org.simpleds.metadata
Class ClassMetadata

java.lang.Object
  org.simpleds.metadata.ClassMetadata

public class ClassMetadata
extends java.lang.Object

Constructor Summary

ClassMetadata()

Method Summary

void	add(MultivaluedIndexMetadata metadata)
void	add(PropertyMetadata<?,?> property)
boolean	contains(java.lang.String propertyName)
com.google.appengine.api.memcache.Expiration	createCacheExpiration() Create a Expiration instance to be used with memcache
<T> T	datastoreToJava(com.google.appengine.api.datastore.Entity entity) Convert a value from Google representation to a Java value
int	getCacheSeconds()
PropertyMetadata<com.google.appengine.api.datastore.Key,com.google.appengine.api.datastore.Key>	getKeyProperty()
java.lang.String	getKind()
MultivaluedIndexMetadata	getMultivaluedIndex(java.lang.String relationIndexName)
java.util.Set<java.lang.String>	getParents()
java.lang.Class<?>	getPersistentClass()
<J,D> PropertyMetadata<J,D>	getProperty(java.lang.String propertyName)
java.util.Iterator<java.lang.String>	getPropertyNames()
java.util.Set<java.lang.String>	getRequiredProperties()
VersionManager	getVersionManager()
boolean	isCacheable()
boolean	isGenerateKeyValue()
com.google.appengine.api.datastore.Entity	javaToDatastore(com.google.appengine.api.datastore.Key parentKey, java.lang.Object javaObject) Convert a value from Java representation to a Datastore Entity
void	populate(com.google.appengine.api.datastore.Entity from, java.lang.Object to) Copy all properties from the datastore entity into the persistent class instance passed as an attribute.
void	setCacheSeconds(int cacheSeconds)
void	setGenerateKeyValue(boolean generateKey)
void	setKind(java.lang.String kind)
void	setParents(java.util.Set<java.lang.String> parents)
void	setPersistentClass(java.lang.Class<?> persistentClass)
void	setProperties(java.util.Map<java.lang.String,PropertyMetadata<?,?>> properties)
void	setVersionManager(VersionManager versionManager)
boolean	useLevel2Cache()
void	validate()
void	validateConstraints(com.google.appengine.api.datastore.Entity entity) Validate the schema constraints on the provided Entity instance
void	validateParentKey(com.google.appengine.api.datastore.Key parentKey) Validates the parent key when inserting

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ClassMetadata

public ClassMetadata()

Method Detail

datastoreToJava

public <T> T datastoreToJava(com.google.appengine.api.datastore.Entity entity)

Convert a value from Google representation to a Java value

Parameters:

entity - the persistent Entity from the google datastore

populate

public void populate(com.google.appengine.api.datastore.Entity from,
                     java.lang.Object to)

Copy all properties from the datastore entity into the persistent class instance passed as an attribute.

Parameters:

from - the entity read from the datastore

to - the java object to populate. Cannot be null.

validateConstraints

public void validateConstraints(com.google.appengine.api.datastore.Entity entity)

Validate the schema constraints on the provided Entity instance

Parameters:

entity - the entity to validate

javaToDatastore

public com.google.appengine.api.datastore.Entity javaToDatastore(com.google.appengine.api.datastore.Key parentKey,
                                                                 java.lang.Object javaObject)

Convert a value from Java representation to a Datastore Entity

Parameters:

javaObject - the Java property value

parentKey - the parent Key (may be null)

validate

public void validate()

add

public void add(PropertyMetadata<?,?> property)

contains

public boolean contains(java.lang.String propertyName)

Returns:

true if this metadata instance contains a property or key with the provided name

getPersistentClass

public java.lang.Class<?> getPersistentClass()

setPersistentClass

public void setPersistentClass(java.lang.Class<?> persistentClass)

getProperty

public <J,D> PropertyMetadata<J,D> getProperty(java.lang.String propertyName)

getMultivaluedIndex

public MultivaluedIndexMetadata getMultivaluedIndex(java.lang.String relationIndexName)

validateParentKey

public void validateParentKey(com.google.appengine.api.datastore.Key parentKey)

Validates the parent key when inserting

isCacheable

public boolean isCacheable()

Returns:

true if this class is cacheable

add

public void add(MultivaluedIndexMetadata metadata)

getPropertyNames

public java.util.Iterator<java.lang.String> getPropertyNames()

setProperties

public void setProperties(java.util.Map<java.lang.String,PropertyMetadata<?,?>> properties)

isGenerateKeyValue

public boolean isGenerateKeyValue()

setGenerateKeyValue

public void setGenerateKeyValue(boolean generateKey)

getKeyProperty

public PropertyMetadata<com.google.appengine.api.datastore.Key,com.google.appengine.api.datastore.Key> getKeyProperty()

getRequiredProperties

public java.util.Set<java.lang.String> getRequiredProperties()

getKind

public java.lang.String getKind()

setKind

public void setKind(java.lang.String kind)

setParents

public void setParents(java.util.Set<java.lang.String> parents)

getParents

public java.util.Set<java.lang.String> getParents()

getCacheSeconds

public int getCacheSeconds()

setCacheSeconds

public void setCacheSeconds(int cacheSeconds)

createCacheExpiration

public com.google.appengine.api.memcache.Expiration createCacheExpiration()

Create a Expiration instance to be used with memcache

useLevel2Cache

public boolean useLevel2Cache()

setVersionManager

public void setVersionManager(VersionManager versionManager)

getVersionManager

public VersionManager getVersionManager()