Examples with Functions com.google.common.base.Functions used on opensource projects

Example 1 with Functions

use of com.google.common.base.Functions in project presto by prestodb.

the class TestFunctionRegistry method testDuplicateFunctions.

@Test(expectedExceptions = IllegalArgumentException.class, expectedExceptionsMessageRegExp = "\\QFunction already registered: custom_add(bigint,bigint):bigint\\E")
public void testDuplicateFunctions() {
    List<SqlFunction> functions = new FunctionListBuilder().scalars(CustomFunctions.class).getFunctions().stream().filter(input -> input.getSignature().getName().equals("custom_add")).collect(toImmutableList());
    TypeRegistry typeManager = new TypeRegistry();
    FunctionRegistry registry = new FunctionRegistry(typeManager, new BlockEncodingManager(typeManager), new FeaturesConfig());
    registry.addFunctions(functions);
    registry.addFunctions(functions);
}