SearchResult.TextMatchInfo


public static final class SearchResult.TextMatchInfo
extends Object implements Parcelable

java.lang.Object
   ↳ android.app.appsearch.SearchResult.TextMatchInfo


This class represents match objects for any text match snippets that might be present in SearchResults from a string query. Using this class, you can get:

  • the full text - all of the text in that String property
  • the exact term match - the 'term' (full word) that matched the query
  • the subterm match - the portion of the matched term that appears in the query
  • a suggested text snippet - a portion of the full text surrounding the exact term match, set to term boundaries. The size of the snippet is specified in SearchSpec.Builder.setMaxSnippetSize(int)
for each text match in the document.

Class Example 1:

A document contains the following text in property "subject":

"A commonly used fake word is foo. Another nonsense word that\u2019s used a lot is bar."

If the queryExpression is "foo" and SearchSpec.getMaxSnippetSize is 10,

Class Example 2:

A document contains one property named "subject" and one property named "sender" which contains a "name" property.

In this case, we will have 2 property paths: sender.name and subject.

Let sender.name = "Test Name Jr." and subject = "Testing 1 2 3"

If the queryExpression is "Test" with SearchSpec.TERM_MATCH_PREFIX and SearchSpec.getMaxSnippetSize() is 10. We will have 2 matches:

Match-1

Match-2

Summary

Inherited constants

Fields

public static final Creator<SearchResult.TextMatchInfo> CREATOR

Public constructors

TextMatchInfo(SearchResult.MatchRange exactMatchRange, SearchResult.MatchRange submatchRange, SearchResult.MatchRange snippetRange)

Creates a new immutable TextMatchInfo.

Public methods

CharSequence getExactMatch()

Gets the exact term of the given entry that matched the query.

SearchResult.MatchRange getExactMatchRange()

Gets the MatchRange of the exact term of the given entry that matched the query.

String getFullText()

Gets the full text corresponding to the given entry.

CharSequence getSnippet()

Gets the snippet corresponding to the given entry.

SearchResult.MatchRange getSnippetRange()

Gets the snippet TextMatchInfo corresponding to the given entry.

CharSequence getSubmatch()

Gets the exact term subsequence of the given entry that matched the query.

SearchResult.MatchRange getSubmatchRange()

Gets the MatchRange of the exact term subsequence of the given entry that matched the query.

void writeToParcel(Parcel dest, int flags)

Flatten this object in to a Parcel.

Inherited methods

Fields

CREATOR

Added in T Extensions 18
public static final Creator<SearchResult.TextMatchInfo> CREATOR

Public constructors

TextMatchInfo

Added in T Extensions 18
public TextMatchInfo (SearchResult.MatchRange exactMatchRange, 
                SearchResult.MatchRange submatchRange, 
                SearchResult.MatchRange snippetRange)

Creates a new immutable TextMatchInfo.

Parameters
exactMatchRange SearchResult.MatchRange: the exact MatchRange for the entry. This value cannot be null.

submatchRange SearchResult.MatchRange: the sub-match MatchRange for the entry. This value cannot be null.

snippetRange SearchResult.MatchRange: the snippet MatchRange for the entry. This value cannot be null.

Public methods

getExactMatch

Added in T Extensions 18
public CharSequence getExactMatch ()

Gets the exact term of the given entry that matched the query.

Class example 1: this returns "foo".

Class example 2: for the first TextMatchInfo, this returns "Test" and, for the second TextMatchInfo, this returns "Testing".

Returns
CharSequence This value cannot be null.

getExactMatchRange

Added in T Extensions 18
public SearchResult.MatchRange getExactMatchRange ()

Gets the MatchRange of the exact term of the given entry that matched the query.

Class example 1: this returns [29, 32].

Class example 2: for the first TextMatchInfo, this returns [0, 4] and, for the second TextMatchInfo, this returns [0, 7].

Returns
SearchResult.MatchRange This value cannot be null.

getFullText

Added in T Extensions 18
public String getFullText ()

Gets the full text corresponding to the given entry.

Class example 1: this returns "A commonly used fake word is foo. Another nonsense word that's used a lot is bar."

Class example 2: for the first TextMatchInfo, this returns "Test Name Jr." and, for the second TextMatchInfo, this returns "Testing 1 2 3".

Returns
String This value cannot be null.

getSnippet

Added in T Extensions 18
public CharSequence getSnippet ()

Gets the snippet corresponding to the given entry.

Snippet - Provides a subset of the content to display. Only populated when requested maxSnippetSize > 0. The size of this content can be changed by SearchSpec.Builder.setMaxSnippetSize(int). Windowing is centered around the middle of the matched token with content on either side clipped to token boundaries.

Class example 1: this returns "foo. Another".

Class example 2: for the first TextMatchInfo, this returns "Test Name" and, for the second TextMatchInfo, this returns "Testing 1 2 3".

Returns
CharSequence This value cannot be null.

getSnippetRange

Added in T Extensions 18
public SearchResult.MatchRange getSnippetRange ()

Gets the snippet TextMatchInfo corresponding to the given entry.

Only populated when set maxSnippetSize > 0 in SearchSpec.Builder.setMaxSnippetSize(int).

Class example 1: this returns [29, 41].

Class example 2: for the first TextMatchInfo, this returns [0, 9] and, for the second TextMatchInfo, this returns [0, 13].

Returns
SearchResult.MatchRange This value cannot be null.

getSubmatch

Added in T Extensions 18
public CharSequence getSubmatch ()

Gets the exact term subsequence of the given entry that matched the query.

Class example 1: this returns "foo".

Class example 2: for the first TextMatchInfo, this returns "Test" and, for the second TextMatchInfo, this returns "Test".

Returns
CharSequence This value cannot be null.

getSubmatchRange

Added in T Extensions 18
public SearchResult.MatchRange getSubmatchRange ()

Gets the MatchRange of the exact term subsequence of the given entry that matched the query.

Class example 1: this returns [29, 32].

Class example 2: for the first TextMatchInfo, this returns [0, 4] and, for the second TextMatchInfo, this returns [0, 4].

Returns
SearchResult.MatchRange This value cannot be null.

writeToParcel

public void writeToParcel (Parcel dest, 
                int flags)

Flatten this object in to a Parcel.

Parameters
dest Parcel: This value cannot be null.

flags int: Additional flags about how the object should be written. May be 0 or Parcelable.PARCELABLE_WRITE_RETURN_VALUE. Value is either 0 or a combination of Parcelable.PARCELABLE_WRITE_RETURN_VALUE, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES