net.imadz.meta.impl

Class MetaDataMap

java.lang.Object

net.imadz.meta.impl.MetaDataMap

All Implemented Interfaces:

Iterable<MetaDataFilterable>, Dumpable

public class MetaDataMap
extends Object
implements Iterable<MetaDataFilterable>, Dumpable

Collection of filterable meta-data (typically child elements), that supports the concept of lazy filtering.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	MetaDataMap.Value Filtered value

Field Summary

Fields

Modifier and Type	Field and Description
protected List<MetaDataFilterable>	entryListCache
protected MetaDataFilter	filter
protected MetaData	owner
protected Map<Object,List<Integer>>	valueKeyMap
protected List<MetaDataMap.Value>	valueList

Method Summary

Modifier and Type	Method and Description
void	dump(Dumper dumper) Dump out the contents using the given indentation.
MetaDataMap	filter(MetaData newOwner, MetaDataFilter filter, boolean lazyFilter)
<T> T	get(Class<T> type, Object key) Convenience method that returns an object cast to the specified type.
MetaDataFilterable	get(Object key) Return a keyed value from the map
<MD extends MetaDataFilterable> List<MD>	getEntries() All entries in map
Collection<MetaDataFilterable>	getValues(Object key)
boolean	hasKey(Object key) Does the key belong to a MetaData object in this map?
Iterator<MetaDataFilterable>	iterator()
int	size() Number of entries in the map
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

owner

protected final MetaData owner

filter

protected final MetaDataFilter filter

valueList

protected final List<MetaDataMap.Value> valueList

valueKeyMap

protected final Map<Object,List<Integer>> valueKeyMap

entryListCache

protected List<MetaDataFilterable> entryListCache

Method Detail

filter

public MetaDataMap filter(MetaData newOwner,
                          MetaDataFilter filter,
                          boolean lazyFilter)

getValues

public Collection<MetaDataFilterable> getValues(Object key)

get

public MetaDataFilterable get(Object key)

Return a keyed value from the map

Parameters:

key - Value's key

Returns:

Value, or null if not found

hasKey

public boolean hasKey(Object key)

Does the key belong to a MetaData object in this map?

get

public <T> T get(Class<T> type,
                 Object key)

Convenience method that returns an object cast to the specified type.

Parameters:

type - to cast to

key - value's key

Returns:

Value implementing the specified class/interface, or null if not found

size

public int size()

Number of entries in the map

Returns:

getEntries().size()

iterator

public Iterator<MetaDataFilterable> iterator()

Specified by:

iterator in interface Iterable<MetaDataFilterable>

Returns:

getEntries().iterator()

getEntries

public <MD extends MetaDataFilterable> List<MD> getEntries()

All entries in map

dump

public void dump(Dumper dumper)

Description copied from interface: Dumpable

Dump out the contents using the given indentation. Any subelements should be additionally indented. argument out

Specified by:

dump in interface Dumpable

toString

public String toString()

Overrides:

toString in class Object