org.drools.workbench.models.datamodel.util
Class PortablePreconditions

java.lang.Object
  org.drools.workbench.models.datamodel.util.PortablePreconditions

public class PortablePreconditions
extends Object

Helper class for parameters validation, such as not null arguments.

Constructor Summary

protected

PortablePreconditions() Should not be instantiated

Method Summary

static void	checkCondition(String name, boolean condition) Assert that this parameter is marked as valid by the condition passed as parameter.
static <T> void	checkEachParameterNotNull(String name, T... parameters) Assert that this parameter is not null, as also each item of the array is not null.
static void	checkNotEmpty(String name, Map<?,?> parameter) Assert that this parameter is not empty.
static String	checkNotEmpty(String name, String parameter) Assert that this parameter is not empty.
static <T extends Collection<?>> T	checkNotEmpty(String name, T parameter) Assert that this parameter is not empty.
static <T> T[]	checkNotEmpty(String name, T[] parameter) Assert that this parameter is not empty.
static <T> T	checkNotNull(String name, T parameter) Assert that this parameter is not null.
static void	checkNullMandatory(String name, Object parameter) Assert that this parameter is null.

Methods inherited from class java.lang.Object

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

Constructor Detail

PortablePreconditions

protected PortablePreconditions()

Should not be instantiated

Method Detail

checkCondition

public static void checkCondition(String name,
                                  boolean condition)

Assert that this parameter is marked as valid by the condition passed as parameter.

Parameters:

name - of parameter

condition - itself

checkEachParameterNotNull

public static <T> void checkEachParameterNotNull(String name,
                                                 T... parameters)

Assert that this parameter is not null, as also each item of the array is not null.

Type Parameters:

T - parameter type

Parameters:

name - of parameter

parameters - itself

checkNotEmpty

public static <T extends Collection<?>> T checkNotEmpty(String name,
                                                        T parameter)

Assert that this parameter is not empty. It will test for null and also the size of this array.

Parameters:

name - of parameter

parameter - itself

checkNotEmpty

public static void checkNotEmpty(String name,
                                 Map<?,?> parameter)

Assert that this parameter is not empty. It will test for null and also the size of this array.

Parameters:

name - of parameter

parameter - itself

checkNotEmpty

public static String checkNotEmpty(String name,
                                   String parameter)

Assert that this parameter is not empty. It trims the parameter to see if have any valid data on that.

Parameters:

name - of parameter

parameter - itself

checkNotEmpty

public static <T> T[] checkNotEmpty(String name,
                                    T[] parameter)

Assert that this parameter is not empty. It will test for null and also the size of this array.

Type Parameters:

T - type of the array

Parameters:

name - of parameter

parameter - itself

checkNotNull

public static <T> T checkNotNull(String name,
                                 T parameter)

Assert that this parameter is not null.

Parameters:

name - of parameter

parameter - itself

checkNullMandatory

public static void checkNullMandatory(String name,
                                      Object parameter)

Assert that this parameter is null.

Parameters:

name - of parameter

parameter - itself