Uses of Interface
org.openmrs.logic.op.Operator

Packages that use Operator

Package	Description
org.openmrs.logic	The OpenMRS Logic Service provides access to granular and derived data.
org.openmrs.logic.op

Uses of Operator in org.openmrs.logic

Methods in org.openmrs.logic that return Operator

Modifier and Type	Method and Description
Operator	LogicExpression.getOperator() Get the operator for the current LogicExpression
Operator	LogicTransform.getTransformOperator() Get the TransformOperator in this LogicTransform object

Methods in org.openmrs.logic with parameters of type Operator

Modifier and Type	Method and Description
LogicCriteria	LogicCriteria.appendCriteria(Operator operator, LogicCriteria logicCriteria) Append a LogicCriteria with another LogicCriteria using an operator
LogicCriteria	LogicCriteria.appendExpression(Operator operator, double operand)
LogicCriteria	LogicCriteria.appendExpression(Operator operator, Operand operand) Create a new LogicExpression using the operand and operator and then append them to the current LogicCriteria
LogicCriteria	LogicCriteria.appendExpression(Operator operator, String operand)
LogicCriteria	LogicCriteria.applyTransform(Operator operator) Apply a transformation operator to a logic expression

Constructors in org.openmrs.logic with parameters of type Operator

Constructor and Description
LogicTransform(Operator transformOperator)
LogicTransform(Operator transformOperator, Integer numResults)

Uses of Operator in org.openmrs.logic.op

Subinterfaces of Operator in org.openmrs.logic.op

Modifier and Type	Interface and Description
interface	ComparisonOperator Marker interface to keep track of the ComparisonOperator sub type
interface	LogicalOperator Marker for the logical operator
interface	TransformOperator Marker for all transform operator.

Classes in org.openmrs.logic.op that implement Operator

Modifier and Type	Class and Description
class	After The After operator works with a date object to tests whether an expression will yield result after a certain date position. Example: - logicService.parse("'CD4 COUNT'").after(Context.getDateformat().parse("2009/12/04"); The above will give us a criteria to check if there's "CD4 COUNT" observations after 12/04/2009
class	And The And operator is a conjunction operator to combine two or more LogicCriteria objects. Example: - logicService.parse("'CD4 COUNT'").and(logicService.parse("'WEIGHT (KG)'")); The above will give us a criteria to check if there's "CD4 COUNT" and "WEIGHT (KG)" observations
class	AsOf The AsOf operator works with a date object to test whether an expression will yield result after a certain date position Example: - logicService.parse("'CD4 COUNT'").asOf(Context.getDateformat().parse("2009/12/04"); The above will give us a criteria to check if there's "CD4 COUNT" observations as of 12/04/2009
class	Average The Average operator will calculate the average result from a collection of result returned by the logic expression Example: - logicService.parse("'CD4 COUNT'").average(); The above will give us a criteria to get the average result of the "CD4 COUNT" observations
class	Before The Before operator works with a date object to tests whether an expression will yield result before a certain date position. Example: - logicService.parse("'CD4 COUNT'").before(Context.getDateformat().parse("2009/12/04"); The above will give us a criteria to check if there's "CD4 COUNT" observations before 12/04/2009
class	Contains The Contains operator will return results that contains the operand . Example: - logicService.parse("EncounterDataSource.ENCOUNTER_KEY").contains("ADULTRETURN"); The above will give us a criteria to check if there's encounter ADULTRETURN for a certain patients
class	Count The Count operator will return the number of results returned by the logic service Example: - logicService.parse("EncounterDataSource.ENCOUNTER_KEY").count(); The above will give us a criteria to get the number of encounter type we have in the system
class	Distinct The Distinct operator will filter out duplicate results and return a set of distinct results. Example: - logicService.parse("EncounterDataSource.ENCOUNTER_KEY").distinct(); The above will give us a criteria to get all distinct encounter type from the system
class	Equals The Equals operator will test whether a result equals to an operand or not. Example: - logicService.parse("EncounterDataSource.ENCOUNTER_KEY").equals("ADULTRETURN"); The above will give us a criteria to get only ADULTRETURN encounters
class	Exists The Exists operator test whether a criteria will exist for person or not. Example: - logicService.parse("EncounterDataSource.ENCOUNTER_KEY").equals("ADULTRETURN").exists(); The above will give us a criteria to test whether ADULTRETURN encounter exists or not
class	First The First operator will return a subset result of the entire result returned by the criteria Example: - logicService.parse("'CD4 COUNT'").first(2); The above will give us a criteria to get the first two "CD4 COUNT" observations
class	GreaterThan The GreaterThan operator will return result that have a greater value than the operand. Example: - logicService.parse("'CD4 COUNT'").gt(200); The above will give us a criteria to get the "CD4 COUNT" observations that has the value numeric more than 200
class	GreaterThanEquals The GreaterThanEquals operator will return result that have a greater value than or equals to the operand. Example: - logicService.parse("'CD4 COUNT'").gte(200); The above will give us a criteria to get the "CD4 COUNT" observations that has the value numeric more than or equals to 200
class	In The In operator test whether a value is in a collection of value or not. Example: Collection answers = Collection.asList("ADULTRETURN"); logicService.parseString(EncounterDataSource.ENCOUNTER_KEY).in(typeNames); The above criteria will test whether a patient have EncounterType in the list
class	Last The Last operator will return a subset result of the entire result returned by the criteria. Example: - logicService.parse("'CD4 COUNT'").last(2); The above will give us a criteria to get the last two "CD4 COUNT" observations
class	LessThan The LessThan operator will return result that have a less value than the operand. Example: - logicService.parse("'CD4 COUNT'").gte(200); The above will give us a criteria to get the "CD4 COUNT" observations that has the value numeric less than 200
class	LessThanEquals The LessThan operator will return result that have a less value than or equals to the operand. Example: - logicService.parse("'CD4 COUNT'").lte(200); The above will give us a criteria to get the "CD4 COUNT" observations that has the value numeric less than or equals to 200
class	Not The Not operator will negate the a logic expression
class	NotExists The NotExists operator test whether a criteria will exist for person or not. Example: - logicService.parse("EncounterDataSource.ENCOUNTER_KEY").equals("ADULTRETURN").notExists(); The above will give us a criteria to test whether ADULTRETURN encounter exists or not
class	Or The Or operator is a disjunction operator to combine two or more LogicCriteria objects. Example: - logicService.parse("'CD4 COUNT'").or(logicService.parse("'WEIGHT (KG)'")); The above will give us a criteria to check if there's "CD4 COUNT" or "WEIGHT (KG)" observations
class	Within The Within operator tests whether an expression will yield true for a certain time frame. Example: - logicService.parse("'CD4 COUNT'").within(Duration.years(2)); The above will give us a criteria to check if there's "CD4 COUNT" observations within the last 2 years

Fields in org.openmrs.logic.op declared as Operator

Modifier and Type	Field and Description
static Operator	Operator.AFTER
static Operator	Operator.AND
static Operator	Operator.ASOF
static Operator	Operator.AVERAGE
static Operator	Operator.BEFORE
static Operator	Operator.CONTAINS
static Operator	Operator.COUNT
static Operator	Operator.DISTINCT
static Operator	Operator.EQUALS
static Operator	Operator.EXISTS
static Operator	Operator.FIRST
static Operator	Operator.GT
static Operator	Operator.GTE
static Operator	Operator.IN
static Operator	Operator.LAST
static Operator	Operator.LT
static Operator	Operator.LTE
static Operator	Operator.NOT
static Operator	Operator.NOT_EXISTS
static Operator	Operator.OR
static Operator	Operator.WITHIN