fact.io.hdureader

Class OptionalTypesMap<K,V>

java.lang.Object

com.google.common.collect.ForwardingObject

com.google.common.collect.ForwardingMap<K,V>

fact.io.hdureader.OptionalTypesMap<K,V>

All Implemented Interfaces:

Map<K,V>

public class OptionalTypesMap<K,V>
extends com.google.common.collect.ForwardingMap<K,V>

A map which can returns values of the appropriate type or an empty optional. Some of its accessor methods can be useful for situations where one needs values of specific type and does not want to do the whole casting plus error checking business.

This simply delegates all other calls to a HashMap instance.

Created by mackaiver on 10/11/16.

Nested Class Summary

Nested classes/interfaces inherited from class com.google.common.collect.ForwardingMap

com.google.common.collect.ForwardingMap.StandardEntrySet, com.google.common.collect.ForwardingMap.StandardKeySet, com.google.common.collect.ForwardingMap.StandardValues

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

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
OptionalTypesMap()

Method Summary

Modifier and Type	Method and Description
protected Map<K,V>	delegate()
Optional<Boolean>	getBoolean(K key) Get the value for the given key as boolean if it exists and the value can be cast to boolean.
Optional<boolean[]>	getBooleanArray(K key) Get the value for the given key as boolean array if it exists and the value can be cast to boolean[].
Optional<Double>	getDouble(K key) Get the value for the given key if it exists and the value can be cast to Double.
Optional<double[]>	getDoubleArray(K key) Get the value for the given key if it exists and the value can be cast to double[].
Optional<Float>	getFloat(K key) Get the value for the given key if it exists and the value can be cast to Float.
Optional<float[]>	getFloatArray(K key) Get the value for the given key if it exists and the value can be cast to float[].
Optional<Integer>	getInt(K key) Get the value for the given key if it exists and the value can be cast to Integer.
Optional<int[]>	getIntArray(K key) Get the value for the given key if it exists and the value can be cast to int[].
Optional<Long>	getLong(K key) Get the value for the given key as long if it exists and the value can be cast to Long.
Optional<long[]>	getLongArray(K key) Get the value for the given key as long array if it exists and the value can be cast to long[].
Optional<Short>	getShort(K key) Get the value for the given key if it exists and the value can be cast to Short.
Optional<short[]>	getShortArray(K key) Get the value for the given key if it exists and the value can be cast to short[].
Optional<String>	getString(K key)

Methods inherited from class com.google.common.collect.ForwardingMap

clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, put, putAll, remove, size, standardClear, standardContainsKey, standardContainsValue, standardEquals, standardHashCode, standardIsEmpty, standardPutAll, standardRemove, standardToString, values

Methods inherited from class com.google.common.collect.ForwardingObject

toString

Methods inherited from class java.lang.Object

clone, 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 Detail

OptionalTypesMap

public OptionalTypesMap()

Method Detail

getString

public Optional<String> getString(K key)

getShort

public Optional<Short> getShort(K key)

Get the value for the given key if it exists and the value can be cast to Short.

Returns:

an optional holding the value for the key

getShortArray

public Optional<short[]> getShortArray(K key)

Get the value for the given key if it exists and the value can be cast to short[].

Returns:

an optional holding the value for the key

getInt

public Optional<Integer> getInt(K key)

Get the value for the given key if it exists and the value can be cast to Integer.

Returns:

an optional holding the value for the key

getIntArray

public Optional<int[]> getIntArray(K key)

Get the value for the given key if it exists and the value can be cast to int[].

Returns:

an optional holding the value for the key

getDouble

public Optional<Double> getDouble(K key)

Get the value for the given key if it exists and the value can be cast to Double.

Returns:

an optional holding the value for the key

getDoubleArray

public Optional<double[]> getDoubleArray(K key)

Get the value for the given key if it exists and the value can be cast to double[].

Returns:

an optional holding the value for the key

getFloat

public Optional<Float> getFloat(K key)

Get the value for the given key if it exists and the value can be cast to Float.

Returns:

an optional holding the value for the key

getFloatArray

public Optional<float[]> getFloatArray(K key)

Get the value for the given key if it exists and the value can be cast to float[].

Returns:

an optional holding the value for the key

getLong

public Optional<Long> getLong(K key)

Get the value for the given key as long if it exists and the value can be cast to Long.

Returns:

an optional holding the value for the key

getLongArray

public Optional<long[]> getLongArray(K key)

Get the value for the given key as long array if it exists and the value can be cast to long[].

Returns:

an optional holding the value for the key

getBoolean

public Optional<Boolean> getBoolean(K key)

Get the value for the given key as boolean if it exists and the value can be cast to boolean.

Returns:

an optional holding the value for the key

getBooleanArray

public Optional<boolean[]> getBooleanArray(K key)

Get the value for the given key as boolean array if it exists and the value can be cast to boolean[].

Returns:

an optional holding the value for the key

delegate

protected Map<K,V> delegate()

Overrides:

delegate in class com.google.common.collect.ForwardingMap<K,V>