org.h2.mode.FunctionsMSSQLServer Maven / Gradle / Ivy
/*
* Copyright 2004-2019 H2 Group. Multiple-Licensed under the MPL 2.0,
* and the EPL 1.0 (https://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.mode;
import java.util.HashMap;
import org.h2.engine.Database;
import org.h2.expression.function.Function;
import org.h2.expression.function.FunctionInfo;
/**
* Functions for {@link org.h2.engine.Mode.ModeEnum#MSSQLServer} compatibility
* mode.
*/
public final class FunctionsMSSQLServer extends FunctionsBase {
private static final HashMap FUNCTIONS = new HashMap<>();
static {
copyFunction(FUNCTIONS, "LOCATE", "CHARINDEX");
copyFunction(FUNCTIONS, "LOCALTIMESTAMP", "GETDATE");
copyFunction(FUNCTIONS, "LENGTH", "LEN");
copyFunction(FUNCTIONS, "RANDOM_UUID", "NEWID");
}
/**
* Returns mode-specific function for a given name, or {@code null}.
*
* @param database
* the database
* @param upperName
* the upper-case name of a function
* @return the function with specified name or {@code null}
*/
public static Function getFunction(Database database, String upperName) {
FunctionInfo info = FUNCTIONS.get(upperName);
return info != null ? new Function(database, info) : null;
}
private FunctionsMSSQLServer(Database database, FunctionInfo info) {
super(database, info);
}
}