ofbiz 之服务 实体api 积累
1：根据delegator 获取 LocalDispatcher
???? LocalDispatcher thisDispatcher = GenericDispatcher.getLocalDispatcher(delegator.getDelegatorName(), delegator);
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2：根据dispatcher 获取 DispatcherContext
??? DispatchContext?dctx ?=
??????? dispatcher.getDispatchContext();
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3:获取一个GenericValue对象的所有字段
?? GenericDelegator delegator =? DelegatorFactory.getDelegator("default");??
?? GenericValue tmp? = delegator.makeValue("UserLogin");
?? String entityName = tmp.getEntityName();
?? ModelEntity entity = delegator.getModelEntity(entityName);
???List fieldNameList = entity.getAllFieldNames();
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4:----
?? ServiceDispatcher sd = ServiceDispatcher.getInstance(dispatcherName, delegator)；
??? LocalDispatcher dispatcher = sd.getLocalDispatcher(dispatcherName);
??? dispatcher = new GenericDispatcher(dispatcherName, delegator, readerURLs, loader, sd);
??? DispatchContext dc = new DispatchContext(name, readerURLs, loader, null);
5:ofbiz URL
??? URL formFileUrl = FlexibleLocation.resolveLocation(resourceName);
??? resourceName:component://common/widget/LookupForms.xml
??? formFileUrl:file:/E:/workspace/cpsp20110819/framework/common/widget/LookupForms.xml
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?Set<String> groupNames = getModelGroupReader().getGroupNames(delegatorBaseName);
??????? for (String groupName: groupNames) {
??????????? GenericHelperInfo helperInfo = this.getGroupHelperInfo(groupName);
??????????? String helperBaseName = helperInfo.getHelperBaseName();
??????????? if (Debug.infoOn()) Debug.logInfo("Delegator "" + delegatorFullName + "" initializing helper "" +
??????????????????? helperBaseName + "" for entity group "" + groupName + "".", module);
??????????? if (UtilValidate.isNotEmpty(helperInfo.getHelperFullName())) {
??????????????? // pre-load field type defs, the return value is ignored
??????????????? ModelFieldTypeReader.getModelFieldTypeReader(helperBaseName);
??????????????? // get the helper and if configured, do the datasource check
??????????????? GenericHelper helper = GenericHelperFactory.getHelper(helperInfo);
??????????????? DatasourceInfo datasourceInfo = EntityConfigUtil.getDatasourceInfo(helperBaseName);
??????????????? if (datasourceInfo.checkOnStart) {
??????????????????? if (Debug.infoOn()) Debug.logInfo("Doing database check as requested in entityengine.xml with addMissing=" + datasourceInfo.addMissingOnStart, module);
??????????????????? try {
??????????????????????? helper.checkDataSource(this.getModelEntityMapByGroup(groupName), null, datasourceInfo.addMissingOnStart);
??????????????????? } catch (GenericEntityException e) {
??????????????????????? Debug.logWarning(e, e.getMessage(), module);
??????????????????? }
??????????????? }
??????????? }
??????? }
6： 获取所有实体名称
????Set<String> entitys = delegator.getModelReader().getEntityNames();
????entityArr =? delegator.getModelReader().getEntityNames().toArray(new String[entitys.size()]);
7：清除实体缓存
??? Cache entityCache = delegator.getCache();
??? entityCache.remove(entityName);
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8 : xml 中取${}值
??????? FlexibleStringExpander fse = FlexibleStringExpander.getInstance(expression);
??????? return fse.expandString(context, timeZone, locale);
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9: xml 获取多个 不同节点
??????? Set<String> nameSet = UtilMisc.toSet("set", "action","log");
??? ??? for (Element actionOrSetElementOrLog : UtilXml.childElementList(eca, nameSet)) {
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10 : String 类型xml? 与 Map 互相转换
??????? XmlSerializer.deserialize
??????? XmlSerializer.serialize
11:类型转化类的加载
Iterator<ConverterLoader> converterLoaders = ServiceLoader.load(ConverterLoader.class, loader).iterator();
