com.neurosys.etl.common.transformers

Class AbstractReverseTupleToEntityTransformer.OverridableHashMap

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<Integer,Mapper>

com.neurosys.etl.common.transformers.AbstractReverseTupleToEntityTransformer.OverridableHashMap

All Implemented Interfaces:

Serializable, Cloneable, Map<Integer,Mapper>

Enclosing class:

AbstractReverseTupleToEntityTransformer<ENTITY,TUPLE>

public static class AbstractReverseTupleToEntityTransformer.OverridableHashMap
extends HashMap<Integer,Mapper>

A Map that can provide a Primary Map and an override where it maybe applicable based on the order of precedence mentioned in AbstractEntityToTupleTransformer.transform(Object)

See Also:

Serialized Form

Nested Class Summary

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

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

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

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
OverridableHashMap(Map primaryOrigMap, Map overrideMap)

Method Summary

Modifier and Type	Method and Description
Mapper	get(Object key)
Map<Integer,String>	getColumnNumberToFieldNameMap()
Map<String,Integer>	getFieldNameToColumnNumberMap()

Methods inherited from class java.util.HashMap

clear, clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, forEach, getOrDefault, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Detail

OverridableHashMap

public OverridableHashMap(Map primaryOrigMap,
                          Map overrideMap)

Method Detail

get

public Mapper get(Object key)

Specified by:

get in interface Map<Integer,Mapper>

Overrides:

get in class HashMap<Integer,Mapper>

Parameters:

key - as Object, which is expected to be an Integer as the keys will come from this (primary origin map of type AbstractTupleToEntityTransformer).
The key can be a String, from another call hence in the case this method should be able to act as its parent.
Note: However for overrides, if a Mapper is required from overrideMap then the key would need to be a filed-name; so internally from the override map we will have to derive the override-key (FieldName) from the key (Column number integer)

getColumnNumberToFieldNameMap

public Map<Integer,String> getColumnNumberToFieldNameMap()

getFieldNameToColumnNumberMap

public Map<String,Integer> getFieldNameToColumnNumberMap()