All Superinterfaces:

AutoCloseable, Closeable

All Known Implementing Classes:

AbstractBsonReader, BsonBinaryReader, BsonDocumentReader, JsonReader
```
public interface BsonReader
extends Closeable
```
An interface for reading a logical BSON document using a pull-oriented API.

Since:

3.0

Method Summary

All Methods Instance Methods Abstract Methods Deprecated Methods
Modifier and Type	Method	Description
`void`	`close()`
`BsonType`	`getCurrentBsonType()`
`String`	`getCurrentName()`	Gets the most recently read name.
`BsonReaderMark`	`getMark()`	Gets a mark representing the current state of the reader.
`void`	`mark()`	Deprecated. Use `getMark()` instead
`int`	`peekBinarySize()`	Peeks the size of the binary data that the reader is positioned at.
`byte`	`peekBinarySubType()`	Peeks the subtype of the binary data that the reader is positioned at.
`BsonBinary`	`readBinaryData()`	Reads BSON Binary data from the reader.
`BsonBinary`	`readBinaryData(String name)`	Reads a BSON Binary data element from the reader.
`boolean`	`readBoolean()`	Reads a BSON Boolean from the reader.
`boolean`	`readBoolean(String name)`	Reads a BSON Boolean element from the reader.
`BsonType`	`readBsonType()`	Reads a BSONType from the reader.
`long`	`readDateTime()`	Reads a BSON DateTime from the reader.
`long`	`readDateTime(String name)`	Reads a BSON DateTime element from the reader.
`BsonDbPointer`	`readDBPointer()`	Reads a BSON DBPointer from the reader.
`BsonDbPointer`	`readDBPointer(String name)`	Reads a BSON DBPointer element from the reader.
`Decimal128`	`readDecimal128()`	Reads a BSON Decimal128 from the reader.
`Decimal128`	`readDecimal128(String name)`	Reads a BSON Decimal128 element from the reader.
`double`	`readDouble()`	Reads a BSON Double from the reader.
`double`	`readDouble(String name)`	Reads a BSON Double element from the reader.
`void`	`readEndArray()`	Reads the end of a BSON array from the reader.
`void`	`readEndDocument()`	Reads the end of a BSON document from the reader.
`int`	`readInt32()`	Reads a BSON Int32 from the reader.
`int`	`readInt32(String name)`	Reads a BSON Int32 element from the reader.
`long`	`readInt64()`	Reads a BSON Int64 from the reader.
`long`	`readInt64(String name)`	Reads a BSON Int64 element from the reader.
`String`	`readJavaScript()`	Reads a BSON JavaScript from the reader.
`String`	`readJavaScript(String name)`	Reads a BSON JavaScript element from the reader.
`String`	`readJavaScriptWithScope()`	Reads a BSON JavaScript with scope from the reader (call readStartDocument next to read the scope).
`String`	`readJavaScriptWithScope(String name)`	Reads a BSON JavaScript with scope element from the reader (call readStartDocument next to read the scope).
`void`	`readMaxKey()`	Reads a BSON MaxKey from the reader.
`void`	`readMaxKey(String name)`	Reads a BSON MaxKey element from the reader.
`void`	`readMinKey()`	Reads a BSON MinKey from the reader.
`void`	`readMinKey(String name)`	Reads a BSON MinKey element from the reader.
`String`	`readName()`	Reads the name of an element from the reader.
`void`	`readName(String name)`	Reads the name of an element from the reader.
`void`	`readNull()`	Reads a BSON null from the reader.
`void`	`readNull(String name)`	Reads a BSON null element from the reader.
`ObjectId`	`readObjectId()`	Reads a BSON ObjectId from the reader.
`ObjectId`	`readObjectId(String name)`	Reads a BSON ObjectId element from the reader.
`BsonRegularExpression`	`readRegularExpression()`	Reads a BSON regular expression from the reader.
`BsonRegularExpression`	`readRegularExpression(String name)`	Reads a BSON regular expression element from the reader.
`void`	`readStartArray()`	Reads the start of a BSON array.
`void`	`readStartDocument()`	Reads the start of a BSON document.
`String`	`readString()`	Reads a BSON String from the reader.
`String`	`readString(String name)`	Reads a BSON string element from the reader.
`String`	`readSymbol()`	Reads a BSON symbol from the reader.
`String`	`readSymbol(String name)`	Reads a BSON symbol element from the reader.
`BsonTimestamp`	`readTimestamp()`	Reads a BSON timestamp from the reader.
`BsonTimestamp`	`readTimestamp(String name)`	Reads a BSON timestamp element from the reader.
`void`	`readUndefined()`	Reads a BSON undefined from the reader.
`void`	`readUndefined(String name)`	Reads a BSON undefined element from the reader.
`void`	`reset()`	Deprecated. Prefer `getMark()`
`void`	`skipName()`	Skips the name (reader must be positioned on a name).
`void`	`skipValue()`	Skips the value (reader must be positioned on a value).

- Method Detail
  - getCurrentBsonType
```
BsonType getCurrentBsonType()
```
    Returns:
    
    The current BsonType.
  - getCurrentName
```
String getCurrentName()
```
    Gets the most recently read name.
    
    Returns:
    
    the most recently read name
  - readBinaryData
```
BsonBinary readBinaryData()
```
    Reads BSON Binary data from the reader.
    
    Returns:
    
    A Binary.
  - peekBinarySubType
```
byte peekBinarySubType()
```
    Peeks the subtype of the binary data that the reader is positioned at. This operation is not permitted if the mark is already set.
    
    Returns:
    
    the subtype
    
    See Also:
    
    mark()
  - peekBinarySize
```
int peekBinarySize()
```
    Peeks the size of the binary data that the reader is positioned at. This operation is not permitted if the mark is already set.
    
    Returns:
    
    the size of the binary data
    
    Since:
    
    3.4
    
    See Also:
    
    mark()
  - readBinaryData
```
BsonBinary readBinaryData(String name)
```
    Reads a BSON Binary data element from the reader.
    
    Parameters:
    
    name - The name of the element.
    
    Returns:
    
    A Binary.
  - readBoolean
```
boolean readBoolean()
```
    Reads a BSON Boolean from the reader.
    
    Returns:
    
    A Boolean.
  - readBoolean
```
boolean readBoolean(String name)
```
    Reads a BSON Boolean element from the reader.
    
    Parameters:
    
    name - The name of the element.
    
    Returns:
    
    A Boolean.
  - readBsonType
```
BsonType readBsonType()
```
    Reads a BSONType from the reader.
    
    Returns:
    
    A BSONType.
  - readDateTime
```
long readDateTime()
```
    Reads a BSON DateTime from the reader.
    
    Returns:
    
    The number of milliseconds since the Unix epoch.
  - readDateTime
```
long readDateTime(String name)
```
    Reads a BSON DateTime element from the reader.
    
    Parameters:
    
    name - The name of the element.
    
    Returns:
    
    The number of milliseconds since the Unix epoch.
  - readDouble
```
double readDouble()
```
    Reads a BSON Double from the reader.
    
    Returns:
    
    A Double.
  - readDouble
```
double readDouble(String name)
```
    Reads a BSON Double element from the reader.
    
    Parameters:
    
    name - The name of the element.
    
    Returns:
    
    A Double.
  - readEndArray
```
void readEndArray()
```
    Reads the end of a BSON array from the reader.
  - readEndDocument
```
void readEndDocument()
```
    Reads the end of a BSON document from the reader.
  - readInt32
```
int readInt32()
```
    Reads a BSON Int32 from the reader.
    
    Returns:
    
    An Int32.
  - readInt32
```
int readInt32(String name)
```
    Reads a BSON Int32 element from the reader.
    
    Parameters:
    
    name - The name of the element.
    
    Returns:
    
    An Int32.
  - readInt64
```
long readInt64()
```
    Reads a BSON Int64 from the reader.
    
    Returns:
    
    An Int64.
  - readInt64
```
long readInt64(String name)
```
    Reads a BSON Int64 element from the reader.
    
    Parameters:
    
    name - The name of the element.
    
    Returns:
    
    An Int64.
  - readDecimal128
```
Decimal128 readDecimal128()
```
    Reads a BSON Decimal128 from the reader.
    
    Returns:
    
    A Decimal128
    
    Since:
    
    3.4
  - readDecimal128
```
Decimal128 readDecimal128(String name)
```
    Reads a BSON Decimal128 element from the reader.
    
    Parameters:
    
    name - The name of the element.
    
    Returns:
    
    A Decimal128
    
    Since:
    
    3.4
  - readJavaScript
```
String readJavaScript()
```
    Reads a BSON JavaScript from the reader.
    
    Returns:
    
    A string.
  - readJavaScript
```
String readJavaScript(String name)
```
    Reads a BSON JavaScript element from the reader.
    
    Parameters:
    
    name - The name of the element.
    
    Returns:
    
    A string.
  - readJavaScriptWithScope
```
String readJavaScriptWithScope()
```
    Reads a BSON JavaScript with scope from the reader (call readStartDocument next to read the scope).
    
    Returns:
    
    A string.
  - readJavaScriptWithScope
```
String readJavaScriptWithScope(String name)
```
    Reads a BSON JavaScript with scope element from the reader (call readStartDocument next to read the scope).
    
    Parameters:
    
    name - The name of the element.
    
    Returns:
    
    A string.
  - readMaxKey
```
void readMaxKey()
```
    Reads a BSON MaxKey from the reader.
  - readMaxKey
```
void readMaxKey(String name)
```
    Reads a BSON MaxKey element from the reader.
    
    Parameters:
    
    name - The name of the element.
  - readMinKey
```
void readMinKey()
```
    Reads a BSON MinKey from the reader.
  - readMinKey
```
void readMinKey(String name)
```
    Reads a BSON MinKey element from the reader.
    
    Parameters:
    
    name - The name of the element.
  - readName
```
String readName()
```
    Reads the name of an element from the reader.
    
    Returns:
    
    The name of the element.
  - readName
```
void readName(String name)
```
    Reads the name of an element from the reader.
    
    Parameters:
    
    name - The name of the element.
  - readNull
```
void readNull()
```
    Reads a BSON null from the reader.
  - readNull
```
void readNull(String name)
```
    Reads a BSON null element from the reader.
    
    Parameters:
    
    name - The name of the element.
  - readObjectId
```
ObjectId readObjectId()
```
    Reads a BSON ObjectId from the reader.
    
    Returns:
    
    the ObjectId value
  - readObjectId
```
ObjectId readObjectId(String name)
```
    Reads a BSON ObjectId element from the reader.
    
    Parameters:
    
    name - The name of the element.
    
    Returns:
    
    ObjectId.
  - readRegularExpression
```
BsonRegularExpression readRegularExpression()
```
    Reads a BSON regular expression from the reader.
    
    Returns:
    
    A regular expression.
  - readRegularExpression
```
BsonRegularExpression readRegularExpression(String name)
```
    Reads a BSON regular expression element from the reader.
    
    Parameters:
    
    name - The name of the element.
    
    Returns:
    
    A regular expression.
  - readDBPointer
```
BsonDbPointer readDBPointer()
```
    Reads a BSON DBPointer from the reader.
    
    Returns:
    
    A DBPointer.
  - readDBPointer
```
BsonDbPointer readDBPointer(String name)
```
    Reads a BSON DBPointer element from the reader.
    
    Parameters:
    
    name - The name of the element.
    
    Returns:
    
    A DBPointer.
  - readStartArray
```
void readStartArray()
```
    Reads the start of a BSON array.
  - readStartDocument
```
void readStartDocument()
```
    Reads the start of a BSON document.
  - readString
```
String readString()
```
    Reads a BSON String from the reader.
    
    Returns:
    
    A String.
  - readString
```
String readString(String name)
```
    Reads a BSON string element from the reader.
    
    Parameters:
    
    name - The name of the element.
    
    Returns:
    
    A String.
  - readSymbol
```
String readSymbol()
```
    Reads a BSON symbol from the reader.
    
    Returns:
    
    A string.
  - readSymbol
```
String readSymbol(String name)
```
    Reads a BSON symbol element from the reader.
    
    Parameters:
    
    name - The name of the element.
    
    Returns:
    
    A string.
  - readTimestamp
```
BsonTimestamp readTimestamp()
```
    Reads a BSON timestamp from the reader.
    
    Returns:
    
    The combined timestamp/increment.
  - readTimestamp
```
BsonTimestamp readTimestamp(String name)
```
    Reads a BSON timestamp element from the reader.
    
    Parameters:
    
    name - The name of the element.
    
    Returns:
    
    The combined timestamp/increment.
  - readUndefined
```
void readUndefined()
```
    Reads a BSON undefined from the reader.
  - readUndefined
```
void readUndefined(String name)
```
    Reads a BSON undefined element from the reader.
    
    Parameters:
    
    name - The name of the element.
  - skipName
```
void skipName()
```
    Skips the name (reader must be positioned on a name).
  - skipValue
```
void skipValue()
```
    Skips the value (reader must be positioned on a value).
  - mark
```
@Deprecated
void mark()
```
    Deprecated.
    Use getMark() instead
    
    Creates a bookmark in the BsonReader's input The previous mark must be cleared before creating a new one
  - getMark
```
BsonReaderMark getMark()
```
    Gets a mark representing the current state of the reader.
    
    Returns:
    
    the mark
    
    Since:
    
    3.5
  - reset
```
@Deprecated
void reset()
```
    Deprecated.
    Prefer getMark()
    
    Go back to the state at the last mark and removes the mark
    
    Throws:
    
    BSONException - if no mark has been set
  - close
```
void close()
```
    Specified by:
    
    close in interface AutoCloseable
    
    Specified by:
    
    close in interface Closeable

Interface BsonReader

Method Summary

Method Detail

getCurrentBsonType

getCurrentName

readBinaryData

peekBinarySubType

peekBinarySize

readBinaryData

readBoolean

readBoolean

readBsonType

readDateTime

readDateTime

readDouble

readDouble

readEndArray

readEndDocument

readInt32

readInt32

readInt64

readInt64

readDecimal128

readDecimal128

readJavaScript

readJavaScript

readJavaScriptWithScope

readJavaScriptWithScope

readMaxKey

readMaxKey

readMinKey

readMinKey

readName

readName

readNull

readNull

readObjectId

readObjectId

readRegularExpression

readRegularExpression

readDBPointer

readDBPointer

readStartArray

readStartDocument

readString

readString

readSymbol

readSymbol

readTimestamp

readTimestamp

readUndefined

readUndefined

skipName

skipValue

mark

getMark

reset

close