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FieldValue

public abstract class FieldValue extends Object

Sentinel values that can be used when writing document fields with set() or update().

Public Method Summary

static FieldValue
arrayRemove(Object... elements)
Returns a special value that can be used with set() or update() that tells the server to remove the given elements from any array value that already exists on the server.
static FieldValue
arrayUnion(Object... elements)
Returns a special value that can be used with set() or update() that tells the server to union the given elements with any array value that already exists on the server.
static FieldValue
delete()
Returns a sentinel for use with update() to mark a field for deletion.
static FieldValue
increment(double l)
Returns a special value that can be used with set() or update() that tells the server to increment the field's current value by the given value.
static FieldValue
increment(long l)
Returns a special value that can be used with set() or update() that tells the server to increment the field's current value by the given value.
static FieldValue
serverTimestamp()
Returns a sentinel for use with set() or update() to include a server-generated timestamp in the written data.

Inherited Method Summary