cascading.operation.assertion

Class AssertGroupSizeEquals

java.lang.Object

cascading.operation.BaseOperation<C>

cascading.operation.assertion.BaseAssertion<AssertGroupBase.Context>

cascading.operation.assertion.AssertGroupBase

cascading.operation.assertion.AssertGroupSizeEquals

All Implemented Interfaces:

DeclaresResults, Assertion<AssertGroupBase.Context>, GroupAssertion<AssertGroupBase.Context>, Operation<AssertGroupBase.Context>, PlannedOperation<AssertGroupBase.Context>, Traceable, java.io.Serializable

public class AssertGroupSizeEquals
extends AssertGroupBase

Class AssertGroupSizeEquals is an GroupAssertion that asserts the number of items in the current group is equal the given size.

If a patternString is given, only grouping keys that match the regular expression will have this assertion applied. Note multiple key values will be delimited by a tab character.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class cascading.operation.assertion.AssertGroupBase

AssertGroupBase.Context

Field Summary

Fields inherited from class cascading.operation.assertion.AssertGroupBase

patternString, size

Fields inherited from class cascading.operation.BaseOperation

fieldDeclaration, numArgs, trace

Fields inherited from interface cascading.operation.Operation

ANY

Constructor Summary

Constructors

Constructor and Description
AssertGroupSizeEquals(long size) Constructor AssertGroupSizeEquals creates a new AssertGroupSizeEquals instance.
AssertGroupSizeEquals(java.lang.String patternString, long size) Constructor AssertGroupSizeEquals creates a new AssertGroupSizeEquals instance.

Method Summary

Modifier and Type	Method and Description
protected boolean	assertFails(java.lang.Long groupSize)
long	getSize()

Methods inherited from class cascading.operation.assertion.AssertGroupBase

aggregate, doAssert, equals, getPatternString, hashCode, prepare, start

Methods inherited from class cascading.operation.assertion.BaseAssertion

fail, fail, getMessage, supportsPlannerLevel, throwFail, throwFail

Methods inherited from class cascading.operation.BaseOperation

cleanup, flush, getFieldDeclaration, getNumArgs, getTrace, isSafe, printOperationInternal, toString, toStringInternal

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface cascading.operation.PlannedOperation

supportsPlannerLevel

Methods inherited from interface cascading.operation.Operation

cleanup, flush, getFieldDeclaration, getNumArgs, isSafe

Constructor Detail

AssertGroupSizeEquals

@ConstructorProperties(value="size")
public AssertGroupSizeEquals(long size)

Constructor AssertGroupSizeEquals creates a new AssertGroupSizeEquals instance.

Parameters:

size - of type long

AssertGroupSizeEquals

@ConstructorProperties(value={"patternString","size"})
public AssertGroupSizeEquals(java.lang.String patternString,
                                                                                    long size)

Constructor AssertGroupSizeEquals creates a new AssertGroupSizeEquals instance.

Parameters:

patternString - of type String

size - of type long

Method Detail

getSize

public long getSize()

Overrides:

getSize in class AssertGroupBase

assertFails

protected boolean assertFails(java.lang.Long groupSize)

Specified by:

assertFails in class AssertGroupBase