BasicBSONObject

java.lang.Object
- java.util.AbstractMap<K,V>
- - java.util.HashMap<K,V>
  - - java.util.LinkedHashMap<String,Object>
    - - org.bson.BasicBSONObject

All Implemented Interfaces:

Serializable, Cloneable, Map<String,Object>, BSONObject

Direct Known Subclasses:

BasicDBObject
```
public class BasicBSONObject
extends LinkedHashMap<String,Object>
implements BSONObject
```
A simple implementation of DBObject. A DBObject can be created as follows, using this class: DBObject obj = new BasicBSONObject(); obj.put( "foo", "bar" );

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from class java.util.AbstractMap
  AbstractMap.SimpleEntry<K extends Object,V extends Object>, AbstractMap.SimpleImmutableEntry<K extends Object,V extends Object>

Constructor Summary

Constructors
Constructor	Description
`BasicBSONObject()`	Creates an empty object.
`BasicBSONObject(int size)`	Creates an empty object.
`BasicBSONObject(String key, Object value)`	Creates a BSONObject initialised with a single key/value pair.
`BasicBSONObject(Map map)`	Creates a DBObject from a map.

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`BasicBSONObject`	`append(String key, Object val)`	Add a key/value pair to this object
`boolean`	`containsField(String field)`	Checks if this object contains a given field
`boolean`	`containsKey(String key)`	Deprecated.
`boolean`	`equals(Object o)`	Compares two documents according to their serialized form, ignoring the order of keys.
`Object`	`get(String key)`	Gets a value from this object
`boolean`	`getBoolean(String key)`	Returns the value of a field as a boolean.
`boolean`	`getBoolean(String key, boolean def)`	Returns the value of a field as a boolean
`Date`	`getDate(String field)`	Returns the date or null if not set.
`Date`	`getDate(String field, Date def)`	Returns the date or def if not set.
`double`	`getDouble(String key)`	Returns the value of a field as a `double`.
`double`	`getDouble(String key, double def)`	Returns the value of a field as an `double`.
`int`	`getInt(String key)`	Returns the value of a field as an `int`.
`int`	`getInt(String key, int def)`	Returns the value of a field as an `int`.
`long`	`getLong(String key)`	Returns the value of a field as a `long`.
`long`	`getLong(String key, long def)`	Returns the value of a field as an `long`.
`ObjectId`	`getObjectId(String field)`	Returns the object id or null if not set.
`ObjectId`	`getObjectId(String field, ObjectId def)`	Returns the object id or def if not set.
`String`	`getString(String key)`	Returns the value of a field as a string
`String`	`getString(String key, String def)`	Returns the value of a field as a string
`int`	`hashCode()`
`void`	`putAll(Map m)`	Sets all key/value pairs from a map into this object
`void`	`putAll(BSONObject o)`	Sets all key/value pairs from an object into this object
`Object`	`removeField(String key)`	Deletes a field from this object.
`Map`	`toMap()`	Converts a DBObject to a map.

Methods inherited from class java.util.AbstractMap
toString

Methods inherited from interface org.bson.BSONObject
keySet, put

Methods inherited from class java.util.HashMap
clone, compute, computeIfAbsent, computeIfPresent, containsKey, isEmpty, merge, put, putIfAbsent, remove, remove, replace, replace, size

Methods inherited from class java.util.LinkedHashMap
clear, containsValue, entrySet, forEach, get, getOrDefault, keySet, removeEldestEntry, replaceAll, values

Methods inherited from interface java.util.Map
compute, computeIfAbsent, computeIfPresent, containsKey, entry, isEmpty, merge, of, of, of, of, of, of, of, of, of, of, of, ofEntries, put, putIfAbsent, remove, remove, replace, replace, size

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

- Constructor Detail
  - BasicBSONObject
```
public BasicBSONObject()
```
    Creates an empty object.
  - BasicBSONObject
```
public BasicBSONObject(int size)
```
    Creates an empty object.
    
    Parameters:
    
    size - the initial capacity for the Map storing this document.
  - BasicBSONObject
```
public BasicBSONObject(String key,
                       Object value)
```
    Creates a BSONObject initialised with a single key/value pair.
    
    Parameters:
    
    key - key under which to store
    
    value - value to store
  - BasicBSONObject
```
public BasicBSONObject(Map map)
```
    Creates a DBObject from a map.
    
    Parameters:
    
    map - map to convert
- Method Detail
  - toMap
```
public Map toMap()
```
    Converts a DBObject to a map.
    
    Specified by:
    
    toMap in interface BSONObject
    
    Returns:
    
    the DBObject
  - removeField
```
public Object removeField(String key)
```
    Deletes a field from this object.
    
    Specified by:
    
    removeField in interface BSONObject
    
    Parameters:
    
    key - the field name to remove
    
    Returns:
    
    the object removed
  - containsField
```
public boolean containsField(String field)
```
    Checks if this object contains a given field
    
    Specified by:
    
    containsField in interface BSONObject
    
    Parameters:
    
    field - field name
    
    Returns:
    
    if the field exists
  - containsKey
```
@Deprecated
public boolean containsKey(String key)
```
    Deprecated.
    
    Description copied from interface: BSONObject
    
    Deprecated
    
    Specified by:
    
    containsKey in interface BSONObject
    
    Parameters:
    
    key - the key to check
    
    Returns:
    
    True if the key is present
  - get
```
public Object get(String key)
```
    Gets a value from this object
    
    Specified by:
    
    get in interface BSONObject
    
    Parameters:
    
    key - field name
    
    Returns:
    
    the value
  - getInt
```
public int getInt(String key)
```
    Returns the value of a field as an int.
    
    Parameters:
    
    key - the field to look for
    
    Returns:
    
    the field value (or default)
  - getInt
```
public int getInt(String key,
                  int def)
```
    Returns the value of a field as an int.
    
    Parameters:
    
    key - the field to look for
    
    def - the default to return
    
    Returns:
    
    the field value (or default)
  - getLong
```
public long getLong(String key)
```
    Returns the value of a field as a long.
    
    Parameters:
    
    key - the field to return
    
    Returns:
    
    the field value
  - getLong
```
public long getLong(String key,
                    long def)
```
    Returns the value of a field as an long.
    
    Parameters:
    
    key - the field to look for
    
    def - the default to return
    
    Returns:
    
    the field value (or default)
  - getDouble
```
public double getDouble(String key)
```
    Returns the value of a field as a double.
    
    Parameters:
    
    key - the field to return
    
    Returns:
    
    the field value
  - getDouble
```
public double getDouble(String key,
                        double def)
```
    Returns the value of a field as an double.
    
    Parameters:
    
    key - the field to look for
    
    def - the default to return
    
    Returns:
    
    the field value (or default)
  - getString
```
public String getString(String key)
```
    Returns the value of a field as a string
    
    Parameters:
    
    key - the field to look up
    
    Returns:
    
    the value of the field, converted to a string
  - getString
```
public String getString(String key,
                        String def)
```
    Returns the value of a field as a string
    
    Parameters:
    
    key - the field to look up
    
    def - the default to return
    
    Returns:
    
    the value of the field, converted to a string
  - getBoolean
```
public boolean getBoolean(String key)
```
    Returns the value of a field as a boolean.
    
    Parameters:
    
    key - the field to look up
    
    Returns:
    
    the value of the field, or false if field does not exist
  - getBoolean
```
public boolean getBoolean(String key,
                          boolean def)
```
    Returns the value of a field as a boolean
    
    Parameters:
    
    key - the field to look up
    
    def - the default value in case the field is not found
    
    Returns:
    
    the value of the field, converted to a string
  - getObjectId
```
public ObjectId getObjectId(String field)
```
    Returns the object id or null if not set.
    
    Parameters:
    
    field - The field to return
    
    Returns:
    
    The field object value or null if not found (or if null :-^).
  - getObjectId
```
public ObjectId getObjectId(String field,
                            ObjectId def)
```
    Returns the object id or def if not set.
    
    Parameters:
    
    field - The field to return
    
    def - the default value in case the field is not found
    
    Returns:
    
    The field object value or def if not set.
  - getDate
```
public Date getDate(String field)
```
    Returns the date or null if not set.
    
    Parameters:
    
    field - The field to return
    
    Returns:
    
    The field object value or null if not found.
  - getDate
```
public Date getDate(String field,
                    Date def)
```
    Returns the date or def if not set.
    
    Parameters:
    
    field - The field to return
    
    def - the default value in case the field is not found
    
    Returns:
    
    The field object value or def if not set.
  - putAll
```
public void putAll(Map m)
```
    Description copied from interface: BSONObject
    
    Sets all key/value pairs from a map into this object
    
    Specified by:
    
    putAll in interface BSONObject
    
    Specified by:
    
    putAll in interface Map<String,Object>
    
    Overrides:
    
    putAll in class HashMap<String,Object>
    
    Parameters:
    
    m - the map
  - putAll
```
public void putAll(BSONObject o)
```
    Description copied from interface: BSONObject
    
    Sets all key/value pairs from an object into this object
    
    Specified by:
    
    putAll in interface BSONObject
    
    Parameters:
    
    o - the object
  - append
```
public BasicBSONObject append(String key,
                              Object val)
```
    Add a key/value pair to this object
    
    Parameters:
    
    key - the field name
    
    val - the field value
    
    Returns:
    
    this
  - equals
```
public boolean equals(Object o)
```
    Compares two documents according to their serialized form, ignoring the order of keys.
    
    Specified by:
    
    equals in interface Map<String,Object>
    
    Overrides:
    
    equals in class AbstractMap<String,Object>
    
    Parameters:
    
    o - the document to compare to, which must be an instance of BSONObject.
    
    Returns:
    
    true if the documents have the same serialized form, ignoring key order.
  - hashCode
```
public int hashCode()
```
    Specified by:
    
    hashCode in interface Map<String,Object>
    
    Overrides:
    
    hashCode in class AbstractMap<String,Object>

Class BasicBSONObject

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

Constructor Summary

Method Summary

Methods inherited from class java.util.AbstractMap

Methods inherited from interface org.bson.BSONObject

Methods inherited from class java.util.HashMap

Methods inherited from class java.util.LinkedHashMap

Methods inherited from interface java.util.Map

Methods inherited from class java.lang.Object

Constructor Detail

BasicBSONObject

BasicBSONObject

BasicBSONObject

BasicBSONObject

Method Detail

toMap

removeField

containsField

containsKey

get

getInt

getInt

getLong

getLong

getDouble

getDouble

getString

getString

getBoolean

getBoolean

getObjectId

getObjectId

getDate

getDate

putAll

putAll

append

equals

hashCode