JsonReader

java.lang.Object
- org.bson.AbstractBsonReader
- - org.bson.json.JsonReader

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, BsonReader
```
public class JsonReader
extends AbstractBsonReader
```
Reads a JSON in one of the following modes:
- Strict mode that conforms to the JSON RFC specifications.
- JavaScript mode that that most JavaScript interpreters can process
- Shell mode that the mongo shell can process. This is also called "extended" JavaScript format.
For more information about this modes please see http://docs.mongodb.org/manual/reference/mongodb-extended-json/
Since:

3.0

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

protected class JsonReader.Context

protected class JsonReader.Mark
- Nested classes/interfaces inherited from class org.bson.AbstractBsonReader
  AbstractBsonReader.State

Nested Classes
Modifier and Type	Class and Description
`protected class`	`JsonReader.Context`
`protected class`	`JsonReader.Mark`

Field Summary

Fields
Modifier and Type Field and Description

private java.lang.Object currentValue

private JsonReader.Mark mark

private JsonToken pushedToken

private JsonScanner scanner

Fields
Modifier and Type	Field and Description
`private java.lang.Object`	`currentValue`
`private JsonReader.Mark`	`mark`
`private JsonToken`	`pushedToken`
`private JsonScanner`	`scanner`

Constructor Summary

Constructors
Constructor and Description

JsonReader(java.lang.String json)
Constructs a new instance with the given JSON string.

Constructors
Constructor and Description
`JsonReader(java.lang.String json)` Constructs a new instance with the given JSON string.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected int`	`doPeekBinarySize()` Handles the logic to peek at the binary size.
`protected byte`	`doPeekBinarySubType()` Handles the logic to peek at the binary subtype.
`protected BsonBinary`	`doReadBinaryData()` Handles the logic to read binary data
`protected boolean`	`doReadBoolean()` Handles the logic to read booleans
`protected long`	`doReadDateTime()` Handles the logic to read date time
`protected BsonDbPointer`	`doReadDBPointer()` Handles the logic to read a DBPointer
`Decimal128`	`doReadDecimal128()` Handles the logic to read Decimal128
`protected double`	`doReadDouble()` Handles the logic to read doubles
`protected void`	`doReadEndArray()` Handles the logic when reading the end of an array
`protected void`	`doReadEndDocument()` Handles the logic when reading the end of a document
`protected int`	`doReadInt32()` Handles the logic to read 32 bit ints
`protected long`	`doReadInt64()` Handles the logic to read 64 bit ints
`protected java.lang.String`	`doReadJavaScript()` Handles the logic to read Javascript functions
`protected java.lang.String`	`doReadJavaScriptWithScope()` Handles the logic to read scoped Javascript functions
`protected void`	`doReadMaxKey()` Handles the logic to read a Max key
`protected void`	`doReadMinKey()` Handles the logic to read a Min key
`protected void`	`doReadNull()` Handles the logic to read a null value
`protected ObjectId`	`doReadObjectId()` Handles the logic to read an ObjectId
`protected BsonRegularExpression`	`doReadRegularExpression()` Handles the logic to read a regular expression
`protected void`	`doReadStartArray()` Handles the logic to read the start of an array
`protected void`	`doReadStartDocument()` Handles the logic to read the start of a document
`protected java.lang.String`	`doReadString()` Handles the logic to read a String
`protected java.lang.String`	`doReadSymbol()` Handles the logic to read a Symbol
`protected BsonTimestamp`	`doReadTimestamp()` Handles the logic to read a timestamp
`protected void`	`doReadUndefined()` Handles the logic to read an Undefined value
`protected void`	`doSkipName()` Handles any logic required to skip the name (reader must be positioned on a name).
`protected void`	`doSkipValue()` Handles any logic required to skip the value (reader must be positioned on a value).
`protected JsonReader.Context`	`getContext()` Get the context, which will indicate which state the reader is in, for example which part of a document it's currently reading.
`void`	`mark()` Creates a bookmark in the BsonReader's input The previous mark must be cleared before creating a new one
`private JsonToken`	`popToken()`
`private void`	`pushToken(JsonToken token)`
`BsonType`	`readBsonType()` Reads a BSONType from the reader.
`void`	`reset()` Go back to the state at the last mark and removes the mark
`private void`	`verifyString(java.lang.String expected)`
`private void`	`verifyToken(java.lang.Object expected)`
`private BsonBinary`	`visitBinDataConstructor()`
`private BsonBinary`	`visitBinDataExtendedJson()`
`private long`	`visitDateTimeConstructor()`
`private java.lang.String`	`visitDateTimeConstructorWithOutNew()`
`private long`	`visitDateTimeExtendedJson()`
`private BsonDbPointer`	`visitDBPointerConstructor()`
`private void`	`visitExtendedJSON()`
`private BsonBinary`	`visitHexDataConstructor()`
`private long`	`visitISODateTimeConstructor()`
`private void`	`visitJavaScriptExtendedJson()`
`private MaxKey`	`visitMaxKeyExtendedJson()`
`private MinKey`	`visitMinKeyExtendedJson()`
`private void`	`visitNew()`
`private Decimal128`	`visitNumberDecimalConstructor()`
`private Decimal128`	`visitNumberDecimalExtendedJson()`
`private long`	`visitNumberLongConstructor()`
`private java.lang.Long`	`visitNumberLongExtendedJson()`
`private ObjectId`	`visitObjectIdConstructor()`
`private ObjectId`	`visitObjectIdExtendedJson()`
`private BsonRegularExpression`	`visitRegularExpressionConstructor()`
`private BsonRegularExpression`	`visitRegularExpressionExtendedJson()`
`private java.lang.String`	`visitSymbolExtendedJson()`
`private BsonTimestamp`	`visitTimestampConstructor()`
`private BsonTimestamp`	`visitTimestampExtendedJson()`
`private BsonUndefined`	`visitUndefinedExtendedJson()`
`private BsonBinary`	`visitUUIDConstructor(java.lang.String uuidConstructorName)`

Methods inherited from class org.bson.AbstractBsonReader
checkPreconditions, close, getCurrentBsonType, getCurrentName, getNextState, getState, isClosed, peekBinarySize, peekBinarySubType, readBinaryData, readBinaryData, readBoolean, readBoolean, readDateTime, readDateTime, readDBPointer, readDBPointer, readDecimal128, readDecimal128, readDouble, readDouble, readEndArray, readEndDocument, readInt32, readInt32, readInt64, readInt64, readJavaScript, readJavaScript, readJavaScriptWithScope, readJavaScriptWithScope, readMaxKey, readMaxKey, readMinKey, readMinKey, readName, readName, readNull, readNull, readObjectId, readObjectId, readRegularExpression, readRegularExpression, readStartArray, readStartDocument, readString, readString, readSymbol, readSymbol, readTimestamp, readTimestamp, readUndefined, readUndefined, setContext, setCurrentBsonType, setCurrentName, setState, skipName, skipValue, throwInvalidContextType, throwInvalidState, verifyBSONType, verifyName

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

- Field Detail
  - scanner
```
private final JsonScanner scanner
```
  - pushedToken
```
private JsonToken pushedToken
```
  - currentValue
```
private java.lang.Object currentValue
```
  - mark
```
private JsonReader.Mark mark
```
- Constructor Detail
  - JsonReader
```
public JsonReader(java.lang.String json)
```
    Constructs a new instance with the given JSON string.
    
    Parameters:
    
    json - A string representation of a JSON.
- Method Detail
  - doReadBinaryData
```
protected BsonBinary doReadBinaryData()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read binary data
    
    Specified by:
    
    doReadBinaryData in class AbstractBsonReader
    
    Returns:
    
    the BsonBinary value
  - doPeekBinarySubType
```
protected byte doPeekBinarySubType()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to peek at the binary subtype.
    
    Specified by:
    
    doPeekBinarySubType in class AbstractBsonReader
    
    Returns:
    
    the binary subtype
  - doPeekBinarySize
```
protected int doPeekBinarySize()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to peek at the binary size.
    
    Specified by:
    
    doPeekBinarySize in class AbstractBsonReader
    
    Returns:
    
    the binary size
  - doReadBoolean
```
protected boolean doReadBoolean()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read booleans
    
    Specified by:
    
    doReadBoolean in class AbstractBsonReader
    
    Returns:
    
    the boolean value
  - readBsonType
```
public BsonType readBsonType()
```
    Description copied from interface: BsonReader
    
    Reads a BSONType from the reader.
    
    Specified by:
    
    readBsonType in interface BsonReader
    
    Specified by:
    
    readBsonType in class AbstractBsonReader
    
    Returns:
    
    A BSONType.
  - doReadDecimal128
```
public Decimal128 doReadDecimal128()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read Decimal128
    
    Specified by:
    
    doReadDecimal128 in class AbstractBsonReader
    
    Returns:
    
    the Decimal128 value
  - doReadDateTime
```
protected long doReadDateTime()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read date time
    
    Specified by:
    
    doReadDateTime in class AbstractBsonReader
    
    Returns:
    
    the long value
  - doReadDouble
```
protected double doReadDouble()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read doubles
    
    Specified by:
    
    doReadDouble in class AbstractBsonReader
    
    Returns:
    
    the double value
  - doReadEndArray
```
protected void doReadEndArray()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic when reading the end of an array
    
    Specified by:
    
    doReadEndArray in class AbstractBsonReader
  - doReadEndDocument
```
protected void doReadEndDocument()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic when reading the end of a document
    
    Specified by:
    
    doReadEndDocument in class AbstractBsonReader
  - doReadInt32
```
protected int doReadInt32()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read 32 bit ints
    
    Specified by:
    
    doReadInt32 in class AbstractBsonReader
    
    Returns:
    
    the int value
  - doReadInt64
```
protected long doReadInt64()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read 64 bit ints
    
    Specified by:
    
    doReadInt64 in class AbstractBsonReader
    
    Returns:
    
    the long value
  - doReadJavaScript
```
protected java.lang.String doReadJavaScript()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read Javascript functions
    
    Specified by:
    
    doReadJavaScript in class AbstractBsonReader
    
    Returns:
    
    the String value
  - doReadJavaScriptWithScope
```
protected java.lang.String doReadJavaScriptWithScope()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read scoped Javascript functions
    
    Specified by:
    
    doReadJavaScriptWithScope in class AbstractBsonReader
    
    Returns:
    
    the String value
  - doReadMaxKey
```
protected void doReadMaxKey()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read a Max key
    
    Specified by:
    
    doReadMaxKey in class AbstractBsonReader
  - doReadMinKey
```
protected void doReadMinKey()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read a Min key
    
    Specified by:
    
    doReadMinKey in class AbstractBsonReader
  - doReadNull
```
protected void doReadNull()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read a null value
    
    Specified by:
    
    doReadNull in class AbstractBsonReader
  - doReadObjectId
```
protected ObjectId doReadObjectId()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read an ObjectId
    
    Specified by:
    
    doReadObjectId in class AbstractBsonReader
    
    Returns:
    
    the ObjectId value
  - doReadRegularExpression
```
protected BsonRegularExpression doReadRegularExpression()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read a regular expression
    
    Specified by:
    
    doReadRegularExpression in class AbstractBsonReader
    
    Returns:
    
    the BsonRegularExpression value
  - doReadDBPointer
```
protected BsonDbPointer doReadDBPointer()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read a DBPointer
    
    Specified by:
    
    doReadDBPointer in class AbstractBsonReader
    
    Returns:
    
    the BsonDbPointer value
  - doReadStartArray
```
protected void doReadStartArray()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read the start of an array
    
    Specified by:
    
    doReadStartArray in class AbstractBsonReader
  - doReadStartDocument
```
protected void doReadStartDocument()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read the start of a document
    
    Specified by:
    
    doReadStartDocument in class AbstractBsonReader
  - doReadString
```
protected java.lang.String doReadString()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read a String
    
    Specified by:
    
    doReadString in class AbstractBsonReader
    
    Returns:
    
    the String value
  - doReadSymbol
```
protected java.lang.String doReadSymbol()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read a Symbol
    
    Specified by:
    
    doReadSymbol in class AbstractBsonReader
    
    Returns:
    
    the String value
  - doReadTimestamp
```
protected BsonTimestamp doReadTimestamp()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read a timestamp
    
    Specified by:
    
    doReadTimestamp in class AbstractBsonReader
    
    Returns:
    
    the BsonTimestamp value
  - doReadUndefined
```
protected void doReadUndefined()
```
    Description copied from class: AbstractBsonReader
    
    Handles the logic to read an Undefined value
    
    Specified by:
    
    doReadUndefined in class AbstractBsonReader
  - doSkipName
```
protected void doSkipName()
```
    Description copied from class: AbstractBsonReader
    
    Handles any logic required to skip the name (reader must be positioned on a name).
    
    Specified by:
    
    doSkipName in class AbstractBsonReader
  - doSkipValue
```
protected void doSkipValue()
```
    Description copied from class: AbstractBsonReader
    
    Handles any logic required to skip the value (reader must be positioned on a value).
    
    Specified by:
    
    doSkipValue in class AbstractBsonReader
  - popToken
```
private JsonToken popToken()
```
  - pushToken
```
private void pushToken(JsonToken token)
```
  - verifyToken
```
private void verifyToken(java.lang.Object expected)
```
  - verifyString
```
private void verifyString(java.lang.String expected)
```
  - visitNew
```
private void visitNew()
```
  - visitExtendedJSON
```
private void visitExtendedJSON()
```
  - visitBinDataConstructor
```
private BsonBinary visitBinDataConstructor()
```
  - visitUUIDConstructor
```
private BsonBinary visitUUIDConstructor(java.lang.String uuidConstructorName)
```
  - visitRegularExpressionConstructor
```
private BsonRegularExpression visitRegularExpressionConstructor()
```
  - visitObjectIdConstructor
```
private ObjectId visitObjectIdConstructor()
```
  - visitTimestampConstructor
```
private BsonTimestamp visitTimestampConstructor()
```
  - visitDBPointerConstructor
```
private BsonDbPointer visitDBPointerConstructor()
```
  - visitNumberLongConstructor
```
private long visitNumberLongConstructor()
```
  - visitNumberDecimalConstructor
```
private Decimal128 visitNumberDecimalConstructor()
```
  - visitISODateTimeConstructor
```
private long visitISODateTimeConstructor()
```
  - visitHexDataConstructor
```
private BsonBinary visitHexDataConstructor()
```
  - visitDateTimeConstructor
```
private long visitDateTimeConstructor()
```
  - visitDateTimeConstructorWithOutNew
```
private java.lang.String visitDateTimeConstructorWithOutNew()
```
  - visitBinDataExtendedJson
```
private BsonBinary visitBinDataExtendedJson()
```
  - visitDateTimeExtendedJson
```
private long visitDateTimeExtendedJson()
```
  - visitMaxKeyExtendedJson
```
private MaxKey visitMaxKeyExtendedJson()
```
  - visitMinKeyExtendedJson
```
private MinKey visitMinKeyExtendedJson()
```
  - visitObjectIdExtendedJson
```
private ObjectId visitObjectIdExtendedJson()
```
  - visitRegularExpressionExtendedJson
```
private BsonRegularExpression visitRegularExpressionExtendedJson()
```
  - visitSymbolExtendedJson
```
private java.lang.String visitSymbolExtendedJson()
```
  - visitTimestampExtendedJson
```
private BsonTimestamp visitTimestampExtendedJson()
```
  - visitJavaScriptExtendedJson
```
private void visitJavaScriptExtendedJson()
```
  - visitUndefinedExtendedJson
```
private BsonUndefined visitUndefinedExtendedJson()
```
  - visitNumberLongExtendedJson
```
private java.lang.Long visitNumberLongExtendedJson()
```
  - visitNumberDecimalExtendedJson
```
private Decimal128 visitNumberDecimalExtendedJson()
```
  - mark
```
public void mark()
```
    Description copied from interface: BsonReader
    
    Creates a bookmark in the BsonReader's input The previous mark must be cleared before creating a new one
  - reset
```
public void reset()
```
    Description copied from interface: BsonReader
    
    Go back to the state at the last mark and removes the mark
  - getContext
```
protected JsonReader.Context getContext()
```
    Description copied from class: AbstractBsonReader
    
    Get the context, which will indicate which state the reader is in, for example which part of a document it's currently reading.
    
    Overrides:
    
    getContext in class AbstractBsonReader
    
    Returns:
    
    the context

Class JsonReader

Nested Class Summary

Nested classes/interfaces inherited from class org.bson.AbstractBsonReader

Field Summary

Constructor Summary

Method Summary

Methods inherited from class org.bson.AbstractBsonReader

Methods inherited from class java.lang.Object

Field Detail

scanner

pushedToken

currentValue

mark

Constructor Detail

JsonReader

Method Detail

doReadBinaryData

doPeekBinarySubType

doPeekBinarySize

doReadBoolean

readBsonType

doReadDecimal128

doReadDateTime

doReadDouble

doReadEndArray

doReadEndDocument

doReadInt32

doReadInt64

doReadJavaScript

doReadJavaScriptWithScope

doReadMaxKey

doReadMinKey

doReadNull

doReadObjectId

doReadRegularExpression

doReadDBPointer

doReadStartArray

doReadStartDocument

doReadString

doReadSymbol

doReadTimestamp

doReadUndefined

doSkipName

doSkipValue

popToken

pushToken

verifyToken

verifyString

visitNew

visitExtendedJSON

visitBinDataConstructor

visitUUIDConstructor

visitRegularExpressionConstructor

visitObjectIdConstructor

visitTimestampConstructor

visitDBPointerConstructor

visitNumberLongConstructor

visitNumberDecimalConstructor

visitISODateTimeConstructor

visitHexDataConstructor

visitDateTimeConstructor

visitDateTimeConstructorWithOutNew

visitBinDataExtendedJson

visitDateTimeExtendedJson

visitMaxKeyExtendedJson

visitMinKeyExtendedJson

visitObjectIdExtendedJson

visitRegularExpressionExtendedJson

visitSymbolExtendedJson

visitTimestampExtendedJson

visitJavaScriptExtendedJson

visitUndefinedExtendedJson

visitNumberLongExtendedJson

visitNumberDecimalExtendedJson

mark

reset

getContext