java.lang.Object
- ca.uhn.fhir.rest.api.Constants

```
public class Constants
extends Object
```

Field Summary

Fields
Modifier and Type	Field	Description
`static String`	`CACHE_CONTROL_MAX_RESULTS`
`static String`	`CACHE_CONTROL_NO_CACHE`
`static String`	`CACHE_CONTROL_NO_STORE`
`static String`	`CACHE_CONTROL_PRIVATE`
`static String`	`CAPABILITYSTATEMENT_WEBSOCKET_URL`
`static String`	`CASCADE_DELETE`
`static String`	`CHARSET_NAME_UTF8`
`static Charset`	`CHARSET_US_ASCII`
`static Charset`	`CHARSET_UTF8`
`static String`	`CHARSET_UTF8_CTSUFFIX`
`static String`	`CODESYSTEM_VALIDATE_NOT_NEEDED`
`static Set<String>`	`CORS_ALLOWED_HEADERS`	Contains a standard set of headers which are used by FHIR / HAPI FHIR, and therefore would make a useful set for CORS AllowedHeader declarations
`static Set<String>`	`CORS_ALLWED_METHODS`	Contains a standard set of HTTP Methods which are used by FHIR / HAPI FHIR, and therefore would make a useful set for CORS AllowedMethod declarations
`static String`	`CT_APP_NDJSON`
`static String`	`CT_FHIR_JSON`
`static String`	`CT_FHIR_JSON_NEW`	The FHIR MimeType for JSON encoding in FHIR DSTU3+
`static String`	`CT_FHIR_NDJSON`
`static String`	`CT_FHIR_XML`
`static String`	`CT_FHIR_XML_NEW`	The FHIR MimeType for XML encoding in FHIR DSTU3+
`static String`	`CT_HTML`
`static String`	`CT_HTML_WITH_UTF8`
`static String`	`CT_JSON`
`static String`	`CT_JSON_PATCH`
`static String`	`CT_NDJSON`
`static String`	`CT_OCTET_STREAM`
`static String`	`CT_RDF_TURTLE`
`static String`	`CT_TEXT`
`static String`	`CT_TEXT_CSV`
`static String`	`CT_TEXT_WITH_UTF8`
`static String`	`CT_X_FORM_URLENCODED`
`static String`	`CT_XML`
`static String`	`CT_XML_PATCH`
`static Set<String>`	`CTS_NDJSON`
`static String`	`ENCODING_GZIP`
`static String`	`EXT_META_SOURCE`	This extension represents the equivalent of the `Resource.meta.source` field within R4+ resources, and is for use in DSTU3 resources.
`static String`	`EXTOP_PROCESS_MESSAGE`
`static String`	`EXTOP_VALIDATE`
`static String`	`EXTOP_VALIDATE_MODE`
`static String`	`EXTOP_VALIDATE_PROFILE`
`static String`	`EXTOP_VALIDATE_RESOURCE`
`static String`	`FORMAT_HTML`
`static String`	`FORMAT_JSON`
`static String`	`FORMAT_TURTLE`
`static String`	`FORMAT_XML`
`static Set<String>`	`FORMATS_HTML`	"text/html" and "html"
`static String`	`FORMATS_HTML_JSON`
`static String`	`FORMATS_HTML_XML`
`static String`	`HEADER_ACCEPT`
`static String`	`HEADER_ACCEPT_ENCODING`
`static String`	`HEADER_ACCEPT_VALUE_JSON_NON_LEGACY`
`static String`	`HEADER_ACCEPT_VALUE_XML_NON_LEGACY`
`static String`	`HEADER_ACCEPT_VALUE_XML_OR_JSON_LEGACY`
`static String`	`HEADER_ACCEPT_VALUE_XML_OR_JSON_NON_LEGACY`
`static String`	`HEADER_ALLOW`
`static String`	`HEADER_AUTHORIZATION`
`static String`	`HEADER_AUTHORIZATION_VALPREFIX_BASIC`
`static String`	`HEADER_AUTHORIZATION_VALPREFIX_BEARER`
`static String`	`HEADER_CACHE_CONTROL`
`static String`	`HEADER_CASCADE`
`static String`	`HEADER_CONTENT_DISPOSITION`
`static String`	`HEADER_CONTENT_ENCODING`
`static String`	`HEADER_CONTENT_LOCATION`
`static String`	`HEADER_CONTENT_LOCATION_LC`
`static String`	`HEADER_CONTENT_TYPE`
`static String`	`HEADER_CONTENT_TYPE_LC`
`static String`	`HEADER_COOKIE`
`static String`	`HEADER_CORS_ALLOW_METHODS`
`static String`	`HEADER_CORS_ALLOW_ORIGIN`
`static String`	`HEADER_CORS_EXPOSE_HEADERS`
`static String`	`HEADER_ETAG`
`static String`	`HEADER_ETAG_LC`
`static String`	`HEADER_IF_MATCH`
`static String`	`HEADER_IF_MATCH_LC`
`static String`	`HEADER_IF_MODIFIED_SINCE`
`static String`	`HEADER_IF_MODIFIED_SINCE_LC`
`static String`	`HEADER_IF_NONE_EXIST`
`static String`	`HEADER_IF_NONE_EXIST_LC`
`static String`	`HEADER_IF_NONE_MATCH`
`static String`	`HEADER_IF_NONE_MATCH_LC`
`static String`	`HEADER_LAST_MODIFIED`
`static String`	`HEADER_LAST_MODIFIED_LOWERCASE`
`static String`	`HEADER_LOCATION`
`static String`	`HEADER_LOCATION_LC`
`static String`	`HEADER_ORIGIN`
`static String`	`HEADER_PREFER`
`static String`	`HEADER_PREFER_RESPOND_ASYNC`
`static String`	`HEADER_PREFER_RETURN`
`static String`	`HEADER_PREFER_RETURN_MINIMAL`
`static String`	`HEADER_PREFER_RETURN_OPERATION_OUTCOME`
`static String`	`HEADER_PREFER_RETURN_REPRESENTATION`
`static String`	`HEADER_REQUEST_ID`
`static String`	`HEADER_REQUEST_SOURCE`
`static String`	`HEADER_RETRY_AFTER`
`static String`	`HEADER_SUFFIX_CT_UTF_8`
`static String`	`HEADER_X_CACHE`
`static String`	`HEADER_X_PROGRESS`
`static String`	`HEADER_X_SECURITY_CONTEXT`
`static String`	`HEADERVALUE_CORS_ALLOW_METHODS_ALL`
`static Map<Integer,String>`	`HTTP_STATUS_NAMES`
`static String`	`LINK_FHIR_BASE`
`static String`	`LINK_FIRST`
`static String`	`LINK_LAST`
`static String`	`LINK_NEXT`
`static String`	`LINK_PREVIOUS`
`static String`	`LINK_SELF`
`static int`	`MAX_RESOURCE_NAME_LENGTH`
`static String`	`OO_INFOSTATUS_PROCESSING`
`static String`	`OPENSEARCH_NS_OLDER`
`static String`	`OPERATION_LASTN`	Operation name for the $lastn operation
`static String`	`OPERATION_NAME_GRAPHQL`
`static String`	`PARAM_ASYNC`
`static String`	`PARAM_AT`
`static String`	`PARAM_BUNDLETYPE`	Used in paging links
`static String`	`PARAM_CONTENT`
`static String`	`PARAM_COUNT`
`static String`	`PARAM_DELETE`
`static String`	`PARAM_ELEMENTS`
`static String`	`PARAM_ELEMENTS_EXCLUDE_MODIFIER`
`static String`	`PARAM_FILTER`
`static String`	`PARAM_FORMAT`
`static String`	`PARAM_GRAPHQL_QUERY`
`static String`	`PARAM_HAS`
`static String`	`PARAM_HISTORY`
`static String`	`PARAM_INCLUDE`
`static String`	`PARAM_INCLUDE_ITERATE`
`static String`	`PARAM_INCLUDE_QUALIFIER_ITERATE`
`static String`	`PARAM_INCLUDE_QUALIFIER_RECURSE`
`static String`	`PARAM_INCLUDE_RECURSE`
`static String`	`PARAM_LASTUPDATED`
`static String`	`PARAM_NARRATIVE`
`static String`	`PARAM_PAGEID`
`static String`	`PARAM_PAGINGACTION`
`static String`	`PARAM_PAGINGOFFSET`
`static String`	`PARAM_PRETTY`
`static String`	`PARAM_PRETTY_VALUE_FALSE`
`static String`	`PARAM_PRETTY_VALUE_TRUE`
`static String`	`PARAM_PROFILE`
`static String`	`PARAM_QUERY`
`static String`	`PARAM_RESPONSE_URL`
`static String`	`PARAM_REVINCLUDE`
`static String`	`PARAM_REVINCLUDE_ITERATE`
`static String`	`PARAM_REVINCLUDE_RECURSE`
`static String`	`PARAM_SEARCH`
`static String`	`PARAM_SEARCH_TOTAL_MODE`
`static String`	`PARAM_SECURITY`
`static String`	`PARAM_SINCE`
`static String`	`PARAM_SORT`
`static String`	`PARAM_SORT_ASC`
`static String`	`PARAM_SORT_DESC`
`static String`	`PARAM_SOURCE`
`static String`	`PARAM_SUMMARY`
`static String`	`PARAM_TAG`
`static String`	`PARAM_TAGS`
`static String`	`PARAM_TEXT`
`static String`	`PARAM_VALIDATE`
`static String`	`PARAMETER_CASCADE_DELETE`
`static String`	`PARAMQUALIFIER_MISSING`
`static String`	`PARAMQUALIFIER_MISSING_FALSE`
`static String`	`PARAMQUALIFIER_MISSING_TRUE`
`static String`	`PARAMQUALIFIER_STRING_CONTAINS`
`static String`	`PARAMQUALIFIER_STRING_EXACT`
`static String`	`PARAMQUALIFIER_TOKEN_TEXT`
`static String`	`POWERED_BY_HEADER`
`static int`	`REQUEST_ID_LENGTH`	Note that this constant is used in a number of places including DB column lengths! Be careful if you decide to change it.
`static int`	`STATUS_HTTP_200_OK`
`static int`	`STATUS_HTTP_201_CREATED`
`static int`	`STATUS_HTTP_202_ACCEPTED`
`static int`	`STATUS_HTTP_204_NO_CONTENT`
`static int`	`STATUS_HTTP_304_NOT_MODIFIED`
`static int`	`STATUS_HTTP_400_BAD_REQUEST`
`static int`	`STATUS_HTTP_401_CLIENT_UNAUTHORIZED`
`static int`	`STATUS_HTTP_403_FORBIDDEN`
`static int`	`STATUS_HTTP_404_NOT_FOUND`
`static int`	`STATUS_HTTP_405_METHOD_NOT_ALLOWED`
`static int`	`STATUS_HTTP_409_CONFLICT`
`static int`	`STATUS_HTTP_410_GONE`
`static int`	`STATUS_HTTP_412_PAYLOAD_TOO_LARGE`
`static int`	`STATUS_HTTP_412_PRECONDITION_FAILED`
`static int`	`STATUS_HTTP_422_UNPROCESSABLE_ENTITY`
`static int`	`STATUS_HTTP_500_INTERNAL_ERROR`
`static int`	`STATUS_HTTP_501_NOT_IMPLEMENTED`
`static String`	`TAG_SUBSETTED_CODE`
`static String`	`TAG_SUBSETTED_SYSTEM_DSTU3`
`static String`	`TAG_SUBSETTED_SYSTEM_R4`
`static String`	`TEST_SYSTEM_PROP_VALIDATION_RESOURCE_CACHES_MS`	This is provided for testing only! Use with caution as this property may change.
`static String`	`URL_TOKEN_HISTORY`
`static String`	`URL_TOKEN_METADATA`

Constructor Summary

Constructors
Constructor Description

Constants()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static boolean`	`codeSystemNotNeeded(String theCodeSystem)`
`static String`	`codeSystemWithDefaultDescription(String theSystem)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - CT_TEXT_CSV
```
public static final String CT_TEXT_CSV
```
    See Also:
    
    Constant Field Values
  - HEADER_REQUEST_ID
```
public static final String HEADER_REQUEST_ID
```
    See Also:
    
    Constant Field Values
  - HEADER_REQUEST_SOURCE
```
public static final String HEADER_REQUEST_SOURCE
```
    See Also:
    
    Constant Field Values
  - CACHE_CONTROL_MAX_RESULTS
```
public static final String CACHE_CONTROL_MAX_RESULTS
```
    See Also:
    
    Constant Field Values
  - CACHE_CONTROL_NO_CACHE
```
public static final String CACHE_CONTROL_NO_CACHE
```
    See Also:
    
    Constant Field Values
  - CACHE_CONTROL_NO_STORE
```
public static final String CACHE_CONTROL_NO_STORE
```
    See Also:
    
    Constant Field Values
  - CHARSET_NAME_UTF8
```
public static final String CHARSET_NAME_UTF8
```
    See Also:
    
    Constant Field Values
  - CHARSET_UTF8
```
public static final Charset CHARSET_UTF8
```
  - CHARSET_UTF8_CTSUFFIX
```
public static final String CHARSET_UTF8_CTSUFFIX
```
    See Also:
    
    Constant Field Values
  - CORS_ALLOWED_HEADERS
```
public static final Set<String> CORS_ALLOWED_HEADERS
```
    Contains a standard set of headers which are used by FHIR / HAPI FHIR, and therefore would make a useful set for CORS AllowedHeader declarations
  - CORS_ALLWED_METHODS
```
public static final Set<String> CORS_ALLWED_METHODS
```
    Contains a standard set of HTTP Methods which are used by FHIR / HAPI FHIR, and therefore would make a useful set for CORS AllowedMethod declarations
  - CT_FHIR_JSON
```
public static final String CT_FHIR_JSON
```
    See Also:
    
    Constant Field Values
  - CT_RDF_TURTLE
```
public static final String CT_RDF_TURTLE
```
    See Also:
    
    Constant Field Values
  - CT_FHIR_JSON_NEW
```
public static final String CT_FHIR_JSON_NEW
```
    The FHIR MimeType for JSON encoding in FHIR DSTU3+
    
    See Also:
    
    Constant Field Values
  - CT_FHIR_XML
```
public static final String CT_FHIR_XML
```
    See Also:
    
    Constant Field Values
  - CT_FHIR_XML_NEW
```
public static final String CT_FHIR_XML_NEW
```
    The FHIR MimeType for XML encoding in FHIR DSTU3+
    
    See Also:
    
    Constant Field Values
  - CT_HTML
```
public static final String CT_HTML
```
    See Also:
    
    Constant Field Values
  - CT_HTML_WITH_UTF8
```
public static final String CT_HTML_WITH_UTF8
```
    See Also:
    
    Constant Field Values
  - CT_JSON
```
public static final String CT_JSON
```
    See Also:
    
    Constant Field Values
  - CT_JSON_PATCH
```
public static final String CT_JSON_PATCH
```
    See Also:
    
    Constant Field Values
  - CT_OCTET_STREAM
```
public static final String CT_OCTET_STREAM
```
    See Also:
    
    Constant Field Values
  - CT_TEXT
```
public static final String CT_TEXT
```
    See Also:
    
    Constant Field Values
  - CT_TEXT_WITH_UTF8
```
public static final String CT_TEXT_WITH_UTF8
```
    See Also:
    
    Constant Field Values
  - CT_X_FORM_URLENCODED
```
public static final String CT_X_FORM_URLENCODED
```
    See Also:
    
    Constant Field Values
  - CT_XML
```
public static final String CT_XML
```
    See Also:
    
    Constant Field Values
  - CT_XML_PATCH
```
public static final String CT_XML_PATCH
```
    See Also:
    
    Constant Field Values
  - ENCODING_GZIP
```
public static final String ENCODING_GZIP
```
    See Also:
    
    Constant Field Values
  - EXTOP_PROCESS_MESSAGE
```
public static final String EXTOP_PROCESS_MESSAGE
```
    See Also:
    
    Constant Field Values
  - EXTOP_VALIDATE
```
public static final String EXTOP_VALIDATE
```
    See Also:
    
    Constant Field Values
  - EXTOP_VALIDATE_MODE
```
public static final String EXTOP_VALIDATE_MODE
```
    See Also:
    
    Constant Field Values
  - EXTOP_VALIDATE_PROFILE
```
public static final String EXTOP_VALIDATE_PROFILE
```
    See Also:
    
    Constant Field Values
  - EXTOP_VALIDATE_RESOURCE
```
public static final String EXTOP_VALIDATE_RESOURCE
```
    See Also:
    
    Constant Field Values
  - FORMAT_HTML
```
public static final String FORMAT_HTML
```
    See Also:
    
    Constant Field Values
  - FORMAT_JSON
```
public static final String FORMAT_JSON
```
    See Also:
    
    Constant Field Values
  - FORMAT_XML
```
public static final String FORMAT_XML
```
    See Also:
    
    Constant Field Values
  - FORMAT_TURTLE
```
public static final String FORMAT_TURTLE
```
    See Also:
    
    Constant Field Values
  - FORMATS_HTML
```
public static final Set<String> FORMATS_HTML
```
    "text/html" and "html"
  - FORMATS_HTML_JSON
```
public static final String FORMATS_HTML_JSON
```
    See Also:
    
    Constant Field Values
  - FORMATS_HTML_XML
```
public static final String FORMATS_HTML_XML
```
    See Also:
    
    Constant Field Values
  - HEADER_ACCEPT
```
public static final String HEADER_ACCEPT
```
    See Also:
    
    Constant Field Values
  - HEADER_ACCEPT_ENCODING
```
public static final String HEADER_ACCEPT_ENCODING
```
    See Also:
    
    Constant Field Values
  - HEADER_ACCEPT_VALUE_JSON_NON_LEGACY
```
public static final String HEADER_ACCEPT_VALUE_JSON_NON_LEGACY
```
    See Also:
    
    Constant Field Values
  - HEADER_ACCEPT_VALUE_XML_NON_LEGACY
```
public static final String HEADER_ACCEPT_VALUE_XML_NON_LEGACY
```
    See Also:
    
    Constant Field Values
  - HEADER_ACCEPT_VALUE_XML_OR_JSON_LEGACY
```
public static final String HEADER_ACCEPT_VALUE_XML_OR_JSON_LEGACY
```
    See Also:
    
    Constant Field Values
  - HEADER_ACCEPT_VALUE_XML_OR_JSON_NON_LEGACY
```
public static final String HEADER_ACCEPT_VALUE_XML_OR_JSON_NON_LEGACY
```
  - HEADER_ALLOW
```
public static final String HEADER_ALLOW
```
    See Also:
    
    Constant Field Values
  - HEADER_AUTHORIZATION
```
public static final String HEADER_AUTHORIZATION
```
    See Also:
    
    Constant Field Values
  - HEADER_AUTHORIZATION_VALPREFIX_BASIC
```
public static final String HEADER_AUTHORIZATION_VALPREFIX_BASIC
```
    See Also:
    
    Constant Field Values
  - HEADER_AUTHORIZATION_VALPREFIX_BEARER
```
public static final String HEADER_AUTHORIZATION_VALPREFIX_BEARER
```
    See Also:
    
    Constant Field Values
  - HEADER_CACHE_CONTROL
```
public static final String HEADER_CACHE_CONTROL
```
    See Also:
    
    Constant Field Values
  - HEADER_CONTENT_DISPOSITION
```
public static final String HEADER_CONTENT_DISPOSITION
```
    See Also:
    
    Constant Field Values
  - HEADER_CONTENT_ENCODING
```
public static final String HEADER_CONTENT_ENCODING
```
    See Also:
    
    Constant Field Values
  - HEADER_CONTENT_LOCATION
```
public static final String HEADER_CONTENT_LOCATION
```
    See Also:
    
    Constant Field Values
  - HEADER_CONTENT_LOCATION_LC
```
public static final String HEADER_CONTENT_LOCATION_LC
```
  - HEADER_CONTENT_TYPE
```
public static final String HEADER_CONTENT_TYPE
```
    See Also:
    
    Constant Field Values
  - HEADER_CONTENT_TYPE_LC
```
public static final String HEADER_CONTENT_TYPE_LC
```
  - HEADER_COOKIE
```
public static final String HEADER_COOKIE
```
    See Also:
    
    Constant Field Values
  - HEADER_CORS_ALLOW_METHODS
```
public static final String HEADER_CORS_ALLOW_METHODS
```
    See Also:
    
    Constant Field Values
  - HEADER_CORS_ALLOW_ORIGIN
```
public static final String HEADER_CORS_ALLOW_ORIGIN
```
    See Also:
    
    Constant Field Values
  - HEADER_CORS_EXPOSE_HEADERS
```
public static final String HEADER_CORS_EXPOSE_HEADERS
```
    See Also:
    
    Constant Field Values
  - HEADER_ETAG
```
public static final String HEADER_ETAG
```
    See Also:
    
    Constant Field Values
  - HEADER_ETAG_LC
```
public static final String HEADER_ETAG_LC
```
  - HEADER_IF_MATCH
```
public static final String HEADER_IF_MATCH
```
    See Also:
    
    Constant Field Values
  - HEADER_IF_MATCH_LC
```
public static final String HEADER_IF_MATCH_LC
```
  - HEADER_IF_MODIFIED_SINCE
```
public static final String HEADER_IF_MODIFIED_SINCE
```
    See Also:
    
    Constant Field Values
  - HEADER_IF_MODIFIED_SINCE_LC
```
public static final String HEADER_IF_MODIFIED_SINCE_LC
```
  - HEADER_IF_NONE_EXIST
```
public static final String HEADER_IF_NONE_EXIST
```
    See Also:
    
    Constant Field Values
  - HEADER_IF_NONE_EXIST_LC
```
public static final String HEADER_IF_NONE_EXIST_LC
```
  - HEADER_IF_NONE_MATCH
```
public static final String HEADER_IF_NONE_MATCH
```
    See Also:
    
    Constant Field Values
  - HEADER_IF_NONE_MATCH_LC
```
public static final String HEADER_IF_NONE_MATCH_LC
```
  - HEADER_LAST_MODIFIED
```
public static final String HEADER_LAST_MODIFIED
```
    See Also:
    
    Constant Field Values
  - HEADER_LAST_MODIFIED_LOWERCASE
```
public static final String HEADER_LAST_MODIFIED_LOWERCASE
```
  - HEADER_LOCATION
```
public static final String HEADER_LOCATION
```
    See Also:
    
    Constant Field Values
  - HEADER_LOCATION_LC
```
public static final String HEADER_LOCATION_LC
```
  - HEADER_ORIGIN
```
public static final String HEADER_ORIGIN
```
    See Also:
    
    Constant Field Values
  - HEADER_PREFER
```
public static final String HEADER_PREFER
```
    See Also:
    
    Constant Field Values
  - HEADER_PREFER_RETURN
```
public static final String HEADER_PREFER_RETURN
```
    See Also:
    
    Constant Field Values
  - HEADER_PREFER_RETURN_MINIMAL
```
public static final String HEADER_PREFER_RETURN_MINIMAL
```
    See Also:
    
    Constant Field Values
  - HEADER_PREFER_RETURN_REPRESENTATION
```
public static final String HEADER_PREFER_RETURN_REPRESENTATION
```
    See Also:
    
    Constant Field Values
  - HEADER_PREFER_RETURN_OPERATION_OUTCOME
```
public static final String HEADER_PREFER_RETURN_OPERATION_OUTCOME
```
    See Also:
    
    Constant Field Values
  - HEADER_SUFFIX_CT_UTF_8
```
public static final String HEADER_SUFFIX_CT_UTF_8
```
    See Also:
    
    Constant Field Values
  - HEADERVALUE_CORS_ALLOW_METHODS_ALL
```
public static final String HEADERVALUE_CORS_ALLOW_METHODS_ALL
```
    See Also:
    
    Constant Field Values
  - HTTP_STATUS_NAMES
```
public static final Map<Integer,String> HTTP_STATUS_NAMES
```
  - LINK_FHIR_BASE
```
public static final String LINK_FHIR_BASE
```
    See Also:
    
    Constant Field Values
  - LINK_FIRST
```
public static final String LINK_FIRST
```
    See Also:
    
    Constant Field Values
  - LINK_LAST
```
public static final String LINK_LAST
```
    See Also:
    
    Constant Field Values
  - LINK_NEXT
```
public static final String LINK_NEXT
```
    See Also:
    
    Constant Field Values
  - LINK_PREVIOUS
```
public static final String LINK_PREVIOUS
```
    See Also:
    
    Constant Field Values
  - LINK_SELF
```
public static final String LINK_SELF
```
    See Also:
    
    Constant Field Values
  - OPENSEARCH_NS_OLDER
```
public static final String OPENSEARCH_NS_OLDER
```
    See Also:
    
    Constant Field Values
  - PARAM_ASYNC
```
public static final String PARAM_ASYNC
```
    See Also:
    
    Constant Field Values
  - PARAM_AT
```
public static final String PARAM_AT
```
    See Also:
    
    Constant Field Values
  - PARAM_BUNDLETYPE
```
public static final String PARAM_BUNDLETYPE
```
    Used in paging links
    
    See Also:
    
    Constant Field Values
  - PARAM_FILTER
```
public static final String PARAM_FILTER
```
    See Also:
    
    Constant Field Values
  - PARAM_CONTENT
```
public static final String PARAM_CONTENT
```
    See Also:
    
    Constant Field Values
  - PARAM_COUNT
```
public static final String PARAM_COUNT
```
    See Also:
    
    Constant Field Values
  - PARAM_DELETE
```
public static final String PARAM_DELETE
```
    See Also:
    
    Constant Field Values
  - PARAM_ELEMENTS
```
public static final String PARAM_ELEMENTS
```
    See Also:
    
    Constant Field Values
  - PARAM_ELEMENTS_EXCLUDE_MODIFIER
```
public static final String PARAM_ELEMENTS_EXCLUDE_MODIFIER
```
    See Also:
    
    Constant Field Values
  - PARAM_FORMAT
```
public static final String PARAM_FORMAT
```
    See Also:
    
    Constant Field Values
  - PARAM_HAS
```
public static final String PARAM_HAS
```
    See Also:
    
    Constant Field Values
  - PARAM_HISTORY
```
public static final String PARAM_HISTORY
```
    See Also:
    
    Constant Field Values
  - PARAM_INCLUDE
```
public static final String PARAM_INCLUDE
```
    See Also:
    
    Constant Field Values
  - PARAM_INCLUDE_QUALIFIER_RECURSE
```
public static final String PARAM_INCLUDE_QUALIFIER_RECURSE
```
    See Also:
    
    Constant Field Values
  - PARAM_INCLUDE_RECURSE
```
public static final String PARAM_INCLUDE_RECURSE
```
    See Also:
    
    Constant Field Values
  - PARAM_INCLUDE_QUALIFIER_ITERATE
```
public static final String PARAM_INCLUDE_QUALIFIER_ITERATE
```
    See Also:
    
    Constant Field Values
  - PARAM_INCLUDE_ITERATE
```
public static final String PARAM_INCLUDE_ITERATE
```
    See Also:
    
    Constant Field Values
  - PARAM_LASTUPDATED
```
public static final String PARAM_LASTUPDATED
```
    See Also:
    
    Constant Field Values
  - PARAM_NARRATIVE
```
public static final String PARAM_NARRATIVE
```
    See Also:
    
    Constant Field Values
  - PARAM_PAGINGACTION
```
public static final String PARAM_PAGINGACTION
```
    See Also:
    
    Constant Field Values
  - PARAM_PAGINGOFFSET
```
public static final String PARAM_PAGINGOFFSET
```
    See Also:
    
    Constant Field Values
  - PARAM_PRETTY
```
public static final String PARAM_PRETTY
```
    See Also:
    
    Constant Field Values
  - PARAM_PRETTY_VALUE_FALSE
```
public static final String PARAM_PRETTY_VALUE_FALSE
```
    See Also:
    
    Constant Field Values
  - PARAM_PRETTY_VALUE_TRUE
```
public static final String PARAM_PRETTY_VALUE_TRUE
```
    See Also:
    
    Constant Field Values
  - PARAM_PROFILE
```
public static final String PARAM_PROFILE
```
    See Also:
    
    Constant Field Values
  - PARAM_QUERY
```
public static final String PARAM_QUERY
```
    See Also:
    
    Constant Field Values
  - PARAM_RESPONSE_URL
```
public static final String PARAM_RESPONSE_URL
```
    See Also:
    
    Constant Field Values
  - PARAM_REVINCLUDE
```
public static final String PARAM_REVINCLUDE
```
    See Also:
    
    Constant Field Values
  - PARAM_REVINCLUDE_RECURSE
```
public static final String PARAM_REVINCLUDE_RECURSE
```
    See Also:
    
    Constant Field Values
  - PARAM_REVINCLUDE_ITERATE
```
public static final String PARAM_REVINCLUDE_ITERATE
```
    See Also:
    
    Constant Field Values
  - PARAM_SEARCH
```
public static final String PARAM_SEARCH
```
    See Also:
    
    Constant Field Values
  - PARAM_SECURITY
```
public static final String PARAM_SECURITY
```
    See Also:
    
    Constant Field Values
  - PARAM_SINCE
```
public static final String PARAM_SINCE
```
    See Also:
    
    Constant Field Values
  - PARAM_SORT
```
public static final String PARAM_SORT
```
    See Also:
    
    Constant Field Values
  - PARAM_SORT_ASC
```
public static final String PARAM_SORT_ASC
```
    See Also:
    
    Constant Field Values
  - PARAM_SORT_DESC
```
public static final String PARAM_SORT_DESC
```
    See Also:
    
    Constant Field Values
  - PARAM_SOURCE
```
public static final String PARAM_SOURCE
```
    See Also:
    
    Constant Field Values
  - PARAM_SUMMARY
```
public static final String PARAM_SUMMARY
```
    See Also:
    
    Constant Field Values
  - PARAM_TAG
```
public static final String PARAM_TAG
```
    See Also:
    
    Constant Field Values
  - PARAM_TAGS
```
public static final String PARAM_TAGS
```
    See Also:
    
    Constant Field Values
  - PARAM_TEXT
```
public static final String PARAM_TEXT
```
    See Also:
    
    Constant Field Values
  - PARAM_VALIDATE
```
public static final String PARAM_VALIDATE
```
    See Also:
    
    Constant Field Values
  - PARAMQUALIFIER_MISSING
```
public static final String PARAMQUALIFIER_MISSING
```
    See Also:
    
    Constant Field Values
  - PARAMQUALIFIER_MISSING_FALSE
```
public static final String PARAMQUALIFIER_MISSING_FALSE
```
    See Also:
    
    Constant Field Values
  - PARAMQUALIFIER_MISSING_TRUE
```
public static final String PARAMQUALIFIER_MISSING_TRUE
```
    See Also:
    
    Constant Field Values
  - PARAMQUALIFIER_STRING_CONTAINS
```
public static final String PARAMQUALIFIER_STRING_CONTAINS
```
    See Also:
    
    Constant Field Values
  - PARAMQUALIFIER_STRING_EXACT
```
public static final String PARAMQUALIFIER_STRING_EXACT
```
    See Also:
    
    Constant Field Values
  - PARAMQUALIFIER_TOKEN_TEXT
```
public static final String PARAMQUALIFIER_TOKEN_TEXT
```
    See Also:
    
    Constant Field Values
  - STATUS_HTTP_200_OK
```
public static final int STATUS_HTTP_200_OK
```
    See Also:
    
    Constant Field Values
  - STATUS_HTTP_201_CREATED
```
public static final int STATUS_HTTP_201_CREATED
```
    See Also:
    
    Constant Field Values
  - STATUS_HTTP_204_NO_CONTENT
```
public static final int STATUS_HTTP_204_NO_CONTENT
```
    See Also:
    
    Constant Field Values
  - STATUS_HTTP_304_NOT_MODIFIED
```
public static final int STATUS_HTTP_304_NOT_MODIFIED
```
    See Also:
    
    Constant Field Values
  - STATUS_HTTP_400_BAD_REQUEST
```
public static final int STATUS_HTTP_400_BAD_REQUEST
```
    See Also:
    
    Constant Field Values
  - STATUS_HTTP_401_CLIENT_UNAUTHORIZED
```
public static final int STATUS_HTTP_401_CLIENT_UNAUTHORIZED
```
    See Also:
    
    Constant Field Values
  - STATUS_HTTP_403_FORBIDDEN
```
public static final int STATUS_HTTP_403_FORBIDDEN
```
    See Also:
    
    Constant Field Values
  - STATUS_HTTP_404_NOT_FOUND
```
public static final int STATUS_HTTP_404_NOT_FOUND
```
    See Also:
    
    Constant Field Values
  - STATUS_HTTP_405_METHOD_NOT_ALLOWED
```
public static final int STATUS_HTTP_405_METHOD_NOT_ALLOWED
```
    See Also:
    
    Constant Field Values
  - STATUS_HTTP_409_CONFLICT
```
public static final int STATUS_HTTP_409_CONFLICT
```
    See Also:
    
    Constant Field Values
  - STATUS_HTTP_410_GONE
```
public static final int STATUS_HTTP_410_GONE
```
    See Also:
    
    Constant Field Values
  - STATUS_HTTP_412_PRECONDITION_FAILED
```
public static final int STATUS_HTTP_412_PRECONDITION_FAILED
```
    See Also:
    
    Constant Field Values
  - STATUS_HTTP_422_UNPROCESSABLE_ENTITY
```
public static final int STATUS_HTTP_422_UNPROCESSABLE_ENTITY
```
    See Also:
    
    Constant Field Values
  - STATUS_HTTP_500_INTERNAL_ERROR
```
public static final int STATUS_HTTP_500_INTERNAL_ERROR
```
    See Also:
    
    Constant Field Values
  - STATUS_HTTP_501_NOT_IMPLEMENTED
```
public static final int STATUS_HTTP_501_NOT_IMPLEMENTED
```
    See Also:
    
    Constant Field Values
  - TAG_SUBSETTED_CODE
```
public static final String TAG_SUBSETTED_CODE
```
    See Also:
    
    Constant Field Values
  - TAG_SUBSETTED_SYSTEM_DSTU3
```
public static final String TAG_SUBSETTED_SYSTEM_DSTU3
```
    See Also:
    
    Constant Field Values
  - TAG_SUBSETTED_SYSTEM_R4
```
public static final String TAG_SUBSETTED_SYSTEM_R4
```
    See Also:
    
    Constant Field Values
  - URL_TOKEN_HISTORY
```
public static final String URL_TOKEN_HISTORY
```
    See Also:
    
    Constant Field Values
  - URL_TOKEN_METADATA
```
public static final String URL_TOKEN_METADATA
```
    See Also:
    
    Constant Field Values
  - OO_INFOSTATUS_PROCESSING
```
public static final String OO_INFOSTATUS_PROCESSING
```
    See Also:
    
    Constant Field Values
  - PARAM_GRAPHQL_QUERY
```
public static final String PARAM_GRAPHQL_QUERY
```
    See Also:
    
    Constant Field Values
  - HEADER_X_CACHE
```
public static final String HEADER_X_CACHE
```
    See Also:
    
    Constant Field Values
  - HEADER_X_SECURITY_CONTEXT
```
public static final String HEADER_X_SECURITY_CONTEXT
```
    See Also:
    
    Constant Field Values
  - POWERED_BY_HEADER
```
public static final String POWERED_BY_HEADER
```
    See Also:
    
    Constant Field Values
  - CHARSET_US_ASCII
```
public static final Charset CHARSET_US_ASCII
```
  - PARAM_PAGEID
```
public static final String PARAM_PAGEID
```
    See Also:
    
    Constant Field Values
  - TEST_SYSTEM_PROP_VALIDATION_RESOURCE_CACHES_MS
```
public static final String TEST_SYSTEM_PROP_VALIDATION_RESOURCE_CACHES_MS
```
    This is provided for testing only! Use with caution as this property may change.
    
    See Also:
    
    Constant Field Values
  - PARAM_SEARCH_TOTAL_MODE
```
public static final String PARAM_SEARCH_TOTAL_MODE
```
    See Also:
    
    Constant Field Values
  - CAPABILITYSTATEMENT_WEBSOCKET_URL
```
public static final String CAPABILITYSTATEMENT_WEBSOCKET_URL
```
    See Also:
    
    Constant Field Values
  - PARAMETER_CASCADE_DELETE
```
public static final String PARAMETER_CASCADE_DELETE
```
    See Also:
    
    Constant Field Values
  - HEADER_CASCADE
```
public static final String HEADER_CASCADE
```
    See Also:
    
    Constant Field Values
  - CASCADE_DELETE
```
public static final String CASCADE_DELETE
```
    See Also:
    
    Constant Field Values
  - MAX_RESOURCE_NAME_LENGTH
```
public static final int MAX_RESOURCE_NAME_LENGTH
```
    See Also:
    
    Constant Field Values
  - CACHE_CONTROL_PRIVATE
```
public static final String CACHE_CONTROL_PRIVATE
```
    See Also:
    
    Constant Field Values
  - CT_FHIR_NDJSON
```
public static final String CT_FHIR_NDJSON
```
    See Also:
    
    Constant Field Values
  - CT_APP_NDJSON
```
public static final String CT_APP_NDJSON
```
    See Also:
    
    Constant Field Values
  - CT_NDJSON
```
public static final String CT_NDJSON
```
    See Also:
    
    Constant Field Values
  - CTS_NDJSON
```
public static final Set<String> CTS_NDJSON
```
  - HEADER_PREFER_RESPOND_ASYNC
```
public static final String HEADER_PREFER_RESPOND_ASYNC
```
    See Also:
    
    Constant Field Values
  - STATUS_HTTP_412_PAYLOAD_TOO_LARGE
```
public static final int STATUS_HTTP_412_PAYLOAD_TOO_LARGE
```
    See Also:
    
    Constant Field Values
  - OPERATION_NAME_GRAPHQL
```
public static final String OPERATION_NAME_GRAPHQL
```
    See Also:
    
    Constant Field Values
  - REQUEST_ID_LENGTH
```
public static final int REQUEST_ID_LENGTH
```
    Note that this constant is used in a number of places including DB column lengths! Be careful if you decide to change it.
    
    See Also:
    
    Constant Field Values
  - STATUS_HTTP_202_ACCEPTED
```
public static final int STATUS_HTTP_202_ACCEPTED
```
    See Also:
    
    Constant Field Values
  - HEADER_X_PROGRESS
```
public static final String HEADER_X_PROGRESS
```
    See Also:
    
    Constant Field Values
  - HEADER_RETRY_AFTER
```
public static final String HEADER_RETRY_AFTER
```
    See Also:
    
    Constant Field Values
  - OPERATION_LASTN
```
public static final String OPERATION_LASTN
```
    Operation name for the $lastn operation
    
    See Also:
    
    Constant Field Values
  - EXT_META_SOURCE
```
public static final String EXT_META_SOURCE
```
    This extension represents the equivalent of the Resource.meta.source field within R4+ resources, and is for use in DSTU3 resources. It should contain a value of type uri and will be located on the Resource.meta
    
    See Also:
    
    Constant Field Values
  - CODESYSTEM_VALIDATE_NOT_NEEDED
```
public static final String CODESYSTEM_VALIDATE_NOT_NEEDED
```
- Constructor Detail
  - Constants
```
public Constants()
```
- Method Detail
  - codeSystemNotNeeded
```
public static boolean codeSystemNotNeeded(String theCodeSystem)
```
  - codeSystemWithDefaultDescription
```
public static String codeSystemWithDefaultDescription(String theSystem)
```

Class Constants

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

CT_TEXT_CSV

HEADER_REQUEST_ID

HEADER_REQUEST_SOURCE

CACHE_CONTROL_MAX_RESULTS

CACHE_CONTROL_NO_CACHE

CACHE_CONTROL_NO_STORE

CHARSET_NAME_UTF8

CHARSET_UTF8

CHARSET_UTF8_CTSUFFIX

CORS_ALLOWED_HEADERS

CORS_ALLWED_METHODS

CT_FHIR_JSON

CT_RDF_TURTLE

CT_FHIR_JSON_NEW

CT_FHIR_XML

CT_FHIR_XML_NEW

CT_HTML

CT_HTML_WITH_UTF8

CT_JSON

CT_JSON_PATCH

CT_OCTET_STREAM

CT_TEXT

CT_TEXT_WITH_UTF8

CT_X_FORM_URLENCODED

CT_XML

CT_XML_PATCH

ENCODING_GZIP

EXTOP_PROCESS_MESSAGE

EXTOP_VALIDATE

EXTOP_VALIDATE_MODE

EXTOP_VALIDATE_PROFILE

EXTOP_VALIDATE_RESOURCE

FORMAT_HTML

FORMAT_JSON

FORMAT_XML

FORMAT_TURTLE

FORMATS_HTML

FORMATS_HTML_JSON

FORMATS_HTML_XML

HEADER_ACCEPT

HEADER_ACCEPT_ENCODING

HEADER_ACCEPT_VALUE_JSON_NON_LEGACY

HEADER_ACCEPT_VALUE_XML_NON_LEGACY

HEADER_ACCEPT_VALUE_XML_OR_JSON_LEGACY

HEADER_ACCEPT_VALUE_XML_OR_JSON_NON_LEGACY

HEADER_ALLOW

HEADER_AUTHORIZATION

HEADER_AUTHORIZATION_VALPREFIX_BASIC

HEADER_AUTHORIZATION_VALPREFIX_BEARER

HEADER_CACHE_CONTROL

HEADER_CONTENT_DISPOSITION

HEADER_CONTENT_ENCODING

HEADER_CONTENT_LOCATION

HEADER_CONTENT_LOCATION_LC

HEADER_CONTENT_TYPE

HEADER_CONTENT_TYPE_LC

HEADER_COOKIE

HEADER_CORS_ALLOW_METHODS

HEADER_CORS_ALLOW_ORIGIN

HEADER_CORS_EXPOSE_HEADERS

HEADER_ETAG

HEADER_ETAG_LC

HEADER_IF_MATCH

HEADER_IF_MATCH_LC

HEADER_IF_MODIFIED_SINCE

HEADER_IF_MODIFIED_SINCE_LC

HEADER_IF_NONE_EXIST

HEADER_IF_NONE_EXIST_LC

HEADER_IF_NONE_MATCH

HEADER_IF_NONE_MATCH_LC

HEADER_LAST_MODIFIED

HEADER_LAST_MODIFIED_LOWERCASE

HEADER_LOCATION

HEADER_LOCATION_LC