java.lang.Object
- java.lang.Enum<FilterOperator>
- - org.hl7.fhir.r4.model.codesystems.FilterOperator

All Implemented Interfaces:

Serializable, Comparable<FilterOperator>
```
public enum FilterOperator
extends Enum<FilterOperator>
```

Enum Constant Summary

Enum Constants
Enum Constant	Description
`DESCENDENTOF`	Includes all concept ids that have a transitive is-a relationship with the concept Id provided as the value, excluding the provided concept itself i.e.
`EQUAL`	The specified property of the code equals the provided value.
`EXISTS`	The specified property of the code has at least one value (if the specified value is true; if the specified value is false, then matches when the specified property of the code has no values).
`GENERALIZES`	Includes all concept ids that have a transitive is-a relationship from the concept Id provided as the value, including the provided concept itself (i.e.
`IN`	The specified property of the code is in the set of codes or concepts specified in the provided value (comma separated list).
`ISA`	Includes all concept ids that have a transitive is-a relationship with the concept Id provided as the value, including the provided concept itself (include descendant codes and self).
`ISNOTA`	The specified property of the code does not have an is-a relationship with the provided value.
`NOTIN`	The specified property of the code is not in the set of codes or concepts specified in the provided value (comma separated list).
`NULL`	added to help the parsers
`REGEX`	The specified property of the code matches the regex specified in the provided value.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static FilterOperator`	`fromCode(String codeString)`
`String`	`getDefinition()`
`String`	`getDisplay()`
`String`	`getSystem()`
`String`	`toCode()`
`static FilterOperator`	`valueOf(String name)`	Returns the enum constant of this type with the specified name.
`static FilterOperator[]`	`values()`	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Enum Constant Detail
  - EQUAL
```
public static final FilterOperator EQUAL
```
    The specified property of the code equals the provided value.
  - ISA
```
public static final FilterOperator ISA
```
    Includes all concept ids that have a transitive is-a relationship with the concept Id provided as the value, including the provided concept itself (include descendant codes and self).
  - DESCENDENTOF
```
public static final FilterOperator DESCENDENTOF
```
    Includes all concept ids that have a transitive is-a relationship with the concept Id provided as the value, excluding the provided concept itself i.e. include descendant codes only).
  - ISNOTA
```
public static final FilterOperator ISNOTA
```
    The specified property of the code does not have an is-a relationship with the provided value.
  - REGEX
```
public static final FilterOperator REGEX
```
    The specified property of the code matches the regex specified in the provided value.
  - IN
```
public static final FilterOperator IN
```
    The specified property of the code is in the set of codes or concepts specified in the provided value (comma separated list).
  - NOTIN
```
public static final FilterOperator NOTIN
```
    The specified property of the code is not in the set of codes or concepts specified in the provided value (comma separated list).
  - GENERALIZES
```
public static final FilterOperator GENERALIZES
```
    Includes all concept ids that have a transitive is-a relationship from the concept Id provided as the value, including the provided concept itself (i.e. include ancestor codes and self).
  - EXISTS
```
public static final FilterOperator EXISTS
```
    The specified property of the code has at least one value (if the specified value is true; if the specified value is false, then matches when the specified property of the code has no values).
  - NULL
```
public static final FilterOperator NULL
```
    added to help the parsers
- Method Detail
  - values
```
public static FilterOperator[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
    for (FilterOperator c : FilterOperator.values()) System.out.println(c);
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static FilterOperator valueOf(String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    
    name - the name of the enum constant to be returned.
    
    Returns:
    
    the enum constant with the specified name
    
    Throws:
    
    IllegalArgumentException - if this enum type has no constant with the specified name
    
    NullPointerException - if the argument is null
  - fromCode
```
public static FilterOperator fromCode(String codeString)
                               throws org.hl7.fhir.exceptions.FHIRException
```
    Throws:
    
    org.hl7.fhir.exceptions.FHIRException
  - toCode
```
public String toCode()
```
  - getSystem
```
public String getSystem()
```
  - getDefinition
```
public String getDefinition()
```
  - getDisplay
```
public String getDisplay()
```

Enum FilterOperator

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

EQUAL

ISA

DESCENDENTOF

ISNOTA

REGEX

IN

NOTIN

GENERALIZES

EXISTS

NULL

Method Detail

values

valueOf

fromCode

toCode

getSystem

getDefinition

getDisplay