Examples of DatabaseMapping

oracle.toplink.essentials.mappings.DatabaseMapping

Purpose: Defines how an attribute of an object maps to and from the database

Responsibilities:

Define type of relationship (1:1/1:M/M:M/etc.)
Define instance variable name and fields names required
Define any additional properties (ownership, indirection, read only, etc.)
Control building the value for the instance variable from the database row
Control building the database fields from the object
Control any pre/post updating/inserting/deleting required to maintain the relationship
Merges object changes for unit of work.
Clones objects for unit of work.
cache computed information to optimize performance

@author Sati @since TOPLink/Java 1.0

org.eclipse.persistence.mappings.DatabaseMapping

Purpose: Defines how an attribute of an object maps to and from the database

Responsibilities:

Define type of relationship (1:1/1:M/M:M/etc.)
Define instance variable name and fields names required
Define any additional properties (ownership, indirection, read only, etc.)
Control building the value for the instance variable from the database row
Control building the database fields from the object
Control any pre/post updating/inserting/deleting required to maintain the relationship
Merges object changes for unit of work.
Clones objects for unit of work.
cache computed information to optimize performance

@author Sati @since TOPLink/Java 1.0

        remove(setting);
        settings.remove(setting);
    }


    private void remove(Setting setting) {
        DatabaseMapping mapping = setting.getMapping();
        if (null != mapping) {
            Property property = null;
            if (null == setting.getName()) {
                XMLRoot xmlRoot = (XMLRoot) setting.getValue();
                if (null != xmlRoot) {
                    property = dataObject.getInstanceProperty(xmlRoot.getLocalName());
                    valuesToSettings.remove(new Key(property, setting.getValue()));
                }
            } else {
                property = dataObject.getInstanceProperty(mapping.getAttributeName());
                valuesToSettings.remove(new Key(property, setting.getValue()));
            }
            if (property.isMany()) {
                ListWrapper listWrapper = (ListWrapper) dataObject.getList(property);
                listWrapper.remove(setting.getValue(), false, false);

Examples of org.eclipse.persistence.mappings.DatabaseMapping

        return settings.size();
    }


    private Setting convertToSetting(Property property, Object value) {
        SDOProperty sdoProperty = (SDOProperty) property;
        DatabaseMapping mapping = sdoProperty.getXmlMapping();
        Setting setting = new Setting();
        SDOType sdoType = (SDOType) dataObject.getType();
        XMLDescriptor xmlDescriptor = sdoType.getXmlDescriptor();
        if (null == mapping) {
            setting.setObject(dataObject);

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.