| author | Jaroslav Tulach <jtulach@netbeans.org> |
| Sat, 14 Jun 2008 10:04:53 +0200 | |
| changeset 210 | acf2c31e22d4 |
| parent 209 | 1c999569643b |
| 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@154 | 5 |
interface ProjectConfigurationProvider |
| jtulach@154 | 6 |
<Configuration extends ProjectConfiguration> {
|
| jtulach@210 | 7 |
public Configuration[] getConfigurations(); |
| jtulach@210 | 8 |
public Configuration getActive(); |
| jtulach@210 | 9 |
public void setActive(Configuration c); |
| jtulach@101 | 10 |
} |
| jtulach@101 | 11 |
interface ProjectConfiguration {
|
| jtulach@101 | 12 |
public String getDisplayName(); |
| jtulach@101 | 13 |
} |
| jtulach@101 | 14 |
// END: misuse.prjconfig.correct |
| jtulach@101 | 15 |
|
| jtulach@101 | 16 |
|
| jtulach@101 | 17 |
|
| jtulach@101 | 18 |
/* Following does not work: |
| jtulach@101 | 19 |
static {
|
| jtulach@101 | 20 |
// BEGIN: misuse.prjconfig.correct.trivial.access |
| jtulach@154 | 21 |
ProjectConfigurationProvider<?> provider = null; // obtain elsewhere; |
| jtulach@101 | 22 |
provider.setActive(provider.getConfigurations()[0]); |
| jtulach@101 | 23 |
// END: misuse.prjconfig.correct.trivial.access |
| jtulach@101 | 24 |
} |
| jtulach@101 | 25 |
*/ |
| jtulach@101 | 26 |
|
| jtulach@210 | 27 |
static |
| jtulach@210 | 28 |
// BEGIN: misuse.prjconfig.correct.access |
| jtulach@210 | 29 |
{
|
| jtulach@154 | 30 |
ProjectConfigurationProvider<?> provider = null; // obtain elsewhere; |
| jtulach@101 | 31 |
resetToZero(provider); |
| jtulach@101 | 32 |
} |
| jtulach@210 | 33 |
// END: misuse.prjconfig.correct.access |
| jtulach@101 | 34 |
|
| jtulach@101 | 35 |
// BEGIN: misuse.prjconfig.correct.openmethod |
| jtulach@101 | 36 |
private static <C extends ProjectConfiguration> void resetToZero( |
| jtulach@101 | 37 |
ProjectConfigurationProvider<C> provider |
| jtulach@101 | 38 |
) {
|
| jtulach@101 | 39 |
provider.setActive(provider.getConfigurations()[0]); |
| jtulach@101 | 40 |
} |
| jtulach@101 | 41 |
// END: misuse.prjconfig.correct.openmethod |
| jtulach@101 | 42 |
|
| jtulach@101 | 43 |
// BEGIN: misuse.prjconfig.correct.openclass |
| jtulach@154 | 44 |
static void workWithProjectConfigurationProvider( |
| jtulach@154 | 45 |
ProjectConfigurationProvider<?> p |
| jtulach@154 | 46 |
) {
|
| jtulach@101 | 47 |
ResetToZero<?> rtz = ResetToZero.create(p); |
| jtulach@101 | 48 |
rtz.obtainFirst(); |
| jtulach@101 | 49 |
// after a while |
| jtulach@101 | 50 |
rtz.apply(); |
| jtulach@101 | 51 |
} |
| jtulach@101 | 52 |
|
| jtulach@101 | 53 |
static class ResetToZero<C extends ProjectConfiguration> {
|
| jtulach@101 | 54 |
C active; |
| jtulach@101 | 55 |
final ProjectConfigurationProvider<C> provider; |
| jtulach@101 | 56 |
|
| jtulach@101 | 57 |
ResetToZero(ProjectConfigurationProvider<C> provider) {
|
| jtulach@101 | 58 |
this.provider = provider; |
| jtulach@101 | 59 |
} |
| jtulach@101 | 60 |
|
| jtulach@154 | 61 |
static <C extends ProjectConfiguration> ResetToZero<C> create( |
| jtulach@154 | 62 |
ProjectConfigurationProvider<C> p |
| jtulach@154 | 63 |
) {
|
| jtulach@101 | 64 |
return new ResetToZero<C>(p); |
| jtulach@101 | 65 |
} |
| jtulach@101 | 66 |
|
| jtulach@101 | 67 |
public void obtainFirst() {
|
| jtulach@101 | 68 |
active = provider.getConfigurations()[0]; |
| jtulach@101 | 69 |
} |
| jtulach@101 | 70 |
|
| jtulach@101 | 71 |
public void apply() {
|
| jtulach@101 | 72 |
provider.setActive(active); |
| jtulach@101 | 73 |
} |
| jtulach@101 | 74 |
} |
| jtulach@101 | 75 |
// END: misuse.prjconfig.correct.openclass |
| jtulach@101 | 76 |
|
| jtulach@101 | 77 |
} |