ScalarHash (Sleep 2.1 API)

All Superinterfaces:

java.io.Serializable

All Known Implementing Classes:

HashContainer, OrderedHashContainer
```
public interface ScalarHash
extends java.io.Serializable
```
This interface lets you create your own scalar hash implementation.

To create a new type of scalar hash: create a class that implements the sleep.runtime.ScalarHash interface. The scalar hash interface asks for methods that define all of the common operations on sleep hashes.

To instantiate a custom scalar hash:
Scalar temp = SleepUtils.getHashScalar(new MyHashScalar());
In the above example MyHashScalar is the class name of your new scalar hash implementation.

Keep in mind when implementing the interface below that you are defining the interface to a dictionary style data structure.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Scalar`	`getAt(Scalar key)`	Retrieves a scalar from the hashtable.
`java.util.Map`	`getData()`	Return the data structure backing this hash please
`ScalarArray`	`keys()`	Returns all of the keys within the scalar hash.
`void`	`remove(Scalar key)`	Removes the specified scalar from the hashmap.

- Method Detail
  - getAt
```
Scalar getAt(Scalar key)
```
    Retrieves a scalar from the hashtable. If a scalar key does not exist then the key should be created with a value of $null. This $null or empty scalar value should be returned by the function. This is how values are added to Scalar hashes.
  - keys
```
ScalarArray keys()
```
    Returns all of the keys within the scalar hash. If a key has a $null (aka empty scalar) value the key should be removed from the scalar hash.
  - remove
```
void remove(Scalar key)
```
    Removes the specified scalar from the hashmap. :)
  - getData
```
java.util.Map getData()
```
    Return the data structure backing this hash please