creates a new database-aware IdentityHashMap.

[Visual Basic]
Function newIdentityHashMap( _ 
   ByVal initialSize As Integer _ 
) As Db4oMap
[C#]
Db4oMap newIdentityHashMap(
   int initialSize
);
[C++]
Db4oMap* newIdentityHashMap(
   int initialSize
);
[JScript]
function newIdentityHashMap(
   int initialSize
): Db4oMap;

Parameters

initialSize

the initial size of the HashMap

Return Value

com.db4o.types.Db4oMap

Remarks

creates a new database-aware IdentityHashMap.

Only first class objects already stored to the ObjectContainer (Objects with a db4o ID) can be used as keys for this type of Map. The internal db4o ID will be used as the hash value.

Usage:
- declare a

java.util.Map

variable in your persistent class.
- fill the variable with this method.

Example:

            class MyClass{
            Map myMap;
            }
            MyClass myObject = new MyClass();
            myObject.myMap = objectContainer.ext().collections().newIdentityMap(0);

See Also

Db4oCollections Interface | com.db4o.types Namespace | com.db4o.types.Db4oMap

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