Bug 149251 Inconsistent Handling of a Non-inheritable ROM Property
For a ROM property defined to be non-inheritable, an empty string property value should be consistently handled as an empty string, not as null. For example, an oda.dataSource extension defines a data source property with canInherit=false. When a oda-data-source handle get saved in a report design, it correctly includes the tag for such property, even when an empty string value is specified. <oda-data-source extensionID="my.oda.plugin" name="my Data Source" id="24"> ... <property name="ApplicationServer"></property> </oda-data-source> However, later when using the DE API to read its property value, a null is returned. Then when the report design is subsequently saved, the property tag is lost. Expects that an empty string value of a non-inhertiable property should be preserved.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ModuleHandle.java
import org.eclipse.birt.report.model.api.validators.IValidationListener;
import org.eclipse.birt.report.model.api.validators.ValidationEvent;
import org.eclipse.birt.report.model.command.CustomMsgCommand;
import org.eclipse.birt.report.model.command.LibraryCommand;
import org.eclipse.birt.report.model.command.PropertyCommand;
import org.eclipse.birt.report.model.command.ShiftLibraryCommand;
import org.eclipse.birt.report.model.command.ThemeCommand;
import org.eclipse.birt.report.model.core.CachedMemberRef;
import org.eclipse.birt.report.model.core.DesignElement;
import org.eclipse.birt.report.model.core.Module;
import org.eclipse.birt.report.model.core.Structure;
import org.eclipse.birt.report.model.core.StyleElement;
import org.eclipse.birt.report.model.core.namespace.IModuleNameSpace;
import org.eclipse.birt.report.model.css.StyleSheetLoader;
import org.eclipse.birt.report.model.elements.CascadingParameterGroup;
import org.eclipse.birt.report.model.elements.DataSet;
import org.eclipse.birt.report.model.elements.JointDataSet;
import org.eclipse.birt.report.model.elements.Library;
import org.eclipse.birt.report.model.elements.TemplateParameterDefinition;
import org.eclipse.birt.report.model.elements.Theme;
import org.eclipse.birt.report.model.elements.Translation;
import org.eclipse.birt.report.model.elements.interfaces.IReportDesignModel;
import org.eclipse.birt.report.model.metadata.ElementPropertyDefn;
import org.eclipse.birt.report.model.util.ModelUtil;
import com.ibm.icu.util.ULocale;
/**
 * Abstract module handle which provides the common functionalities of report
 * design and library.
 * 
 * <table border="1" cellpadding="2" cellspacing="2" style="border-collapse: