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java.lang.Objectcom.google.appengine.api.datastore.Projection
com.google.appengine.api.datastore.PropertyProjection
public final class PropertyProjection
A property projection. If specified on a query, this will cause the query return the specified property.
Query.getProjections()
,
Serialized FormConstructor Summary | |
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PropertyProjection(java.lang.String propertyName,
java.lang.Class<?> type)
Constructs a property projection. |
Method Summary | |
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boolean |
equals(java.lang.Object obj)
|
java.lang.String |
getName()
Returns the name of the property this projection populates. |
java.lang.Class<?> |
getType()
Returns the type specified for this projection. |
int |
hashCode()
|
java.lang.String |
toString()
|
Methods inherited from class java.lang.Object |
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getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public PropertyProjection(java.lang.String propertyName, java.lang.Class<?> type)
RawValue.asType(Class)
will be used to restore
the original value of the property. Otherwise instances of RawValue
will be returned.
propertyName
- The name of the property to projecttype
- The type of values stored in the projected properties or
if the type is not known or variable. If null
, RawValues
are returned.Method Detail |
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public java.lang.String getName()
Projection
getName
in class Projection
public java.lang.Class<?> getType()
public java.lang.String toString()
toString
in class java.lang.Object
public int hashCode()
hashCode
in class java.lang.Object
public boolean equals(java.lang.Object obj)
equals
in class java.lang.Object
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