```
public class RMSchema
extends java.lang.Object
```
This class describes the structure of a datasource by managing a list of RMEntity.

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addEntity(RMEntity anEntity)`	Adds an entity to the list.
`java.lang.Object`	`fromXML(RXArchiver anArchiver, RXElement anElement)`	XML unarchival.
`RMEntity`	`getEntity(int anIndex)`	Returns the specific entity at the given index.
`RMEntity`	`getEntity(java.lang.String aName)`	Returns the schema entity with the given name.
`int`	`getEntityCount()`	Returns the number of entities in this schema.
`java.lang.String`	`getName()`	Returns the schema name.
`static RMProperty`	`getRelation(RMEntity anEntity, java.lang.String aKeyPath)`	Returns the relation for the given key path evaluated from the given entity.
`RMEntity`	`getRootEntity()`	Returns the root entity.
`void`	`removeEntity(RMEntity anEntity)`	Removes an entity from the list.
`void`	`setName(java.lang.String aName)`	Sets the schema name.
`java.lang.String`	`toString()`	Returns schema name.
`RXElement`	`toXML(RXArchiver anArchiver)`	XML archival.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

public void setName(java.lang.String aName)

Sets the schema name.

getEntityCount
```
public int getEntityCount()
```
Returns the number of entities in this schema.

getEntity
```
public RMEntity getEntity(int anIndex)
```
Returns the specific entity at the given index.

public void addEntity(RMEntity anEntity)

Adds an entity to the list.

public void removeEntity(RMEntity anEntity)

Removes an entity from the list.

public RMEntity getEntity(java.lang.String aName)

Returns the schema entity with the given name.

public static RMProperty getRelation(RMEntity anEntity,
                                     java.lang.String aKeyPath)

Returns the relation for the given key path evaluated from the given entity.

public RXElement toXML(RXArchiver anArchiver)

XML archival.

public java.lang.Object fromXML(RXArchiver anArchiver,
                                RXElement anElement)

XML unarchival.

Constructor	Description
`RMSchema()`	Creates a new empty schema.
`RMSchema(java.lang.String aName)`	Creates a new schema with the given name.

Class RMSchema