```
public interface CommonParams
```
Parameters used across many handlers

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static class CommonParams.EchoParamStyle
valid values for: echoParams

Field Summary

Fields
Modifier and Type	Field	Description
`static String`	`ACTION`	"action" parameter for SolrPing
`static Set<String>`	`ADMIN_PATHS`
`static String`	`APISPEC_LOCATION`
`static String`	`AUTHC_PATH`
`static String`	`AUTHZ_PATH`
`static String`	`CACHE`	Used as a local parameter on queries.
`static String`	`CHILDDOC`
`static String`	`COLLECTIONS_HANDLER_PATH`
`static String`	`CONFIGSETS_HANDLER_PATH`
`static String`	`CORES_HANDLER_PATH`
`static String`	`COST`	Used as a local param on filter queries in conjunction with cache=false.
`static String`	`CPU_ALLOWED`	Maximum query CPU usage value in milliseconds.
`static String`	`DEBUG`	Whether to provide debug info for specific items.
`static String`	`DEBUG_QUERY`	whether to include debug data for all components pieces, including doing explains
`static String`	`DF`	default query field
`static String`	`DISABLE`	"disable" value for SolrPing action
`static String`	`DISABLE_REQUEST_ID`	Deprecated. this was replaced by the auto-generated trace ids
`static String`	`DISTRIB`	distrib string
`static String`	`DISTRIB_STATS_CACHE`	Parameter to control the distributed term statistics request for current query when distributed IDF is enabled in solrconfig
`static String`	`ENABLE`	"enable" value for SolrPing action
`static String`	`EXCLUDE`
`static String`	`EXPLAIN_OTHER`	another query to explain against
`static String`	`EXPLAIN_STRUCT`	boolean indicating whether score explanations should structured (true), or plain text (false)
`static String`	`FAIL_ON_VERSION_CONFLICTS`
`static String`	`FAILURE`
`static String`	`FALSE`
`static String`	`FIELD`
`static String`	`FILE`
`static String`	`FILES`
`static String`	`FL`	query and init param for field list
`static String`	`FQ`	Lucene query string(s) for filtering the results without affecting scoring
`static String`	`HEADER_ECHO_HANDLER`	'true' if the header should include the handler name
`static String`	`HEADER_ECHO_PARAMS`	include the parameters in the header *
`static String`	`HEALTH_CHECK_HANDLER_PATH`
`static String`	`ID`
`static String`	`INDENT`
`static String`	`INFO_HANDLER_PATH`
`static String`	`INTROSPECT`
`static String`	`IS_QUERY_CANCELLABLE`	Is the query cancellable?
`static String`	`JAVABIN`
`static String`	`JAVABIN_MIME`
`static String`	`JSON`
`static String`	`JSON_MIME`
`static String`	`LOG_PARAMS_LIST`	which parameters to log (if not supplied all parameters will be logged) *
`static String`	`METRICS_PATH`
`static String`	`MIN_EXACT_COUNT`	The number of hits that need to be counted accurately.
`static String`	`MULTI_THREADED`	Whether or not the search may use the multi-threaded logic
`static String`	`NAME`
`static String`	`NOW`	Override for the concept of "NOW" to be used throughout this request, expressed as milliseconds since epoch.
`static String`	`OK`
`static String`	`OMIT_HEADER`	include header in the response
`static String`	`OUTPUT_KEY`
`static String`	`PARTIAL_RESULTS`	If true then allow returning partial results.
`static String`	`PATH`
`static String`	`PING`	"ping" value for SolrPing action
`static String`	`PING_HANDLER`	handler value for SolrPing
`static String`	`Q`	query string
`static String`	`QT`	the Request Handler (formerly known as the Query Type) - which Request Handler should handle the request
`static String`	`QUERY`	`DEBUG` value indicating an interest in debug output related to the Query (parsing, etc.)
`static String`	`QUERY_UUID`	Custom query UUID if provided.
`static String`	`REQUEST_ID`	Deprecated. this was replaced by the auto-generated trace ids
`static String`	`REQUEST_PURPOSE`	Request Purpose parameter added to each internal shard request when using debug=track
`static String`	`RESULTS`	`DEBUG` value indicating an interest in debug output related to the results (explains)
`static String`	`ROWS`	number of documents to return starting at "start"
`static int`	`ROWS_DEFAULT`
`static String`	`RQ`	rank query
`static String`	`SEGMENT_TERMINATE_EARLY`	Whether or not the search may be terminated early within a segment.
`static boolean`	`SEGMENT_TERMINATE_EARLY_DEFAULT`
`static String`	`SOLR_REQUEST_CONTEXT_PARAM`
`static String`	`SOLR_REQUEST_TYPE_PARAM`
`static String`	`SORT`	sort order
`static String`	`START`	zero based offset of matching documents to retrieve
`static int`	`START_DEFAULT`
`static String`	`STATUS`
`static String`	`STREAM_BODY`	If the content stream should come directly from a field
`static String`	`STREAM_CONTENTTYPE`	Explicitly set the content type for the input stream If multiple streams are specified, the explicit contentType will be used for all of them.
`static String`	`STREAM_FILE`	If the content stream should come from a File (using FileReader)
`static String`	`STREAM_URL`	If the content stream should come from a URL (using URLConnection)
`static String`	`SYSTEM_INFO_PATH`
`static String`	`TAG`
`static String`	`TASK_CHECK_UUID`	UUID of the task whose status is to be checked
`static String`	`TERMS`
`static String`	`THREADS`
`static String`	`TIME_ALLOWED`	Timeout value in milliseconds.
`static String`	`TIMING`	`DEBUG` value indicating an interest in debug output related to timing
`static String`	`TRACK`	`DEBUG` value indicating an interest in debug output related to the distributed tracking
`static String`	`TRUE`
`static String`	`TYPE`	document type in `CollectionAdminParams.SYSTEM_COLL` collection.
`static String`	`TZ`	Specifies the TimeZone used by the client for the purposes of any DateMath rounding that may take place when executing the request
`static String`	`VALUE`
`static String`	`VALUE_LONG`
`static String`	`VERSION`	version parameter to check request-response compatibility
`static String`	`VERSION_FIELD`
`static String`	`WT`	the response writer type - the format of the response
`static String`	`XSL`	stylesheet to apply to XML results
`static String`	`ZK_PATH`
`static String`	`ZK_STATUS_PATH`

- Field Detail
  - NOW
```
static final String NOW
```
    Override for the concept of "NOW" to be used throughout this request, expressed as milliseconds since epoch. This is primarily used in distributed search to ensure consistent time values are used across multiple sub-requests.
    
    See Also:
    
    Constant Field Values
  - TZ
```
static final String TZ
```
    Specifies the TimeZone used by the client for the purposes of any DateMath rounding that may take place when executing the request
    
    See Also:
    
    Constant Field Values
  - QT
```
static final String QT
```
    the Request Handler (formerly known as the Query Type) - which Request Handler should handle the request
    
    See Also:
    
    Constant Field Values
  - WT
```
static final String WT
```
    the response writer type - the format of the response
    
    See Also:
    
    Constant Field Values
  - Q
```
static final String Q
```
    query string
    
    See Also:
    
    Constant Field Values
  - RQ
```
static final String RQ
```
    rank query
    
    See Also:
    
    Constant Field Values
  - DISTRIB
```
static final String DISTRIB
```
    distrib string
    
    See Also:
    
    Constant Field Values
  - SORT
```
static final String SORT
```
    sort order
    
    See Also:
    
    Constant Field Values
  - FQ
```
static final String FQ
```
    Lucene query string(s) for filtering the results without affecting scoring
    
    See Also:
    
    Constant Field Values
  - START
```
static final String START
```
    zero based offset of matching documents to retrieve
    
    See Also:
    
    Constant Field Values
  - START_DEFAULT
```
static final int START_DEFAULT
```
    See Also:
    
    Constant Field Values
  - ROWS
```
static final String ROWS
```
    number of documents to return starting at "start"
    
    See Also:
    
    Constant Field Values
  - ROWS_DEFAULT
```
static final int ROWS_DEFAULT
```
    See Also:
    
    Constant Field Values
  - INDENT
```
static final String INDENT
```
    See Also:
    
    Constant Field Values
  - PING_HANDLER
```
static final String PING_HANDLER
```
    handler value for SolrPing
    
    See Also:
    
    Constant Field Values
  - ACTION
```
static final String ACTION
```
    "action" parameter for SolrPing
    
    See Also:
    
    Constant Field Values
  - DISABLE
```
static final String DISABLE
```
    "disable" value for SolrPing action
    
    See Also:
    
    Constant Field Values
  - ENABLE
```
static final String ENABLE
```
    "enable" value for SolrPing action
    
    See Also:
    
    Constant Field Values
  - PING
```
static final String PING
```
    "ping" value for SolrPing action
    
    See Also:
    
    Constant Field Values
  - XSL
```
static final String XSL
```
    stylesheet to apply to XML results
    
    See Also:
    
    Constant Field Values
  - VERSION
```
static final String VERSION
```
    version parameter to check request-response compatibility
    
    See Also:
    
    Constant Field Values
  - FL
```
static final String FL
```
    query and init param for field list
    
    See Also:
    
    Constant Field Values
  - DF
```
static final String DF
```
    default query field
    
    See Also:
    
    Constant Field Values
  - DEBUG_QUERY
```
static final String DEBUG_QUERY
```
    whether to include debug data for all components pieces, including doing explains
    
    See Also:
    
    Constant Field Values
  - DEBUG
```
static final String DEBUG
```
    Whether to provide debug info for specific items.
    
    See Also:
    
    DEBUG_QUERY, Constant Field Values
  - TIMING
```
static final String TIMING
```
    DEBUG value indicating an interest in debug output related to timing
    
    See Also:
    
    Constant Field Values
  - RESULTS
```
static final String RESULTS
```
    DEBUG value indicating an interest in debug output related to the results (explains)
    
    See Also:
    
    Constant Field Values
  - QUERY
```
static final String QUERY
```
    DEBUG value indicating an interest in debug output related to the Query (parsing, etc.)
    
    See Also:
    
    Constant Field Values
  - TRACK
```
static final String TRACK
```
    DEBUG value indicating an interest in debug output related to the distributed tracking
    
    See Also:
    
    Constant Field Values
  - EXPLAIN_STRUCT
```
static final String EXPLAIN_STRUCT
```
    boolean indicating whether score explanations should structured (true), or plain text (false)
    
    See Also:
    
    Constant Field Values
  - EXPLAIN_OTHER
```
static final String EXPLAIN_OTHER
```
    another query to explain against
    
    See Also:
    
    Constant Field Values
  - STREAM_URL
```
static final String STREAM_URL
```
    If the content stream should come from a URL (using URLConnection)
    
    See Also:
    
    Constant Field Values
  - STREAM_FILE
```
static final String STREAM_FILE
```
    If the content stream should come from a File (using FileReader)
    
    See Also:
    
    Constant Field Values
  - STREAM_BODY
```
static final String STREAM_BODY
```
    If the content stream should come directly from a field
    
    See Also:
    
    Constant Field Values
  - STREAM_CONTENTTYPE
```
static final String STREAM_CONTENTTYPE
```
    Explicitly set the content type for the input stream If multiple streams are specified, the explicit contentType will be used for all of them.
    
    See Also:
    
    Constant Field Values
  - SEGMENT_TERMINATE_EARLY
```
static final String SEGMENT_TERMINATE_EARLY
```
    Whether or not the search may be terminated early within a segment.
    
    See Also:
    
    Constant Field Values
  - SEGMENT_TERMINATE_EARLY_DEFAULT
```
static final boolean SEGMENT_TERMINATE_EARLY_DEFAULT
```
    See Also:
    
    Constant Field Values
  - PARTIAL_RESULTS
```
static final String PARTIAL_RESULTS
```
    If true then allow returning partial results. If false and full results can't be produced return no results / error.
    
    See Also:
    
    Constant Field Values
  - TIME_ALLOWED
```
static final String TIME_ALLOWED
```
    Timeout value in milliseconds. If not set, or the value is < 0, there is no timeout.
    
    See Also:
    
    Constant Field Values
  - MULTI_THREADED
```
static final String MULTI_THREADED
```
    Whether or not the search may use the multi-threaded logic
    
    See Also:
    
    Constant Field Values
  - CPU_ALLOWED
```
static final String CPU_ALLOWED
```
    Maximum query CPU usage value in milliseconds. If not set, or the value is < 0, there is no timeout.
    
    See Also:
    
    Constant Field Values
  - IS_QUERY_CANCELLABLE
```
static final String IS_QUERY_CANCELLABLE
```
    Is the query cancellable?
    
    See Also:
    
    Constant Field Values
  - QUERY_UUID
```
static final String QUERY_UUID
```
    Custom query UUID if provided.
    
    See Also:
    
    Constant Field Values
  - TASK_CHECK_UUID
```
static final String TASK_CHECK_UUID
```
    UUID of the task whose status is to be checked
    
    See Also:
    
    Constant Field Values
  - MIN_EXACT_COUNT
```
static final String MIN_EXACT_COUNT
```
    The number of hits that need to be counted accurately. If more than MIN_EXACT_COUNT documents match a query, then the value in "numFound" may be an estimate to speedup search.
    
    See Also:
    
    Constant Field Values
  - HEADER_ECHO_HANDLER
```
static final String HEADER_ECHO_HANDLER
```
    'true' if the header should include the handler name
    
    See Also:
    
    Constant Field Values
  - HEADER_ECHO_PARAMS
```
static final String HEADER_ECHO_PARAMS
```
    include the parameters in the header *
    
    See Also:
    
    Constant Field Values
  - OMIT_HEADER
```
static final String OMIT_HEADER
```
    include header in the response
    
    See Also:
    
    Constant Field Values
  - CORES_HANDLER_PATH
```
static final String CORES_HANDLER_PATH
```
    See Also:
    
    Constant Field Values
  - COLLECTIONS_HANDLER_PATH
```
static final String COLLECTIONS_HANDLER_PATH
```
    See Also:
    
    Constant Field Values
  - INFO_HANDLER_PATH
```
static final String INFO_HANDLER_PATH
```
    See Also:
    
    Constant Field Values
  - HEALTH_CHECK_HANDLER_PATH
```
static final String HEALTH_CHECK_HANDLER_PATH
```
    See Also:
    
    Constant Field Values
  - CONFIGSETS_HANDLER_PATH
```
static final String CONFIGSETS_HANDLER_PATH
```
    See Also:
    
    Constant Field Values
  - AUTHZ_PATH
```
static final String AUTHZ_PATH
```
    See Also:
    
    Constant Field Values
  - AUTHC_PATH
```
static final String AUTHC_PATH
```
    See Also:
    
    Constant Field Values
  - ZK_PATH
```
static final String ZK_PATH
```
    See Also:
    
    Constant Field Values
  - ZK_STATUS_PATH
```
static final String ZK_STATUS_PATH
```
    See Also:
    
    Constant Field Values
  - SYSTEM_INFO_PATH
```
static final String SYSTEM_INFO_PATH
```
    See Also:
    
    Constant Field Values
  - METRICS_PATH
```
static final String METRICS_PATH
```
    See Also:
    
    Constant Field Values
  - STATUS
```
static final String STATUS
```
    See Also:
    
    Constant Field Values
  - OK
```
static final String OK
```
    See Also:
    
    Constant Field Values
  - FAILURE
```
static final String FAILURE
```
    See Also:
    
    Constant Field Values
  - ADMIN_PATHS
```
static final Set<String> ADMIN_PATHS
```
  - APISPEC_LOCATION
```
static final String APISPEC_LOCATION
```
    See Also:
    
    Constant Field Values
  - INTROSPECT
```
static final String INTROSPECT
```
    See Also:
    
    Constant Field Values
  - LOG_PARAMS_LIST
```
static final String LOG_PARAMS_LIST
```
    which parameters to log (if not supplied all parameters will be logged) *
    
    See Also:
    
    Constant Field Values
  - EXCLUDE
```
static final String EXCLUDE
```
    See Also:
    
    Constant Field Values
  - TAG
```
static final String TAG
```
    See Also:
    
    Constant Field Values
  - TERMS
```
static final String TERMS
```
    See Also:
    
    Constant Field Values
  - OUTPUT_KEY
```
static final String OUTPUT_KEY
```
    See Also:
    
    Constant Field Values
  - FIELD
```
static final String FIELD
```
    See Also:
    
    Constant Field Values
  - VALUE
```
static final String VALUE
```
    See Also:
    
    Constant Field Values
  - THREADS
```
static final String THREADS
```
    See Also:
    
    Constant Field Values
  - TRUE
```
static final String TRUE
```
  - FALSE
```
static final String FALSE
```
  - TYPE
```
static final String TYPE
```
    document type in CollectionAdminParams.SYSTEM_COLL collection. *
    
    See Also:
    
    Constant Field Values
  - CACHE
```
static final String CACHE
```
    Used as a local parameter on queries. cache=false means don't check any query or filter caches. cache=true is the default.
    
    See Also:
    
    Constant Field Values
  - COST
```
static final String COST
```
    Used as a local param on filter queries in conjunction with cache=false. Filters are checked in order, from smallest cost to largest. If cost>=100 and the query implements PostFilter, then that interface will be used to do post query filtering.
    
    See Also:
    
    Constant Field Values
  - REQUEST_ID
```
@Deprecated(since="9.4")
static final String REQUEST_ID
```
    Deprecated.
    this was replaced by the auto-generated trace ids
    
    Request ID parameter added to all distributed queries (that do not opt out)
    
    See Also:
    
    DISABLE_REQUEST_ID, Constant Field Values
  - DISABLE_REQUEST_ID
```
@Deprecated(since="9.4")
static final String DISABLE_REQUEST_ID
```
    Deprecated.
    this was replaced by the auto-generated trace ids
    
    An opt-out flag to prevent the addition of REQUEST_ID tracing on distributed queries
    Defaults to 'false' if not specified.
    
    See Also:
    
    REQUEST_ID, Constant Field Values
  - DISTRIB_STATS_CACHE
```
static final String DISTRIB_STATS_CACHE
```
    Parameter to control the distributed term statistics request for current query when distributed IDF is enabled in solrconfig
    Defaults to 'true' if not specified. Distributed stats request will be disabled by setting to 'false'
    
    See Also:
    
    Constant Field Values
  - REQUEST_PURPOSE
```
static final String REQUEST_PURPOSE
```
    Request Purpose parameter added to each internal shard request when using debug=track
    
    See Also:
    
    Constant Field Values
  - JAVABIN
```
static final String JAVABIN
```
    See Also:
    
    Constant Field Values
  - JSON
```
static final String JSON
```
    See Also:
    
    Constant Field Values
  - PATH
```
static final String PATH
```
    See Also:
    
    Constant Field Values
  - NAME
```
static final String NAME
```
    See Also:
    
    Constant Field Values
  - VALUE_LONG
```
static final String VALUE_LONG
```
    See Also:
    
    Constant Field Values
  - SOLR_REQUEST_CONTEXT_PARAM
```
static final String SOLR_REQUEST_CONTEXT_PARAM
```
    See Also:
    
    Constant Field Values
  - SOLR_REQUEST_TYPE_PARAM
```
static final String SOLR_REQUEST_TYPE_PARAM
```
    See Also:
    
    Constant Field Values
  - VERSION_FIELD
```
static final String VERSION_FIELD
```
    See Also:
    
    Constant Field Values
  - FAIL_ON_VERSION_CONFLICTS
```
static final String FAIL_ON_VERSION_CONFLICTS
```
    See Also:
    
    Constant Field Values
  - ID
```
static final String ID
```
    See Also:
    
    Constant Field Values
  - JSON_MIME
```
static final String JSON_MIME
```
    See Also:
    
    Constant Field Values
  - JAVABIN_MIME
```
static final String JAVABIN_MIME
```
    See Also:
    
    Constant Field Values
  - FILE
```
static final String FILE
```
    See Also:
    
    Constant Field Values
  - FILES
```
static final String FILES
```
    See Also:
    
    Constant Field Values
  - CHILDDOC
```
static final String CHILDDOC
```
    See Also:
    
    Constant Field Values

Interface CommonParams

Nested Class Summary

Field Summary

Field Detail

NOW

TZ

QT

WT

Q

RQ

DISTRIB

SORT

FQ

START

START_DEFAULT

ROWS

ROWS_DEFAULT

INDENT

PING_HANDLER

ACTION

DISABLE

ENABLE

PING

XSL

VERSION

FL

DF

DEBUG_QUERY

DEBUG

TIMING

RESULTS

QUERY

TRACK

EXPLAIN_STRUCT

EXPLAIN_OTHER

STREAM_URL

STREAM_FILE

STREAM_BODY

STREAM_CONTENTTYPE

SEGMENT_TERMINATE_EARLY

SEGMENT_TERMINATE_EARLY_DEFAULT

PARTIAL_RESULTS

TIME_ALLOWED

MULTI_THREADED

CPU_ALLOWED

IS_QUERY_CANCELLABLE

QUERY_UUID

TASK_CHECK_UUID

MIN_EXACT_COUNT

HEADER_ECHO_HANDLER

HEADER_ECHO_PARAMS

OMIT_HEADER

CORES_HANDLER_PATH

COLLECTIONS_HANDLER_PATH

INFO_HANDLER_PATH

HEALTH_CHECK_HANDLER_PATH

CONFIGSETS_HANDLER_PATH

AUTHZ_PATH

AUTHC_PATH

ZK_PATH

ZK_STATUS_PATH

SYSTEM_INFO_PATH

METRICS_PATH

STATUS

OK

FAILURE

ADMIN_PATHS

APISPEC_LOCATION

INTROSPECT

LOG_PARAMS_LIST

EXCLUDE

TAG

TERMS

OUTPUT_KEY

FIELD

VALUE

THREADS

TRUE

FALSE

TYPE