If (Objectify App Engine 6.0.7 API)

All Known Implementing Classes:

Always, IfDefault, IfEmpty, IfEmptyString, IfFalse, IfNotDefault, IfNotEmpty, IfNotNull, IfNotZero, IfNull, IfTrue, IfZero, PojoIf, ValueIf
```
public interface If<V,P>
```
A simple interface that defines a condition test for a field value or whole entity. For example, you could have a class that tests against null values called IfNull. This interface is used by the @IgnoreSave, @Index, and @Unindex annotations.

The matching engine will call both methods; if either return true the condition is considered true.

All implementations of this interface will be created with ObjectifyFactory.construct(). If the implementation also implements the InitializeIf interface, the init() method will be called immediately after construction.

Author:

Jeff Schnitzer

See Also:

InitializeIf, ObjectifyFactory.construct(Class)

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`matchesPojo(P pojo)`	Override this method to test a whole pojo for your condition.
`boolean`	`matchesValue(V value)`	Test a simple property value.

- Method Detail
  - matchesValue
```
boolean matchesValue(V value)
```
    Test a simple property value.
    
    Parameters:
    
    value - is the actual value of a particular field
    
    Returns:
    
    true if the value matches the condition defined by an instance of this interface.
  - matchesPojo
```
boolean matchesPojo(P pojo)
```
    Override this method to test a whole pojo for your condition. The pojo might be an entity or an embedded class object - whichever holds the field being tested.
    
    Parameters:
    
    pojo - is the entity object on which the field/value exists
    
    Returns:
    
    true if the value matches the condition defined by an instance of this interface.