Interface IQueryEngineFilter

Interface for Query filters.

Namespace: UnityEditor.Search

Syntax

public interface IQueryEngineFilter

Properties

metaInfo

Additional information specific to the filter.

Declaration

IReadOnlyDictionary<string, string> metaInfo { get; }

Property Value

Type	Description
IReadOnlyDictionary<String, String>

operators

Collection of QueryFilterOperators specific for the filter.

Declaration

IReadOnlyDictionary<string, QueryFilterOperator> operators { get; }

Property Value

Type	Description
IReadOnlyDictionary<String, QueryFilterOperator>

overridesStringComparison

Indicates if the filter overrides the global string comparison options.

Declaration

bool overridesStringComparison { get; }

Property Value

Type	Description
Boolean

parameterType

The type of the constant parameter passed to the filter.

Declaration

Type parameterType { get; }

Property Value

Type	Description
Type

regexToken

The regular expression that matches the filter. Matches what precedes the operator in a filter (for example, "id" in "id>=2").

Declaration

Regex regexToken { get; }

Property Value

Type	Description
Regex

stringComparison

The string comparison options of the filter.

Declaration

StringComparison stringComparison { get; }

Property Value

Type	Description
StringComparison

supportedOperators

List of supported operators.

Declaration

IEnumerable<string> supportedOperators { get; }

Property Value

Type	Description
IEnumerable<String>

token

The identifier of the filter. Typically what precedes the operator in a filter (for example, "id" in "id>=2").

Declaration

string token { get; }

Property Value

Type	Description
String

type

The type of the data that is compared by the filter.

Declaration

Type type { get; }

Property Value

Type	Description
Type

usesParameter

Indicates if the filter uses a parameter.

Declaration

bool usesParameter { get; }

Property Value

Type	Description
Boolean

usesRegularExpressionToken

Indicates if the filter uses a regular expression token or not.

Declaration

bool usesRegularExpressionToken { get; }

Property Value

Type	Description
Boolean

usesResolver

Indicates if the filter uses a resolver function.

Declaration

bool usesResolver { get; }

Property Value

Type	Description
Boolean

Methods

AddOperator(String)

Add a custom filter operator specific to the filter. If the operator already exists, the existing operator is returned.

Declaration

QueryFilterOperator AddOperator(string op)

Parameters

Type	Name	Description
String	op	The operator identifier.

Returns

Type	Description
QueryFilterOperator	The added QueryFilterOperator.

AddOrUpdateMetaInfo(String, String)

Add additional information specific to the filter.

Declaration

IQueryEngineFilter AddOrUpdateMetaInfo(string key, string value)

Parameters

Type	Name	Description
String	key	The key of the information.
String	value	The value of the information.

Returns

Type	Description
IQueryEngineFilter	The current IQueryEngineFilter.

AddTypeParser<TFilterConstant>(Func<String, ParseResult<TFilterConstant>>)

Add a type parser specific to the filter that parse a string and returns a custom type. Used by custom operator handlers.

Declaration

IQueryEngineFilter AddTypeParser<TFilterConstant>(Func<string, ParseResult<TFilterConstant>> parser)

Parameters

Type	Name	Description
Func<String, ParseResult<TFilterConstant>>	parser	Callback used to determine if a string can be converted into TFilterConstant. Takes a string and returns a ParseResult<T> object. This contains the success flag, and the actual converted value if it succeeded.

Returns

Type	Description
IQueryEngineFilter	The current IQueryEngineFilter.

Type Parameters

Name	Description
TFilterConstant	The type of the parsed operand that is on the right hand side of the operator.

ClearMetaInfo()

Removes all additional information specific to the filter.

Declaration

IQueryEngineFilter ClearMetaInfo()

Returns

Type	Description
IQueryEngineFilter	The current IQueryEngineFilter.

RemoveMetaInfo(String)

Remove information on the filter.

Declaration

IQueryEngineFilter RemoveMetaInfo(string key)

Parameters

Type	Name	Description
String	key	The key of the information.

Returns

Type	Description
IQueryEngineFilter	The current IQueryEngineFilter.

RemoveOperator(String)

Remove a custom operator specific to the filter.

Declaration

IQueryEngineFilter RemoveOperator(string op)

Parameters

Type	Name	Description
String	op	The operator identifier.

Returns

Type	Description
IQueryEngineFilter	The current IQueryEngineFilter.

SetNestedQueryTransformer<TNestedQueryData, TRhs>(Func<TNestedQueryData, TRhs>)

Set the filter's nested query transformer function. This function takes the result of a nested query and extract the necessary data to compare with the filter.

Declaration

void SetNestedQueryTransformer<TNestedQueryData, TRhs>(Func<TNestedQueryData, TRhs> transformer)

Parameters

Type	Name	Description
Func<TNestedQueryData, TRhs>	transformer	The transformer function.

Type Parameters

Name	Description
TNestedQueryData	The type of data returned by the nested query.
TRhs	The type expected on the right hand side of the filter.