Package org.osgi.util.function

Interface Supplier<T>

Type Parameters:
T - The type of the function output.
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@ConsumerType @FunctionalInterface public interface Supplier<T>
A function that produces a result.

This is a functional interface and can be used as the assignment target for a lambda expression or method reference.

"ThreadSafe"

  • Method Summary

    Modifier and Type
    Method
    Description
    static <T> Supplier<T>
    asJavaSupplier(Supplier<T> wrapped)
    Returns a java.util.function.Supplier which wraps the specified Supplier and throws any thrown exceptions.
    static <T> Supplier<T>
    asJavaSupplierOrElse(Supplier<T> wrapped, T orElse)
    Returns a java.util.function.Supplier which wraps the specified Supplier and the specified value.
    static <T> Supplier<T>
    asJavaSupplierOrElseGet(Supplier<T> wrapped, Supplier<? extends T> orElseGet)
    Returns a java.util.function.Supplier which wraps the specified Supplier and the specified java.util.function.Supplier.
    static <T> Supplier<T>
    asSupplier(Supplier<T> wrapped)
    Returns a Supplier which wraps the specified java.util.function.Supplier.
    T
    get()
    Returns a value.

  • Method Details

    • get

      T get() throws Exception
      Returns a value.
      Returns:
      The output of this function.
      Throws:
      Exception - An exception thrown by the method.

    • asJavaSupplier

      static <T> Supplier<T> asJavaSupplier(Supplier<T> wrapped)
      Returns a java.util.function.Supplier which wraps the specified Supplier and throws any thrown exceptions.

      The returned java.util.function.Supplier will throw any exception thrown by the wrapped Supplier.

      Type Parameters:
      T - The type of the function output.
      Parameters:
      wrapped - The Supplier to wrap. Must not be null.
      Returns:
      A java.util.function.Supplier which wraps the specified Supplier.

    • asJavaSupplierOrElse

      static <T> Supplier<T> asJavaSupplierOrElse(Supplier<T> wrapped, T orElse)
      Returns a java.util.function.Supplier which wraps the specified Supplier and the specified value.

      If the the specified Supplier throws an Exception, the the specified value is returned.

      Type Parameters:
      T - The type of the function output.
      Parameters:
      wrapped - The Supplier to wrap. Must not be null.
      orElse - The value to return if the specified Supplier throws an Exception.
      Returns:
      A java.util.function.Supplier which wraps the specified Supplier and the specified value.

    • asJavaSupplierOrElseGet

      static <T> Supplier<T> asJavaSupplierOrElseGet(Supplier<T> wrapped, Supplier<? extends T> orElseGet)
      Returns a java.util.function.Supplier which wraps the specified Supplier and the specified java.util.function.Supplier.

      If the the specified Supplier throws an Exception, the value returned by the specified java.util.function.Supplier is returned.

      Type Parameters:
      T - The type of the function output.
      Parameters:
      wrapped - The Supplier to wrap. Must not be null.
      orElseGet - The java.util.function.Supplier to call for a return value if the specified Supplier throws an Exception.
      Returns:
      A java.util.function.Supplier which wraps the specified Supplier and the specified java.util.function.Supplier.

    • asSupplier

      static <T> Supplier<T> asSupplier(Supplier<T> wrapped)
      Returns a Supplier which wraps the specified java.util.function.Supplier.
      Type Parameters:
      T - The type of the function output.
      Parameters:
      wrapped - The java.util.function.Supplier to wrap. Must not be null.
      Returns:
      A Supplier which wraps the specified java.util.Supplier.Function.