NexusDB

 
Declaration

TnxKeyFieldDescriptor = class(TnxLocalizedDictionaryItem)

 
Description

A Key Field Descriptor is used by a Key Descriptor to describe how field values processed when creating the key.

 
Methods

CheckValid

This method is called to check the validity of the item. If a descendant needs to validate settings, this method should be overridden and on error raise a an exception.

Destroy

destructor.

IsEqual

The IsEqual function should return true if the given aDictionaryItem is of the same type and has *exactly* the same settings. Should be overridden by all descendants.

LoadFromReader

The text for this method has been generated automatically. This means that it is not documented.

SaveToWriter

The text for this method has been generated automatically. This means that it is not documented.

 
Properties

Ascend

If true the keys should be sorted ascending otherwise descending.

Desc

Used to store the description for this descriptor.

Field

This is a pointer to the associated Field descriptor.

FieldNumber

This property returns the index of the associated field in the field list of the Data Dictionary.

KeyChars

The text for this property has been generated automatically. This means that it is not documented.

KeyFieldEngine

The name of the Key Field Engine to create the Keys for each field.

KeyLength

The text for this property has been generated automatically. This means that it is not documented.

NullBehaviour

The text for this property has been generated automatically. This means that it is not documented.

OverrideLengthBytes

The text for this property has been generated automatically. This means that it is not documented.

OverrideLengthChars

The text for this property has been generated automatically. This means that it is not documented.

 
File

 
nxsdDataDictionary