Package convex.core.data

Class Maps

java.lang.Object

convex.core.data.Maps

public class Maps
extends Object

Utility class for map functions

Field Summary

Fields

Modifier and Type	Field	Description
static final Ref<AMap<?,?>>	EMPTY_REF
static int	MAX_ENCODING_SIZE

Constructor Summary

Constructors

Constructor	Description
Maps()

Method Summary

Modifier and Type	Method	Description
static <K extends ACell, V extends ACell, R extends AMap<K, V>> R	coerce(AMap<?,?> m)
static <R extends AHashMap<K, V>, K extends ACell, V extends ACell> R	create(ACell[] keysAndValues)	Constructs a map with the given keys and values.
static <K extends ACell, V extends ACell> AHashMap<K,V>	create(List<MapEntry<K,V>> entries)	Create a map with a collection of entries.
static <K extends ACell, V extends ACell> MapLeaf<K,V>	create(K k, V v)
static <K extends ACell, V extends ACell> AHashMap<K,V>	createWithShift(int shift, List<MapEntry<K,V>> entries)	Create a hashmap with the correct shift and given entries.
static <K extends ACell, V extends ACell, R extends AHashMap<K, V>> R	empty()
static <K extends ACell, V extends ACell, R extends AMap<K, V>> Ref<R>	emptyRef()
static <K, V> HashMap<K,V>	hashMapOf(Object... keysAndValues)
static <R extends AHashMap<K, V>, K extends ACell, V extends ACell> R	of(Object... keysAndValues)	Constructs a map with the given keys and values.
static <K extends ACell, V extends ACell> AHashMap<K,V>	read(Blob b, int pos)	Read a Hashmap from a Blob.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

EMPTY_REF

public static final Ref<AMap<?,?>> EMPTY_REF

MAX_ENCODING_SIZE

public static int MAX_ENCODING_SIZE

Constructor Details

Maps

public Maps()

Method Details

empty

public static <K extends ACell,
V extends ACell,
R extends AHashMap<K,
V>>
R empty()

emptyRef

public static <K extends ACell,
V extends ACell,
R extends AMap<K,
V>>
Ref<R> emptyRef()

create

public static <K extends ACell,
V extends ACell>
MapLeaf<K,V> create(K k,
 V v)

of

public static <R extends AHashMap<K,
V>,
K extends ACell,
V extends ACell>
R of(Object... keysAndValues)

Constructs a map with the given keys and values. If keys are repeated, later keys will overwrite earlier ones. Performs conversion to CVM types.

Type Parameters:

R - Map type

K - Key type

V - Value type

Parameters:

keysAndValues - Keys and values to include

Returns:

Map with given keys and values

create

public static <R extends AHashMap<K,
V>,
K extends ACell,
V extends ACell>
R create(ACell[] keysAndValues)

Constructs a map with the given keys and values. If keys are repeated, later keys will overwrite earlier ones. Performs conversion to CVM types.

Type Parameters:

R - Map type

K - Key type

V - Value type

Parameters:

keysAndValues - Keys and values to include

Returns:

Map with given keys and values

hashMapOf

public static <K,
V> HashMap<K,V> hashMapOf(Object... keysAndValues)

create

public static <K extends ACell,
V extends ACell>
AHashMap<K,V> create(List<MapEntry<K,V>> entries)

Create a map with a collection of entries.

Type Parameters:

K - Key type

V - Value type

Parameters:

entries - Entries to include

Returns:

AHashMap instance

createWithShift

public static <K extends ACell,
V extends ACell>
AHashMap<K,V> createWithShift(int shift,
 List<MapEntry<K,V>> entries)

Create a hashmap with the correct shift and given entries.

Type Parameters:

K - Key type

V - Value type

Parameters:

shift - Shift level of map

entries - Entries to include

Returns:

AHashMap instance

coerce

public static <K extends ACell,
V extends ACell,
R extends AMap<K,
V>>
R coerce(AMap<?,?> m)

read

public static <K extends ACell,
V extends ACell>
AHashMap<K,V> read(Blob b,
 int pos)
            throws BadFormatException

Read a Hashmap from a Blob. Assumes tag byte already read and at position specified

Type Parameters:

K - Key type

V - Value type

Parameters:

b - ByteBuffer to read from

pos - Position to read from Blob (tag location)

Returns:

Map instance

Throws:

BadFormatException - If encoding is invalid