ANTLR 3.5.3 · org.antlr.runtime.misc.DoubleKeyMap

public Class DoubleKeyMap<Key1, Key2, Value>

extends Object

Class Inheritance

java.lang.Object
org.antlr.runtime.misc.DoubleKeyMap

Imports

java.util.*

Sometimes we need to map a key to a value but key is two pieces of data. This nested hash table saves creating a single key each time we access map; avoids mem creation.

Field Summary

Modifier and Type	Field and Description
pack-priv Map<Key1, Map<Key2, Value>>	data

Constructor Summary

Access	Constructor and Description
public	DoubleKeyMap()

Method Summary

Modifier and Type	Method and Description
public Value	get(Key1 k1, Key2 k2)
public Map<Key2, Value>	get(Key1 k1)
public Set<Key1>	keySet() get all primary keys
public Set<Key2>	keySet(Key1 k1) get all secondary keys associated with a primary key
public Value	put(Key1 k1, Key2 k2, Value v)
public Collection<Value>	values(Key1 k1) Get all values associated with primary key
public Collection<Value>	values()

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

data	back to summary
pack-priv Map<Key1, Map<Key2, Value>> data

Constructor Detail

DoubleKeyMap	back to summary
public DoubleKeyMap()

Method Detail

get	back to summary
public Value get(Key1 k1, Key2 k2)

get	back to summary
public Map<Key2, Value> get(Key1 k1)

keySet	back to summary
public Set<Key1> keySet() get all primary keys

keySet	back to summary
public Set<Key2> keySet(Key1 k1) get all secondary keys associated with a primary key

put	back to summary
public Value put(Key1 k1, Key2 k2, Value v)

values	back to summary
public Collection<Value> values(Key1 k1) Get all values associated with primary key

values	back to summary
public Collection<Value> values()