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    • com.plaid.client.internal.gson.RequiredField Maven / Gradle / Ivy

    package com.plaid.client.internal.gson;

/**
 * Simple wrapper class for JSON fields that must always
 * be present in serialized output (that is, if not present,
 * null must always be emitted as its value).
 * 
    
 * Basically the same thing as Optional which is in Java 1.8,
 * but we reimplement our own to support lower java versions.
 *
 * @param  the type being wrapped
 */
public final class RequiredField {
  private final T value;

  private static final RequiredField EMPTY = new RequiredField<>(null);

  private RequiredField(T value) {
    this.value = value;
  }

  @SuppressWarnings("unchecked")
  public static  RequiredField empty() {
    return (RequiredField) EMPTY;
  }

  public static  RequiredField of(S value) {
    return new RequiredField(value);
  }

  public boolean isPresent() {
    return value != null;
  }

  public T get() {
    return value;
  }
}
    
    
    
    

    




    
    
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