Package com.couchbase.lite

Class ArrayIndexConfiguration

java.lang.Object

com.couchbase.lite.IndexConfiguration

com.couchbase.lite.ArrayIndexConfiguration

public final class ArrayIndexConfiguration
extends IndexConfiguration

Configuration for indexing property values within nested arrays in documents, intended for use with the UNNEST query.

Constructor Summary

Constructors

Constructor	Description
ArrayIndexConfiguration(String path)	Initializes the configuration with paths to the nested array with no expressions constraining the values within the arrays to be indexed.
ArrayIndexConfiguration(String path, String expression, String... expressions)	Initializes the configuration with paths to the nested array and the expressions for the values within the arrays to be indexed.
ArrayIndexConfiguration(String path, List<String> expressions)	Initializes the configuration with paths to the nested array and the expressions for the values within the arrays to be indexed.

Method Summary

Modifier and Type	Method	Description
String	getPath()	Path to the array, which can be nested.

Methods inherited from class com.couchbase.lite.IndexConfiguration

getExpressions

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ArrayIndexConfiguration

public ArrayIndexConfiguration(@NonNull
 String path)

Initializes the configuration with paths to the nested array with no expressions constraining the values within the arrays to be indexed.

Parameters:

path - Path to the array, which can be nested to be indexed. Use "[]" to represent a property that is an array of each nested array level. For a single array or the last level array, the "[]" is optional. For instance, use "contacts[].phones" to specify an array of phones within each contact.

ArrayIndexConfiguration

public ArrayIndexConfiguration(@NonNull
 String path,
 @NonNull
 String expression,
 @Nullable
 String... expressions)

Initializes the configuration with paths to the nested array and the expressions for the values within the arrays to be indexed. A null expression will cause a runtime error.

Parameters:

path - Path to the array, which can be nested to be indexed. Use "[]" to represent a property that is an array of each nested array level. For a single array or the last level array, the "[]" is optional. For instance, use "contacts[].phones" to specify an array of phones within each contact.

expressions - A list of strings, where each string represents an expression defining the values within the array to be indexed. Expressions may not be null.

ArrayIndexConfiguration

public ArrayIndexConfiguration(@NonNull
 String path,
 @Nullable
 List<String> expressions)

Initializes the configuration with paths to the nested array and the expressions for the values within the arrays to be indexed.

Parameters:

path - Path to the array, which can be nested to be indexed. Use "[]" to represent a property that is an array of each nested array level. For a single array or the last level array, the "[]" is optional. For instance, use "contacts[].phones" to specify an array of phones within each contact.

expressions - An optional list of strings, where each string represents an expression defining the values within the array to be indexed. If the array specified by the path contains scalar values, this parameter can be null: see ArrayIndexConfiguration(String)

Method Details

getPath

@NonNull
public String getPath()

Path to the array, which can be nested.