Package org.apache.accumulo.core.data.constraints

Class DefaultKeySizeConstraint

java.lang.Object

org.apache.accumulo.core.data.constraints.DefaultKeySizeConstraint

All Implemented Interfaces:

Constraint

public class DefaultKeySizeConstraint
extends Object
implements Constraint

A constraints that limits the size of keys to 1mb.

This was moved from the org.apache.accumulo.core.constraints package since 2.1.0

Since:

2.1.0

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.accumulo.core.data.constraints.Constraint

Constraint.Environment

Field Summary

Fields

Modifier and Type	Field	Description
protected static final short	MAX__KEY_SIZE_EXCEEDED_VIOLATION
protected static final long	maxSize

Constructor Summary

Constructors

Constructor	Description
DefaultKeySizeConstraint()

Method Summary

Modifier and Type	Method	Description
List<Short>	check(Constraint.Environment env, Mutation mutation)	Checks a mutation for constraint violations.
String	getViolationDescription(short violationCode)	Gets a short, one-sentence description of what a given violation code means.

Methods inherited from class java.lang.Object

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

Field Details

MAX__KEY_SIZE_EXCEEDED_VIOLATION

protected static final short MAX__KEY_SIZE_EXCEEDED_VIOLATION

See Also:

• Constant Field Values

maxSize

protected static final long maxSize

See Also:

• Constant Field Values

Constructor Details

DefaultKeySizeConstraint

public DefaultKeySizeConstraint()

Method Details

getViolationDescription

public String getViolationDescription(short violationCode)

Description copied from interface: Constraint

Gets a short, one-sentence description of what a given violation code means.

Specified by:

getViolationDescription in interface Constraint

Parameters:

violationCode - numeric violation code

Returns:

matching violation description

check

public List<Short> check(Constraint.Environment env,
 Mutation mutation)

Description copied from interface: Constraint

Checks a mutation for constraint violations. If the mutation contains no violations, returns null. Otherwise, returns a list of violation codes. Violation codes must be non-negative. Negative violation codes are reserved for system use.

Specified by:

check in interface Constraint

Parameters:

env - constraint environment

mutation - mutation to check

Returns:

list of violation codes, or null if none