Package com.streambase.sb

Class TupleMapView

java.lang.Object

java.util.AbstractMap<String,Object>

com.streambase.sb.TupleMapView

All Implemented Interfaces:

Map<String,Object>

class TupleMapView
extends AbstractMap<String,Object>

A view onto a Tuple which uses the Map interface. This version does not support any remove operations on the map since we cannot remove a field from a Tuple (it has a fixed schema). Put is allowed. This class is only meant to be instantiated by the method Tuple.toMapView().

Since:

7.0

See Also:

• Tuple.toMapView()

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K extends Object,V extends Object>, AbstractMap.SimpleImmutableEntry<K extends Object,V extends Object>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K extends Object,V extends Object>

Constructor Summary

Constructors

Constructor	Description
TupleMapView(Tuple tuple)	Constructor

Method Summary

Modifier and Type	Method	Description
void	clear()
boolean	containsKey(Object fieldKey)
boolean	containsValue(Object value)
Set<Map.Entry<String,Object>>	entrySet()	Returns a Set whose elements comprise all of the mappings that are to be found in this Tuple.
Object	get(Object fieldKey)
Set<String>	keySet()
Object	put(String fieldKey, Object fieldValue)
void	putAll(Map<? extends String,? extends Object> map)
Object	remove(Object fieldKey)
int	size()
Collection<Object>	values()

Methods inherited from class java.util.AbstractMap

clone, equals, hashCode, isEmpty, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Details

TupleMapView

TupleMapView(Tuple tuple)

Constructor

Parameters:

tuple - tuple

Method Details

containsKey

public boolean containsKey(Object fieldKey)

Specified by:

containsKey in interface Map<String,Object>

Overrides:

containsKey in class AbstractMap<String,Object>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<String,Object>

Overrides:

containsValue in class AbstractMap<String,Object>

entrySet

public Set<Map.Entry<String,Object>> entrySet()

Returns a Set whose elements comprise all of the mappings that are to be found in this Tuple. Information on each of the mappings is encapsulated in a separate Map.Entry instance. As the Set is backed by this Map, users should be aware that changes in one will be immediately visible in the other.

Specified by:

entrySet in interface Map<String,Object>

Specified by:

entrySet in class AbstractMap<String,Object>

Returns:

a Set of the mappings

Since:

7.0

keySet

public Set<String> keySet()

Specified by:

keySet in interface Map<String,Object>

Overrides:

keySet in class AbstractMap<String,Object>

values

public Collection<Object> values()

Specified by:

values in interface Map<String,Object>

Overrides:

values in class AbstractMap<String,Object>

get

public Object get(Object fieldKey)

Specified by:

get in interface Map<String,Object>

Overrides:

get in class AbstractMap<String,Object>

put

public Object put(String fieldKey,
 Object fieldValue)

Specified by:

put in interface Map<String,Object>

Overrides:

put in class AbstractMap<String,Object>

putAll

public void putAll(Map<? extends String,? extends Object> map)

Specified by:

putAll in interface Map<String,Object>

Overrides:

putAll in class AbstractMap<String,Object>

remove

public Object remove(Object fieldKey)

Specified by:

remove in interface Map<String,Object>

Overrides:

remove in class AbstractMap<String,Object>

size

public int size()

Specified by:

size in interface Map<String,Object>

Overrides:

size in class AbstractMap<String,Object>

clear

public void clear()

Specified by:

clear in interface Map<String,Object>

Overrides:

clear in class AbstractMap<String,Object>