseException
public long getValueAsLong() throws IOException, JsonParseException
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.
IOException
JsonParseException
public long getValueAsLong(long defaultValue) throws IOException, JsonParseException
If representation can not be converted to an int (including structured type markers like start/end Object/Array) specified defaultValue will be returned; no exceptions are thrown.
IOException
JsonParseException
public double getValueAsDouble() throws IOException, JsonParseException
If representation can not be converted to an int (including structured types like Objects and Arrays), default value of 0.0 will be returned; no exceptions are thrown.
IOException
JsonParseException
public double getValueAsDouble(double defaultValue) throws IOException, JsonParseException
If representation can not be converted to an int (including structured types like Objects and Arrays), specified defaultValue will be returned; no exceptions are thrown.
IOException
JsonParseException
public boolean getValueAsBoolean() throws IOException, JsonParseException
If representation can not be converted to a boolean value (including structured types like Objects and Arrays), default value of false will be returned; no exceptions are thrown.
IOException
JsonParseException
public boolean getValueAsBoolean(boolean defaultValue) throws IOException, JsonParseException
If representation can not be converted to a boolean value (including structured types like Objects and Arrays), specified defaultValue will be returned; no exceptions are thrown.
IOException
JsonParseException
public <T> T readValueAs(Class<T> valueType) throws IOException, JsonProcessingException
Boolean
).
Note: method can only be called if the parser has
an object codec assigned; this is true for parsers constructed
by MappingJsonFactory
but
not for JsonFactory
(unless its setCodec
method has been explicitly called).
This method may advance the event stream, for structured types
the current token will be the closing end marker (END_ARRAY,
END_OBJECT) of the bound structure. For non-structured Json types
(and for JsonToken.VALUE_EMBEDDED_OBJECT
)
stream is not advanced.
Note: this method should NOT be used if the result type is a
container (Collection
or Map
.
The reason is that due to type erasure, key and value types
can not be introspected when using this method.
IOException
JsonProcessingException
public <T> T readValueAs(TypeReference<?> valueTypeRef) throws IOException, JsonProcessingException
MappingJsonFactory
but
not for JsonFactory
(unless its setCodec
method has been explicitly called).
This method may advance the event stream, for structured types
the current token will be the closing end marker (END_ARRAY,
END_OBJECT) of the bound structure. For non-structured Json types
(and for JsonToken.VALUE_EMBEDDED_OBJECT
)
stream is not advanced.
IOException
JsonProcessingException
public <T> Iterator<T> readValuesAs(Class<T> valueType) throws IOException, JsonProcessingException
IOException
JsonProcessingException
public <T> Iterator<T> readValuesAs(TypeReference<?> valueTypeRef) throws IOException, JsonProcessingException
IOException
JsonProcessingException
public JsonNode readValueAsTree() throws IOException, JsonProcessingException
JsonNode
of resulting model.
For JSON Arrays it will an array node (with child nodes),
for objects object node (with child nodes), and for other types
matching leaf node typeIOException
JsonProcessingException
protected JsonParseException _constructError(String msg)
JsonParseException
s
based on current state of the parser