BsonTypeClassMap (mongo-java-driver 3.12.10 API)乐学网一站式学习平台

java.lang.Object
- org.bson.codecs.BsonTypeClassMap

```
public class BsonTypeClassMap
extends Object
```
A map from a BSON types to the Class to which it should be decoded. This class is useful if, for example, you want to change the default decoding of BSON DATE to something besides java.util.Date.

The default mappings are:
- DOCUMENT: org.bson.Document.class
- ARRAY: java.util.List.class
- DATE_TIME: java.util.Date.class
- BOOLEAN: java.lang.Boolean.class
- DOUBLE: java.lang.Double.class
- INT32: java.lang.Integer.class
- INT64: java.lang.Long.class
- DECIMAL128: org.bson.types.Decimal128.class
- STRING: java.lang.String.class
- BINARY: org.bson.types.Binary.class
- OBJECT_ID: org.bson.types.ObjectId.class
- REGULAR_EXPRESSION: org.bson.types.RegularExpression.class
- SYMBOL: org.bson.types.Symbol.class
- DB_POINTER: org.bson.types.DBPointer.class
- MAX_KEY: org.bson.types.MaxKey.class
- MIN_KEY: org.bson.types.MinKey.class
- JAVASCRIPT: org.bson.types.Code.class
- JAVASCRIPT_WITH_SCOPE: org.bson.types.CodeWithScope.class
- TIMESTAMP: org.bson.types.BSONTimestamp.class
- UNDEFINED: org.bson.types.Undefined.class
Since:

3.0

Constructor Summary

Constructors
Constructor	Description
`BsonTypeClassMap()`	Construct an instance with the default mappings.
`BsonTypeClassMap(Map<BsonType,Class<?>> replacementsForDefaults)`	Construct an instance with the default mapping, but replacing the default mapping with any values contained in the given map.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object o)`
`Class<?>`	`get(BsonType bsonType)`	Gets the Class that is mapped to the given BSON type.
`int`	`hashCode()`

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

- Constructor Detail
  - BsonTypeClassMap
```
public BsonTypeClassMap(Map<BsonType,Class<?>> replacementsForDefaults)
```
    Construct an instance with the default mapping, but replacing the default mapping with any values contained in the given map. This allows a caller to easily replace a single or a few mappings, while leaving the rest at their default values.
    
    Parameters:
    
    replacementsForDefaults - the replacement mappings
  - BsonTypeClassMap
```
public BsonTypeClassMap()
```
    Construct an instance with the default mappings.
- Method Detail
  - get
```
public Class<?> get(BsonType bsonType)
```
    Gets the Class that is mapped to the given BSON type.
    
    Parameters:
    
    bsonType - the BSON type
    
    Returns:
    
    the Class that is mapped to the BSON type
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object