The Java Supplier interface of the java.util.function package is a functional interface that is often used as an assignment target for lambda expressions. The get() method is the class’s only…
The Java Function interface of the java.util.function package is a functional interface that is often used as an assignment target for lambda expressions. The apply(T t) method is the class’s…
The Java Predicate interface of the java.util.function package is a functional interface that is often used as an assignment target for lambda expressions. The test(T t) method is the class’s…
The basic idea of predicate pushdown is that certain parts of SQL queries (the predicates) can be “pushed” to where the data lives. This optimization can drastically reduce query/processing time…
The Java Consumer interface of the java.util.function package is a functional interface that is often used as an assignment target for lambda expressions. accept(T t) is the interface’s single abstract…
Simply put, a Java functional interface is an interface with a single abstract method. Functional interfaces were released with Java 8 and provide target types for lambda expressions. The java.util.function…
In general a lambda expression is an anonymous function, which means for some combination of inputs, there is a specific output. In the context of Java, a lambda expression is…