Operators, Values – Vista Imaging Vista Routing User Manual

Page 28

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Defining Routing Rules

Routing User Guide

WORM_REF

The network location of the jukebox platter where the image is stored (provided there
is a jukebox in the Imaging system).

Operators

The following operators can be used in routing rule conditions:

Operator Image

property

must…

=

Match value in rule.

!=

Not match value in rule.

<

Be less than a numeric value in rule. For date/time values, this
operator can be used for “earlier than.”

>

Be greater than a numeric value in rule. For date/time values, this
operator can be used for “later than.”

<=

Be less than or equal to a numeric or date/time value in rule.

>=

Be greater than or equal to a numeric or date/time value in rule.

Values

Values are the user-supplied part of a routing rule condition. Most values are text strings.

Values are typically enclosed in quotation marks ("). If a value contains both upper and
lowercase characters, or if it contains punctuation marks or spaces, quotation marks are
required.

Two types of wildcard characters can be used in routing rules: the asterisk (*) and the
question mark (?). The question mark allows one single character in a value to be “any
character.” The asterisk allows one or more characters to be “any character.”

The following examples demonstrate how wildcards can be used in text-based values:

PATIENT=“*CRAY*”

To meet this condition, the patient name for an image must contain the characters

CRAY

. Any characters may precede or trail these characters. Names like

CRAY

,

MCCRAY

, and

CRAYNE

will meet this condition, but

CREY

will not.

PATIENT=“SMIT?”

To meet this condition, the patient name for an image must start with the characters

SMIT

, after which exactly one character may follow. Names like

SMITH

and

SMITT

will meet this condition, but

SMITHSON

will not.

PATIENT=“PETERS?N”

To meet this condition, the patient name for an image must start with the characters
PETERS, then contain one arbitrary character, then end with N. Names like
PETERSON and PETERSEN will match this comparison, but PETERSSEN will not.

VistA Imaging V. 3.0, Patch 18

April 2006

20

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