EntityMetadata (Objectify App Engine 6.0.7 API)

java.lang.Object
- com.googlecode.objectify.impl.EntityMetadata<P>

```
public class EntityMetadata<P>
extends Object
```
Holds basic information about POJO entities, and can translate back and forth to the datastore representation.

Author:

Jeff Schnitzer

Constructor Summary

Constructors
Constructor Description

EntityMetadata(ObjectifyFactory fact, Class<P> clazz)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Integer`	`getCacheExpirySeconds()`	Get the expiry associated with this kind, defined by the @Cached annotation.
`P`	`load(com.google.cloud.datastore.BaseEntity<?> ent, LoadContext ctx)`	Converts an entity to an object of the appropriate type for this metadata structure.
`com.google.cloud.datastore.FullEntity<?>`	`save(P pojo, SaveContext ctx)`	Converts an object to a datastore Entity with the appropriate Key type.

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

- Constructor Detail
  - EntityMetadata
```
public EntityMetadata(ObjectifyFactory fact,
                      Class<P> clazz)
```
    Parameters:
    
    clazz - must have @Entity in its hierarchy
- Method Detail
  - getCacheExpirySeconds
```
public Integer getCacheExpirySeconds()
```
    Get the expiry associated with this kind, defined by the @Cached annotation. For polymorphic types, this is always the instruction on the root @Entity - you cannot provide per-type caching.
    
    Returns:
    
    null means DO NOT CACHE, 0 means "no limit", otherwise # of seconds
  - load
```
public P load(com.google.cloud.datastore.BaseEntity<?> ent,
              LoadContext ctx)
```
    Converts an entity to an object of the appropriate type for this metadata structure. Does not check that the entity is appropriate; that should be done when choosing which EntityMetadata to call.
  - save
```
public com.google.cloud.datastore.FullEntity<?> save(P pojo,
                                                     SaveContext ctx)
```
    Converts an object to a datastore Entity with the appropriate Key type.