org.apache.beam.sdk.values

Class WindowedValues

java.lang.Object

org.apache.beam.sdk.values.WindowedValues

@Internal
public class WindowedValues
extends java.lang.Object

Implementations of WindowedValue and static utility methods.

These are primarily intended for internal use by Beam SDK developers and runner developers. Backwards incompatible changes will likely occur.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	WindowedValues.FullWindowedValueCoder<T> Coder for WindowedValue.
static class	WindowedValues.ParamWindowedValueCoder<T> A parameterized coder for WindowedValue.
static interface	WindowedValues.SingleWindowedValue A WindowedValues which holds exactly single window per value.
static class	WindowedValues.ValueOnlyWindowedValueCoder<T> Deprecated. Use ParamWindowedValueCoder instead, it is a general purpose implementation of the same concept but makes timestamp, windows and pane info configurable.
static class	WindowedValues.WindowedValueCoder<T> Abstract class for WindowedValue coder.

Method Summary

Modifier and Type	Method and Description
static <T> boolean	equals(@Nullable WindowedValue<T> left, @Nullable WindowedValue<T> right)
static <T> WindowedValues.FullWindowedValueCoder<T>	getFullCoder(Coder<T> valueCoder, Coder<? extends BoundedWindow> windowCoder) Returns the Coder to use for a WindowedValue<T>, using the given valueCoder and windowCoder.
static <T> WindowedValues.ParamWindowedValueCoder<T>	getParamWindowedValueCoder(Coder<T> valueCoder) Returns the ParamWindowedValueCoder from the given valueCoder.
static <T> WindowedValues.ValueOnlyWindowedValueCoder<T>	getValueOnlyCoder(Coder<T> valueCoder) Returns the ValueOnlyCoder from the given valueCoder.
static <T> int	hashCode(WindowedValue<T> windowedValue)
static <T> WindowedValue<T>	of(T value, Instant timestamp, BoundedWindow window, PaneInfo paneInfo) Returns a WindowedValue with the given value, timestamp, and window.
static <T> WindowedValue<T>	of(T value, Instant timestamp, java.util.Collection<? extends BoundedWindow> windows, PaneInfo paneInfo) Returns a WindowedValue with the given value, timestamp, and windows.
static <T> WindowedValue<T>	timestampedValueInGlobalWindow(T value, Instant timestamp) Returns a WindowedValue with the given value and timestamp, GlobalWindow and default pane.
static <T> WindowedValue<T>	timestampedValueInGlobalWindow(T value, Instant timestamp, PaneInfo paneInfo) Returns a WindowedValue with the given value, timestamp, and pane in the GlobalWindow.
static <T> WindowedValue<T>	valueInGlobalWindow(T value) Returns a WindowedValue with the given value in the GlobalWindow using the default timestamp and pane.
static <T> WindowedValue<T>	valueInGlobalWindow(T value, PaneInfo paneInfo) Returns a WindowedValue with the given value in the GlobalWindow using the default timestamp and the specified pane.
static <OldT,NewT> WindowedValue<NewT>	withValue(WindowedValue<OldT> windowedValue, NewT newValue) Returns a new WindowedValue that is a copy of this one, but with a different value, which may have a new type NewT.

Methods inherited from class java.lang.Object

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

Method Detail

of

public static <T> WindowedValue<T> of(T value,
                                      Instant timestamp,
                                      java.util.Collection<? extends BoundedWindow> windows,
                                      PaneInfo paneInfo)

Returns a WindowedValue with the given value, timestamp, and windows.

of

public static <T> WindowedValue<T> of(T value,
                                      Instant timestamp,
                                      BoundedWindow window,
                                      PaneInfo paneInfo)

Returns a WindowedValue with the given value, timestamp, and window.

valueInGlobalWindow

public static <T> WindowedValue<T> valueInGlobalWindow(T value)

Returns a WindowedValue with the given value in the GlobalWindow using the default timestamp and pane.

valueInGlobalWindow

public static <T> WindowedValue<T> valueInGlobalWindow(T value,
                                                       PaneInfo paneInfo)

Returns a WindowedValue with the given value in the GlobalWindow using the default timestamp and the specified pane.

timestampedValueInGlobalWindow

public static <T> WindowedValue<T> timestampedValueInGlobalWindow(T value,
                                                                  Instant timestamp)

Returns a WindowedValue with the given value and timestamp, GlobalWindow and default pane.

timestampedValueInGlobalWindow

public static <T> WindowedValue<T> timestampedValueInGlobalWindow(T value,
                                                                  Instant timestamp,
                                                                  PaneInfo paneInfo)

Returns a WindowedValue with the given value, timestamp, and pane in the GlobalWindow.

withValue

public static <OldT,NewT> WindowedValue<NewT> withValue(WindowedValue<OldT> windowedValue,
                                                        NewT newValue)

Returns a new WindowedValue that is a copy of this one, but with a different value, which may have a new type NewT.

equals

public static <T> boolean equals(@Nullable WindowedValue<T> left,
                                 @Nullable WindowedValue<T> right)

hashCode

public static <T> int hashCode(WindowedValue<T> windowedValue)

getFullCoder

public static <T> WindowedValues.FullWindowedValueCoder<T> getFullCoder(Coder<T> valueCoder,
                                                                        Coder<? extends BoundedWindow> windowCoder)

Returns the Coder to use for a WindowedValue<T>, using the given valueCoder and windowCoder.

getValueOnlyCoder

public static <T> WindowedValues.ValueOnlyWindowedValueCoder<T> getValueOnlyCoder(Coder<T> valueCoder)

Returns the ValueOnlyCoder from the given valueCoder.

getParamWindowedValueCoder

public static <T> WindowedValues.ParamWindowedValueCoder<T> getParamWindowedValueCoder(Coder<T> valueCoder)

Returns the ParamWindowedValueCoder from the given valueCoder.