com.haulmont.bali.util

Class StreamUtils.LazySupplier<T>

java.lang.Object

com.haulmont.bali.util.StreamUtils.LazySupplier<T>

Type Parameters:

T - type of supplied value

All Implemented Interfaces:

java.util.function.Supplier<T>

Enclosing class:

StreamUtils

@NotThreadSafe
public static class StreamUtils.LazySupplier<T>
extends java.lang.Object
implements java.util.function.Supplier<T>

Lazy evaluated value Supplier.

Example:

    LazySupplier<InputStream> supplier = LazySupplier.of(() -> {
        return new FileInputStream(file);
    });

    ...

    if (supplier.supplied()) {
        IOUtils.closeQuietly(inputStreamSupplier.get());
    }
 

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.function.Supplier<T>	supplier
protected T	value

Constructor Summary

Constructors

Constructor and Description
LazySupplier(java.util.function.Supplier<T> supplier)

Method Summary

Modifier and Type	Method and Description
T	get()
static <T> StreamUtils.LazySupplier<T>	of(java.util.function.Supplier<T> supplier)
boolean	supplied()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

value

protected T value

supplier

protected final java.util.function.Supplier<T> supplier

Constructor Detail

LazySupplier

public LazySupplier(java.util.function.Supplier<T> supplier)

Method Detail

of

public static <T> StreamUtils.LazySupplier<T> of(java.util.function.Supplier<T> supplier)

get

public T get()

Specified by:

get in interface java.util.function.Supplier<T>

supplied

public boolean supplied()

Returns:

true if value is supplied by get() invocation