Package io.github.torand.fastersql.statement

Class Helpers

java.lang.Object

io.github.torand.fastersql.statement.Helpers

public final class Helpers
extends Object

Provides statement utility functions.

Method Summary

Modifier and Type	Method	Description
static String	paramMarkers(long count)	Generates a string with comma separated statement parameter markers.
static Object	unwrapOptional(Object obj)	Returns the wrapped object if specified object is an optional, else returns the object itself.
static <T> Collection<T>	unwrapSuppliers(Supplier<T>... suppliers)	Returns a collection of non-null values produces by the specified suppliers.

Methods inherited from class java.lang.Object

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

Method Details

paramMarkers

public static String paramMarkers(long count)

Generates a string with comma separated statement parameter markers.

Parameters:

count - the number of parameter markers.

Returns:

the generated parameter marker string.

unwrapOptional

public static Object unwrapOptional(Object obj)

Returns the wrapped object if specified object is an optional, else returns the object itself.

Parameters:

obj - the object.

Returns:

the unwrapped object.

unwrapSuppliers

@SafeVarargs
public static <T> Collection<T> unwrapSuppliers(Supplier<T>... suppliers)

Returns a collection of non-null values produces by the specified suppliers.

Type Parameters:

T - the supplier value type.

Parameters:

suppliers - the suppliers.

Returns:

the collection of supplied values.