Class UniqueKeyHelper.NullUniqueKeyValue

java.lang.Object

com.kingsrook.qqq.backend.core.actions.tables.helpers.UniqueKeyHelper.NullUniqueKeyValue

All Implemented Interfaces:

Serializable

Enclosing class:

UniqueKeyHelper

public static class UniqueKeyHelper.NullUniqueKeyValue
extends Object
implements Serializable

To make a list of unique key values here behave like they do in an RDBMS (which is what we're trying to mimic - which is - 2 null values in a field aren't considered the same, so they don't violate a unique key) (at least, that's how some RDBMS's work, right??) - use this value instead of nulls in the output of getKeyValues - where interestingly, this class always returns false in it equals method... Unclear how bad this is, e.g., if it's violating the contract for equals and hashCode...

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
NullUniqueKeyValue()

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)

Methods inherited from class java.lang.Object

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

Constructor Details

NullUniqueKeyValue

public NullUniqueKeyValue()

Method Details

equals

public boolean equals(Object obj)

Overrides:

equals in class Object