de.schwarzrot.data.meta.support
Class AbstractMetaEntity<N extends Comparable<?>>

java.lang.Object
  com.jgoodies.binding.beans.Model
      de.schwarzrot.data.support.AbstractEntity
          de.schwarzrot.data.meta.support.AbstractMetaEntity<N>

All Implemented Interfaces:

com.jgoodies.binding.beans.Observable, Entity, MetaEntity<N>, NamedEntity<N>, Serializable, Comparable<Entity>

Direct Known Subclasses:

AbstractMetaChildEntity, DatabaseModel

public abstract class AbstractMetaEntity<N extends Comparable<?>>
extends AbstractEntity
implements MetaEntity<N>

See Also:

Serialized Form

Field Summary

static String

MODEL_SCHEMA

Constructor Summary

AbstractMetaEntity()

AbstractMetaEntity(AbstractMetaEntity<N> other)

Method Summary

int	compareTo(Entity other)
String	getComment() getter of the MetaEntitys comment
String	getLogicalName()
Map<String,String>	getMappings() returns a map with mappings of logical property names to physical property names (column names in database terms).
N	getName()
long	getPhysID()
String	getSchemaName() returns the schema for this entity.
List<String>	getUniqColumnNames() returns a list of property names, which serve to detect a uniq instance without the usage of the primary key.
void	setComment(String comment) setter of the MetaEntitys comment
void	setName(N name)
void	setPhysID(long physID)

Methods inherited from class de.schwarzrot.data.support.AbstractEntity

adoptChildren, adoptChildren, adoptGroupedChildren, equals, getCModified, getCode, getDefaultOrder, getDtCreated, getDtModified, getId, getLogger, getPersistenceName, getSkipList, getSystemClass, getUCreated, getUModified, getUserAttributes, getVariantColumnName, getVariantTypeMap, hashCode, isDirty, isUserType, isVirtual, setCModified, setDirty, setDtCreated, setDtModified, setId, setSchemaName, setUCreated, setUModified, toString, validate

Methods inherited from class com.jgoodies.binding.beans.Model

addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, addVetoableChangeListener, equals, fireIndexedPropertyChange, fireIndexedPropertyChange, fireIndexedPropertyChange, fireMultiplePropertiesChanged, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, getPropertyChangeListeners, getPropertyChangeListeners, getVetoableChangeListeners, getVetoableChangeListeners, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, removeVetoableChangeListener

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface de.schwarzrot.data.Entity

getCModified, getDefaultOrder, getDtCreated, getDtModified, getId, getPersistenceName, getSkipList, getSystemClass, getUCreated, getUModified, getUserAttributes, getVariantColumnName, getVariantTypeMap, isDirty, isUserType, isVirtual, setCModified, setDirty, setDtCreated, setDtModified, setId, setUCreated, setUModified, validate

Methods inherited from interface com.jgoodies.binding.beans.Observable

addPropertyChangeListener, removePropertyChangeListener

Field Detail

MODEL_SCHEMA

public static final String MODEL_SCHEMA

See Also:

Constant Field Values

Constructor Detail

AbstractMetaEntity

public AbstractMetaEntity()

AbstractMetaEntity

public AbstractMetaEntity(AbstractMetaEntity<N> other)

Method Detail

compareTo

public int compareTo(Entity other)

Specified by:

compareTo in interface Comparable<Entity>

Overrides:

compareTo in class AbstractEntity

getComment

public final String getComment()

Description copied from interface: MetaEntity

getter of the MetaEntitys comment

Specified by:

getComment in interface MetaEntity<N extends Comparable<?>>

Returns:

the comment or null

getLogicalName

public String getLogicalName()

Specified by:

getLogicalName in interface MetaEntity<N extends Comparable<?>>

getMappings

public Map<String,String> getMappings()

Description copied from interface: Entity

returns a map with mappings of logical property names to physical property names (column names in database terms).

Every implementation should respect the parents mappings. The following sample shows different mapping types:

 public Map<String, String> getMappings() {
     Map<String, String> mappings = super.getMappings();
     mappings.put("title", "name");
     mappings.put("streams", Stream.class.getName());
     mappings.put("pageDefinitions", "pageType|" + ThemeElement.class.getName());
     return mappings;
 }
 

The mappings explained:

"title" -> "name"

the logical "title"-attribute is stored to persistence with a physical name "name"

"streams" -> Stream.class.getName()

the "streams" property holds related children. Unknown children are hold in a List, known (named) children are hold in a Map. The mapped value is used as classname to create child instances.

"pageDefinitions" -> "pageType|" + ThemeElement.class.getName()

pageDefinitions is a property of type Map, that holds grouped children. Known children are hold by a Map, unknown children by a List, so "pageDefinitions" may contain elements of type Map, or List. pageType, a property of ThemeElement, is used to group the children. The word before the '|' is the property name used as key value for grouping and the type after '|' is used to create instances.

Specified by:

getMappings in interface Entity

Overrides:

getMappings in class AbstractEntity

Returns:

a Map with property names as keys and column names as values.

getName

public N getName()

Specified by:

getName in interface NamedEntity<N extends Comparable<?>>

getPhysID

public final long getPhysID()

getSchemaName

public String getSchemaName()

Description copied from interface: Entity

returns the schema for this entity. Not all storage types support schemata, so on systems, where the schema is not supported, it will be a prefix to the persistent name.

Specified by:

getSchemaName in interface Entity

Overrides:

getSchemaName in class AbstractEntity

Returns:

a schema name

getUniqColumnNames

public List<String> getUniqColumnNames()

Description copied from interface: Entity

returns a list of property names, which serve to detect a uniq instance without the usage of the primary key. In database context this list is used to decide, whether a save operation needs an update or an insert.

Specified by:

getUniqColumnNames in interface Entity

Overrides:

getUniqColumnNames in class AbstractEntity

Returns:

a list of property names

setComment

public final void setComment(String comment)

Description copied from interface: MetaEntity

setter of the MetaEntitys comment

Specified by:

setComment in interface MetaEntity<N extends Comparable<?>>

Parameters:

comment - the comment to set

setName

public void setName(N name)

Specified by:

setName in interface NamedEntity<N extends Comparable<?>>

setPhysID

public final void setPhysID(long physID)