2 * Copyright 2008 the original author or authors.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 package org.wamblee.system.adapters;
18 import java.util.ArrayList;
19 import java.util.List;
21 import org.wamblee.system.core.DefaultRequiredInterface;
22 import org.wamblee.system.core.RequiredInterface;
23 import org.wamblee.system.core.Scope;
25 public class ParameterValues {
26 private Class[] _types;
27 private ValueProvider[] _values;
30 * Constructs the configuration. By default no constructor is selected and
31 * one of {@link #select(Class...)} or
32 * {@link #greedy()} must be called.
33 * @param aClass Class to construct.
35 public ParameterValues(Class[] aTypes) {
40 public Class[] getTypes() {
45 * Sets argument i to be optional, meaning that null is allowed to be passed in.
46 * @param aArg Argument to set.
48 public ParameterValues setOptional(int aArg) {
49 _values[aArg] = new RequiredInterfaceProvider(new DefaultRequiredInterface(
50 "arg" + aArg, _types[aArg], true));
55 * Sets the argument i to a fixed value.
56 * @param aArg Argument to set.
57 * @param aValue Value.
59 public ParameterValues setValue(int aArg, Object aValue) {
60 _values[aArg] = new FixedValueProvider(aValue);
67 private void resetValues() {
68 _values = new ValueProvider[_types.length];
69 for (int i = 0; i < _values.length; i++) {
70 _values[i] = new RequiredInterfaceProvider(new DefaultRequiredInterface(
71 "arg" + i, _types[i]));
75 public List<RequiredInterface> getRequiredInterfaces() {
76 List<RequiredInterface> result = new ArrayList<RequiredInterface>();
77 for (ValueProvider provider: _values) {
78 if ( provider instanceof RequiredInterfaceProvider) {
79 result.add( ((RequiredInterfaceProvider)provider).getRequiredInterface());
85 public Object[] values(Scope aScope) {
86 Object[] values = new Object[_values.length];
87 for (int i = 0; i < _values.length; i++) {
88 values[i] = _values[i].getValue(aScope);