Package org.springframework.data.cassandra.core.query

Class Update

java.lang.Object

org.springframework.data.cassandra.core.query.Update

public class Update
extends Object

Update object representing a set of update operations. Update objects can be created in a fluent style. Each construction operation creates a new immutable Update object.

 Update update = Update.empty().set("foo", "bar").addTo("baz").prependAll(listOfValues);
 

Since:

2.0

Author:

Mark Paluch, Chema Vinacua

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	Update.AddToBuilder	Builder to add a single element/multiple elements to a collection associated with a ColumnName.
static class	Update.AddToMapOp	Add element(s) to Map operation.
static class	Update.AddToOp	Add element(s) to collection operation.
static class	Update.AssignmentOp	Abstract class for an update assignment related to a specific ColumnName.
static class	Update.IncrOp	Increment operation.
static interface	Update.RemoveFromBuilder	Builder to remove a single element/multiple elements from a collection associated with a ColumnName.
static class	Update.RemoveOp	Remove operation.
static class	Update.SetAtIndexOp	Set at index operation.
static class	Update.SetAtKeyOp	Set at map key operation.
static interface	Update.SetBuilder	Builder to associate a single value with a collection at a given index at ColumnName.
static class	Update.SetOp	Set operation.
static interface	Update.SetValueBuilder	Builder to associate a single value with a collection at a given index at ColumnName.

Method Summary

Modifier and Type	Method	Description
Update.AddToBuilder	addTo(String columnName)	Create a new Update.AddToBuilder to add items to a collection for columnName in a fluent style.
Update	clear(String columnName)	Cleat the collection at columnName.
Update	decrement(String columnName)	Decrement the value at columnName by 1.
Update	decrement(String columnName, Number delta)	Decrement the value at columnName by delta.
static Update	empty()	Create an empty Update object.
Collection<Update.AssignmentOp>	getUpdateOperations()
Update	increment(String columnName)	Increment the value at columnName by 1.
Update	increment(String columnName, Number delta)	Increment the value at columnName by delta.
static Update	of(Iterable<Update.AssignmentOp> assignmentOps)	Create a Update object given a list of Update.AssignmentOps.
Update	remove(String columnName, Object value)	Remove value from the collection at columnName.
Update.RemoveFromBuilder	removeFrom(String columnName)	Create a new Update.RemoveFromBuilder to remove items from a collection for columnName in a fluent style.
Update.SetBuilder	set(String columnName)	Create a new Update.SetBuilder to set a collection item for columnName in a fluent style.
Update	set(String columnName, Object value)	Set the columnName to value.
String	toString()
static Update	update(String columnName, Object value)	Set the columnName to value.

Methods inherited from class java.lang.Object

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

Method Details

empty

public static Update empty()

Create an empty Update object.

Returns:

a new, empty Update.

of

public static Update of(Iterable<Update.AssignmentOp> assignmentOps)

Create a Update object given a list of Update.AssignmentOps.

Parameters:

assignmentOps - must not be null.

update

public static Update update(String columnName,
 @Nullable
 Object value)

Set the columnName to value.

Returns:

a new Update.

set

public Update set(String columnName,
 @Nullable
 Object value)

Set the columnName to value.

Parameters:

columnName - must not be null.

value - value to set on column with name, may be null.

Returns:

a new Update object containing the merge result of the existing assignments and the current assignment.

set

public Update.SetBuilder set(String columnName)

Create a new Update.SetBuilder to set a collection item for columnName in a fluent style.

Parameters:

columnName - must not be null.

Returns:

a new Update.AddToBuilder to build an set assignment.

addTo

public Update.AddToBuilder addTo(String columnName)

Create a new Update.AddToBuilder to add items to a collection for columnName in a fluent style.

Parameters:

columnName - must not be null.

Returns:

a new Update.AddToBuilder to build an add-to assignment.

removeFrom

public Update.RemoveFromBuilder removeFrom(String columnName)

Create a new Update.RemoveFromBuilder to remove items from a collection for columnName in a fluent style.

Parameters:

columnName - must not be null.

Returns:

a new Update.RemoveFromBuilder to build an remove-from assignment.

Since:

3.1.4

remove

public Update remove(String columnName,
 Object value)

Remove value from the collection at columnName.

Parameters:

columnName - must not be null.

value - must not be null.

Returns:

a new Update object containing the merge result of the existing assignments and the current assignment.

clear

public Update clear(String columnName)

Cleat the collection at columnName.

Parameters:

columnName - must not be null.

Returns:

a new Update object containing the merge result of the existing assignments and the current assignment.

increment

public Update increment(String columnName)

Increment the value at columnName by 1.

Parameters:

columnName - must not be null.

Returns:

a new Update object containing the merge result of the existing assignments and the current assignment.

increment

public Update increment(String columnName,
 Number delta)

Increment the value at columnName by delta.

Parameters:

columnName - must not be null.

delta - increment value.

Returns:

a new Update object containing the merge result of the existing assignments and the current assignment.

decrement

public Update decrement(String columnName)

Decrement the value at columnName by 1.

Parameters:

columnName - must not be null.

Returns:

a new Update object containing the merge result of the existing assignments and the current assignment.

decrement

public Update decrement(String columnName,
 Number delta)

Decrement the value at columnName by delta.

Parameters:

columnName - must not be null.

delta - decrement value.

Returns:

a new Update object containing the merge result of the existing assignments and the current assignment.

getUpdateOperations

public Collection<Update.AssignmentOp> getUpdateOperations()

Returns:

Collection of update operations.

toString

public String toString()

Overrides:

toString in class Object