Class JsonNullable<T>
- java.lang.Object
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- org.openapitools.jackson.nullable.JsonNullable<T>
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- All Implemented Interfaces:
java.io.Serializable
public class JsonNullable<T> extends java.lang.Object implements java.io.Serializable- See Also:
- Serialized Form
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description booleanequals(java.lang.Object obj)JsonNullable<T>filter(java.util.function.Predicate<T> predicate)If a value is present, and the value matches the given predicate, returns a JsonNullable describing the value, otherwise returns an undefined JsonNullable.<U> JsonNullable<U>flatMap(java.util.function.Function<? super T,? extends JsonNullable<? extends U>> mapper)If a value is present, returns the result of applying the given JsonNullable-bearing mapping function to the value, otherwise returns an undefined JsonNullable.Tget()Obtain the value of thisJsonNullable.inthashCode()voidifPresent(java.util.function.Consumer<? super T> action)If a value is present, performs the given action with the value, otherwise does nothing.voidifPresentOrElse(java.util.function.Consumer<? super T> action, java.lang.Runnable undefinedAction)If a value is present, performs the given action with the value, otherwise performs the given empty-based action.booleanisPresent()If a value is present, returns true, otherwise false.booleanisUndefined()If a value is not present, returns true, otherwise false.<U> JsonNullable<U>map(java.util.function.Function<T,U> mapper)If a value is present, returns a JsonNullable describing the result of applying the given mapping function to the value, otherwise returns an undefined JsonNullable.static <T> JsonNullable<T>of(T value)Create aJsonNullablefrom the submitted value.JsonNullable<T>or(java.util.function.Supplier<? extends JsonNullable<? extends T>> supplier)If a value is present, returns a JsonNullable describing the value, otherwise returns a JsonNullable produced by the supplying function.TorElse(T other)Obtain the value of thisJsonNullable.TorElseGet(java.util.function.Supplier<? extends T> supplier)If a value is present, returns the value, otherwise returns the result produced by the supplying function.TorElseThrow()If a value is present, returns the value, otherwise throws NoSuchElementException.<X extends java.lang.Throwable>
TorElseThrow(java.util.function.Supplier<? extends X> supplier)If a value is present, returns the value, otherwise throws an exception produced by the exception supplying function.java.util.stream.Stream<T>stream()If a value is present, returns a sequential Stream containing only that value, otherwise returns an empty Stream.java.lang.StringtoString()static <T> JsonNullable<T>undefined()Create aJsonNullablerepresenting an undefined value (not present).
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Method Detail
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undefined
public static <T> JsonNullable<T> undefined()
Create aJsonNullablerepresenting an undefined value (not present).- Type Parameters:
T- a type wildcard- Returns:
- an empty
JsonNullablewith no value defined
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of
public static <T> JsonNullable<T> of(T value)
Create aJsonNullablefrom the submitted value.- Type Parameters:
T- the type of the value- Parameters:
value- the value- Returns:
- the
JsonNullablewith the submitted value present.
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get
public T get()
Obtain the value of thisJsonNullable.- Returns:
- the value, if present
- Throws:
java.util.NoSuchElementException- if no value is present
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orElse
public T orElse(T other)
Obtain the value of thisJsonNullable.- Parameters:
other- the value to be returned if no value is present- Returns:
- the value of this
JsonNullableif present, the submitted value otherwise
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orElseGet
public T orElseGet(java.util.function.Supplier<? extends T> supplier)
If a value is present, returns the value, otherwise returns the result produced by the supplying function.- Parameters:
supplier- the supplying function that produces a value to be returned- Returns:
- the value, if present, otherwise the result produced by the supplying function
- Throws:
java.lang.NullPointerException- if no value is present and the supplying function is null- Since:
- 0.2.8
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orElseThrow
public T orElseThrow()
If a value is present, returns the value, otherwise throws NoSuchElementException.- Returns:
- the value of this JsonNullable
- Throws:
java.util.NoSuchElementException- if no value if present- Since:
- 0.2.8
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orElseThrow
public <X extends java.lang.Throwable> T orElseThrow(java.util.function.Supplier<? extends X> supplier) throws X extends java.lang.Throwable
If a value is present, returns the value, otherwise throws an exception produced by the exception supplying function.- Type Parameters:
X- type of the exception to be thrown- Parameters:
supplier- the supplying function that produces an exception to be thrown- Returns:
- the value, if present
- Throws:
X- if no value is presentjava.lang.NullPointerException- if no value is present and the exception supplying function isnullX extends java.lang.Throwable- Since:
- 0.2.8
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isPresent
public boolean isPresent()
If a value is present, returns true, otherwise false.- Returns:
- true if a value is present, otherwise false
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isUndefined
public boolean isUndefined()
If a value is not present, returns true, otherwise false.- Returns:
- true if a value is not present, otherwise false
- Since:
- 0.2.8
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ifPresent
public void ifPresent(java.util.function.Consumer<? super T> action)
If a value is present, performs the given action with the value, otherwise does nothing.- Parameters:
action- the action to be performed, if a value is present- Throws:
java.lang.NullPointerException- if a value is present and the given action is null
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ifPresentOrElse
public void ifPresentOrElse(java.util.function.Consumer<? super T> action, java.lang.Runnable undefinedAction)
If a value is present, performs the given action with the value, otherwise performs the given empty-based action.- Parameters:
action- the action to be performed, if a value is presentundefinedAction- the empty-based action to be performed, if no value is present- Throws:
java.lang.NullPointerException- if a value is present and the given action is null, or no value is present and the given empty-based action is null- Since:
- 0.2.8
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filter
public JsonNullable<T> filter(java.util.function.Predicate<T> predicate)
If a value is present, and the value matches the given predicate, returns a JsonNullable describing the value, otherwise returns an undefined JsonNullable.- Parameters:
predicate- the predicate to apply to a value, if present- Returns:
- a JsonNullable describing the value of this JsonNullable, if a value is present and the value matches the given predicate, otherwise an undefined JsonNullable
- Throws:
java.lang.NullPointerException- if the predicate is null- Since:
- 0.2.8
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map
public <U> JsonNullable<U> map(java.util.function.Function<T,U> mapper)
If a value is present, returns a JsonNullable describing the result of applying the given mapping function to the value, otherwise returns an undefined JsonNullable.- Type Parameters:
U- the type of the value returned from the mapping function- Parameters:
mapper- the mapping function to apply to a value, if present- Returns:
- a JsonNullable describing the result of applying a mapping function to the value of this JsonNullable, if a value is present, otherwise an undefined JsonNullable
- Throws:
java.lang.NullPointerException- if the mapping function is null- Since:
- 0.2.8
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flatMap
public <U> JsonNullable<U> flatMap(java.util.function.Function<? super T,? extends JsonNullable<? extends U>> mapper)
If a value is present, returns the result of applying the given JsonNullable-bearing mapping function to the value, otherwise returns an undefined JsonNullable.- Type Parameters:
U- the type of value of the JsonNullable returned by the mapping function- Parameters:
mapper- the mapping function to apply to a value, if present- Returns:
- the result of applying a JsonNullable-bearing mapping function to the value of this JsonNullable, if a value is present, otherwise an undefined JsonNullable
- Throws:
java.lang.NullPointerException- if the mapping function is null or returns a null result- Since:
- 0.2.8
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or
public JsonNullable<T> or(java.util.function.Supplier<? extends JsonNullable<? extends T>> supplier)
If a value is present, returns a JsonNullable describing the value, otherwise returns a JsonNullable produced by the supplying function.- Parameters:
supplier- the supplying function that produces a JsonNullable to be returned- Returns:
- returns a JsonNullable describing the value of this JsonNullable, if a value is present, otherwise a JsonNullable produced by the supplying function.
- Throws:
java.lang.NullPointerException- if the supplying function is null or produces a null result- Since:
- 0.2.8
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stream
public java.util.stream.Stream<T> stream()
If a value is present, returns a sequential Stream containing only that value, otherwise returns an empty Stream.- Returns:
- the JsonNullable value as a Stream
- Since:
- 0.2.8
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equals
public boolean equals(java.lang.Object obj)
- Overrides:
equalsin classjava.lang.Object
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hashCode
public int hashCode()
- Overrides:
hashCodein classjava.lang.Object
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toString
public java.lang.String toString()
- Overrides:
toStringin classjava.lang.Object
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