| author | Jaroslav Tulach <jtulach@netbeans.org> |
| Sat, 14 Jun 2008 09:58:08 +0200 | |
| changeset 153 | b5cbb797ec0a |
| parent 132 | 3bc4c54f4bcc |
| child 154 | 0fd5e9c500b9 |
| permissions | -rw-r--r-- |
| jtulach@101 | 1 |
package org.apidesign.misuse.projectconfig; |
| jtulach@101 | 2 |
|
| jtulach@101 | 3 |
public class ProjectConfigurationCorrect {
|
| jtulach@101 | 4 |
// BEGIN: misuse.prjconfig.correct |
| jtulach@153 | 5 |
interface ProjectConfigurationProvider<Configuration extends ProjectConfiguration> {
|
| jtulach@101 | 6 |
Configuration[] getConfigurations(); |
| jtulach@101 | 7 |
Configuration getActive(); |
| jtulach@101 | 8 |
void setActive(Configuration c); |
| jtulach@101 | 9 |
} |
| jtulach@101 | 10 |
interface ProjectConfiguration {
|
| jtulach@101 | 11 |
public String getDisplayName(); |
| jtulach@101 | 12 |
} |
| jtulach@101 | 13 |
// END: misuse.prjconfig.correct |
| jtulach@101 | 14 |
|
| jtulach@101 | 15 |
|
| jtulach@101 | 16 |
|
| jtulach@101 | 17 |
/* Following does not work: |
| jtulach@101 | 18 |
static {
|
| jtulach@101 | 19 |
// BEGIN: misuse.prjconfig.correct.trivial.access |
| jtulach@153 | 20 |
ProjectConfigurationProvider<?> provider = null; // obtain from somewhere; |
| jtulach@101 | 21 |
provider.setActive(provider.getConfigurations()[0]); |
| jtulach@101 | 22 |
// END: misuse.prjconfig.correct.trivial.access |
| jtulach@101 | 23 |
} |
| jtulach@101 | 24 |
*/ |
| jtulach@101 | 25 |
|
| jtulach@101 | 26 |
static {
|
| jtulach@101 | 27 |
// BEGIN: misuse.prjconfig.correct.access |
| jtulach@153 | 28 |
ProjectConfigurationProvider<?> provider = null; // obtain from somewhere; |
| jtulach@101 | 29 |
resetToZero(provider); |
| jtulach@101 | 30 |
// END: misuse.prjconfig.correct.access |
| jtulach@101 | 31 |
} |
| jtulach@101 | 32 |
|
| jtulach@101 | 33 |
// BEGIN: misuse.prjconfig.correct.openmethod |
| jtulach@101 | 34 |
private static <C extends ProjectConfiguration> void resetToZero( |
| jtulach@101 | 35 |
ProjectConfigurationProvider<C> provider |
| jtulach@101 | 36 |
) {
|
| jtulach@101 | 37 |
provider.setActive(provider.getConfigurations()[0]); |
| jtulach@101 | 38 |
} |
| jtulach@101 | 39 |
// END: misuse.prjconfig.correct.openmethod |
| jtulach@101 | 40 |
|
| jtulach@101 | 41 |
// BEGIN: misuse.prjconfig.correct.openclass |
| jtulach@153 | 42 |
static void workWithProjectConfigurationProvider(ProjectConfigurationProvider<?> p) {
|
| jtulach@101 | 43 |
ResetToZero<?> rtz = ResetToZero.create(p); |
| jtulach@101 | 44 |
rtz.obtainFirst(); |
| jtulach@101 | 45 |
// after a while |
| jtulach@101 | 46 |
rtz.apply(); |
| jtulach@101 | 47 |
} |
| jtulach@101 | 48 |
|
| jtulach@101 | 49 |
static class ResetToZero<C extends ProjectConfiguration> {
|
| jtulach@101 | 50 |
C active; |
| jtulach@101 | 51 |
final ProjectConfigurationProvider<C> provider; |
| jtulach@101 | 52 |
|
| jtulach@101 | 53 |
ResetToZero(ProjectConfigurationProvider<C> provider) {
|
| jtulach@101 | 54 |
this.provider = provider; |
| jtulach@101 | 55 |
} |
| jtulach@101 | 56 |
|
| jtulach@153 | 57 |
static <C extends ProjectConfiguration> ResetToZero<C> create(ProjectConfigurationProvider<C> p) {
|
| jtulach@101 | 58 |
return new ResetToZero<C>(p); |
| jtulach@101 | 59 |
} |
| jtulach@101 | 60 |
|
| jtulach@101 | 61 |
public void obtainFirst() {
|
| jtulach@101 | 62 |
active = provider.getConfigurations()[0]; |
| jtulach@101 | 63 |
} |
| jtulach@101 | 64 |
|
| jtulach@101 | 65 |
public void apply() {
|
| jtulach@101 | 66 |
provider.setActive(active); |
| jtulach@101 | 67 |
} |
| jtulach@101 | 68 |
} |
| jtulach@101 | 69 |
// END: misuse.prjconfig.correct.openclass |
| jtulach@101 | 70 |
|
| jtulach@101 | 71 |
} |