Set Gemfire entry-ttl in Java Beans -

i create gemfire region in spring boot application. following sample, works wihout adding database support. if add database, shows error " error creating bean name 'datasource'". however, default gemfire cache bean works datasource integration.

@enableautoconfiguration // sprint boot auto configuration @componentscan(basepackages = "napo.demo") @enablecaching @suppresswarnings("unused") public class application extends springbootservletinitializer {  private static final class<application> applicationclass = application.class; private static final logger log = loggerfactory.getlogger(applicationclass);  public static void main(string[] args) {     springapplication.run(applicationclass, args); }  /* **the commented code works database.** @bean cachefactorybean cachefactorybean() {     return new cachefactorybean(); }  @bean replicatedregionfactorybean<integer, integer> replicatedregionfactorybean(final cache cache) {      replicatedregionfactorybean<integer, integer> region= new replicatedregionfactorybean<integer, integer>() {{         setcache(cache);         setname("demo");      }};      return region; }  */ // configuration cause issue beow  //  

org.springframework.beans.factory.beancreationexception: error creating bean name 'datasource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/datasourceautoconfiguration$nonembeddedconfiguration.class]: bean instantiation via factory method failed; nested exception org.springframework.beans.beaninstantiationexception: failed instantiate [javax.sql.datasource]: factory method 'datasource' threw exception; nested exception java.lang.nullpointerexception

@bean gemfirecachemanager cachemanager(final cache gemfirecache) {     return new gemfirecachemanager() {         {             setcache(gemfirecache);         }     }; }   // note ideally, "placeholder" properties used spring's propertyplaceholderconfigurer externalized     // in order avoid re-compilation on property value changes (so... example)!     @bean     public properties placeholderproperties() {         properties placeholders = new properties();          placeholders.setproperty("app.gemfire.region.eviction.action", "local_destroy");         placeholders.setproperty("app.gemfire.region.eviction.policy-type", "memory_size");         placeholders.setproperty("app.gemfire.region.eviction.threshold", "4096");         placeholders.setproperty("app.gemfire.region.expiration.entry.tti.action", "invalidate");         placeholders.setproperty("app.gemfire.region.expiration.entry.tti.timeout", "300");         placeholders.setproperty("app.gemfire.region.expiration.entry.ttl.action", "destroy");         placeholders.setproperty("app.gemfire.region.expiration.entry.ttl.timeout", "60");         placeholders.setproperty("app.gemfire.region.partition.local-max-memory", "16384");         placeholders.setproperty("app.gemfire.region.partition.redundant-copies", "1");         placeholders.setproperty("app.gemfire.region.partition.total-max-memory", "32768");          return placeholders;     }      @bean     public propertyplaceholderconfigurer propertyplaceholderconfigurer(             @qualifier("placeholderproperties") properties placeholders) {         propertyplaceholderconfigurer propertyplaceholderconfigurer = new propertyplaceholderconfigurer();         propertyplaceholderconfigurer.setproperties(placeholders);         return propertyplaceholderconfigurer;     }      @bean     public properties gemfireproperties() {         properties gemfireproperties = new properties();          gemfireproperties.setproperty("name", "springgemfirejavaconfigtest");         gemfireproperties.setproperty("mcast-port", "0");         gemfireproperties.setproperty("log-level", "config");          return gemfireproperties;     }      @bean     @autowired     public cachefactorybean gemfirecache(@qualifier("gemfireproperties") properties gemfireproperties) throws exception {         cachefactorybean cachefactory = new cachefactorybean();         cachefactory.setproperties(gemfireproperties);         return cachefactory;     }       @bean(name = "examplepartition")     @autowired     public replicatedregionfactorybean<object, object> examplepartitionregion(cache gemfirecache,             @qualifier("partitionregionattributes") regionattributes<object, object> regionattributes) throws exception {          replicatedregionfactorybean<object, object> examplepartitionregion =             new replicatedregionfactorybean<object, object>();          examplepartitionregion.setattributes(regionattributes);         examplepartitionregion.setcache(gemfirecache);         examplepartitionregion.setname("demo");           return examplepartitionregion;     }      @bean     @autowired     public regionattributesfactorybean partitionregionattributes(             evictionattributes evictionattributes,             @qualifier("entryttiexpirationattributes") expirationattributes entrytti,             @qualifier("entryttlexpirationattributes") expirationattributes entryttl) {          regionattributesfactorybean regionattributes = new regionattributesfactorybean();          regionattributes.setevictionattributes(evictionattributes);         regionattributes.setentryidletimeout(entrytti);         regionattributes.setentrytimetolive(entryttl);           return regionattributes;     }      @bean     public evictionattributesfactorybean defaultevictionattributes(             @value("${app.gemfire.region.eviction.action}") string action,             @value("${app.gemfire.region.eviction.policy-type}") string policytype,             @value("${app.gemfire.region.eviction.threshold}") int threshold) {          evictionattributesfactorybean evictionattributes = new evictionattributesfactorybean();          evictionattributes.setaction(evictionactiontype.valueofignorecase(action).getevictionaction());         evictionattributes.setthreshold(threshold);         evictionattributes.settype(evictionpolicytype.valueofignorecase(policytype));          return evictionattributes;     }      @bean     public expirationattributesfactorybean entryttiexpirationattributes(             @value("${app.gemfire.region.expiration.entry.tti.action}") string action,             @value("${app.gemfire.region.expiration.entry.tti.timeout}") int timeout) {          expirationattributesfactorybean expirationattributes = new expirationattributesfactorybean();          expirationattributes.setaction(expirationactiontype.valueofignorecase(action).getexpirationaction());         expirationattributes.settimeout(timeout);          return expirationattributes;     }      @bean     public expirationattributesfactorybean entryttlexpirationattributes(             @value("${app.gemfire.region.expiration.entry.ttl.action}") string action,             @value("${app.gemfire.region.expiration.entry.ttl.timeout}") int timeout) {          expirationattributesfactorybean expirationattributes = new expirationattributesfactorybean();          expirationattributes.setaction(expirationactiontype.valueofignorecase(action).getexpirationaction());         expirationattributes.settimeout(timeout);          return expirationattributes;     }      @bean     public partitionattributesfactorybean defaultpartitionattributes(             @value("${app.gemfire.region.partition.local-max-memory}") int localmaxmemory,             @value("${app.gemfire.region.partition.redundant-copies}") int redundantcopies,             @value("${app.gemfire.region.partition.total-max-memory}") int totalmaxmemory) {          partitionattributesfactorybean partitionattributes = new partitionattributesfactorybean();          partitionattributes.setlocalmaxmemory(localmaxmemory);         partitionattributes.setredundantcopies(redundantcopies);         partitionattributes.settotalmaxmemory(totalmaxmemory);          return partitionattributes;     }   @override protected springapplicationbuilder configure(         springapplicationbuilder application) {     return application.sources(applicationclass); }} 

demoservice java code:

@service public class demoservice {    @autowired     private demomapper demomapper;   @cacheable("demo") public fund getdemo(string code) {     demo demo= demomapper.getdemo(code);     return demo;  } 

here example of setting entry-ttl among other attributes: https://github.com/spring-projects/spring-gemfire-examples/blob/master/basic/java-config/src/main/java/org/springframework/data/gemfire/example/springjavabasedcontainergemfireconfiguration.java