| /* |
| * Copyright 2008 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.dev.cfg; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Represents a module property which does not impact deferred-binding |
| * decisions. |
| */ |
| public class ConfigurationProperty extends Property { |
| private final boolean allowMultipleValues; |
| private List<String> values = new ArrayList<String>(); |
| |
| public ConfigurationProperty(String name) { |
| this(name, false); |
| } |
| |
| public ConfigurationProperty(String name, boolean allowMultipleValues) { |
| super(name); |
| this.allowMultipleValues = allowMultipleValues; |
| if (!allowMultipleValues) { |
| values.add(null); // single-valued properties default to null |
| } |
| } |
| |
| public void addValue(String value) { |
| if (!allowMultipleValues) { |
| throw new IllegalStateException( |
| "Attempt to add a value to a single-valued ConfigurationProperty"); |
| } |
| values.add(value); |
| } |
| |
| public boolean allowsMultipleValues() { |
| return allowMultipleValues; |
| } |
| |
| public void clear() { |
| values.clear(); |
| } |
| |
| public String getValue() { |
| if (values.size() != 1) { |
| throw new IllegalStateException("size != 1"); |
| } |
| return values.get(0); |
| } |
| |
| public List<String> getValues() { |
| ArrayList<String> v = new ArrayList<String>(values.size()); |
| v.addAll(values); |
| return v; |
| } |
| |
| public boolean isMultiValued() { |
| return values.size() > 1; |
| } |
| |
| public void setValue(String value) { |
| if (values.size() == 0) { |
| values.add(value); |
| } else { |
| values.set(0, value); |
| } |
| } |
| |
| public void setValues(List<String> values) { |
| if (!allowMultipleValues && values.size() > 1) { |
| throw new IllegalStateException( |
| "Attempt to set > 1 value for a single-valued ConfigurationProperty"); |
| } |
| this.values.clear(); |
| this.values.addAll(values); |
| } |
| } |