com.pushtorefresh.storio.internal

Class InternalQueries

java.lang.Object

com.pushtorefresh.storio.internal.InternalQueries

public final class InternalQueries
extends java.lang.Object

Util methods for queries.

For internal usage only!

Method Summary

Modifier and Type	Method and Description
static java.lang.String[]	nonNullArrayOfStrings(java.util.List<java.lang.String> list) Converts list of strings to non-null array of strings.
static java.util.Set<java.lang.String>	nonNullSet(java.util.Collection<java.lang.String> collection) Converts collection of something to non-null set.
static java.util.Set<java.lang.String>	nonNullSet(java.lang.String[] items) Converts array of something to non-null set.
static java.util.Set<java.lang.String>	nonNullSet(java.lang.String firstItem, java.lang.String[] otherItems) Converts array of something to non-null set.
static java.lang.String	nonNullString(java.lang.String str) Converts nullable string to non-null empty string if string was null and returns string as is otherwise.
static java.lang.String[]	nullableArrayOfStrings(java.util.List<java.lang.Object> list) Converts list of objects to nullable array of strings.
static java.lang.String[]	nullableArrayOfStringsFromListOfStrings(java.util.List<java.lang.String> list) Converts list of strings to nullable array of strings.
static java.lang.String	nullableString(java.lang.String str) Coverts nullable string to nullable string and if string was null or empty and returns string as is otherwise.
static <T> java.util.List<T>	unmodifiableNonNullList(java.util.List<T> list) Converts list of something to unmodifiable non-null list.
static java.util.List<java.lang.Object>	unmodifiableNonNullList(java.lang.Object[] args) Converts array of objects to List<Object>.
static java.util.List<java.lang.String>	unmodifiableNonNullListOfStrings(java.util.List<?> args) Coverts list of objects to List<String>.
static java.util.List<java.lang.String>	unmodifiableNonNullListOfStrings(java.lang.Object[] args) Converts array of objects to List<String>.
static <T> java.util.Set<T>	unmodifiableNonNullSet(java.util.Set<T> set) Converts set of something to unmodifiable non-null set.

Methods inherited from class java.lang.Object

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

Method Detail

unmodifiableNonNullListOfStrings

@NonNull
public static java.util.List<java.lang.String> unmodifiableNonNullListOfStrings(@Nullable
                                                                                         java.lang.Object[] args)

Converts array of objects to List<String>.

Parameters:

args - array objects that will be converted to list of strings.

Returns:

non-null, unmodifiable list of strings.

unmodifiableNonNullListOfStrings

@NonNull
public static java.util.List<java.lang.String> unmodifiableNonNullListOfStrings(@Nullable
                                                                                         java.util.List<?> args)

Coverts list of objects to List<String>.

Parameters:

args - list of objects that will be converted to list of strings.

Returns:

non-null, unmodifiable list of strings.

unmodifiableNonNullList

@NonNull
public static java.util.List<java.lang.Object> unmodifiableNonNullList(@Nullable
                                                                                java.lang.Object[] args)

Converts array of objects to List<Object>.

Parameters:

args - array of objects.

Returns:

non-null, unmodifiable list of objects.

unmodifiableNonNullList

@NonNull
public static <T> java.util.List<T> unmodifiableNonNullList(@Nullable
                                                                     java.util.List<T> list)

Converts list of something to unmodifiable non-null list.

Parameters:

list - list to convert, can be null.

Returns:

non-null, unmodifiable list of something.

unmodifiableNonNullSet

@NonNull
public static <T> java.util.Set<T> unmodifiableNonNullSet(@Nullable
                                                                   java.util.Set<T> set)

Converts set of something to unmodifiable non-null set.

Parameters:

set - set to convert, can be null.

Returns:

non-null, unmodifiable set of something.

nonNullArrayOfStrings

@NonNull
public static java.lang.String[] nonNullArrayOfStrings(@Nullable
                                                                java.util.List<java.lang.String> list)

Converts list of strings to non-null array of strings.

Parameters:

list - of strings.

Returns:

non-null array of strings.

nullableArrayOfStringsFromListOfStrings

@Nullable
public static java.lang.String[] nullableArrayOfStringsFromListOfStrings(@Nullable
                                                                                   java.util.List<java.lang.String> list)

Converts list of strings to nullable array of strings.

Parameters:

list - list of strings.

Returns:

nullable array of strings.

nullableArrayOfStrings

@Nullable
public static java.lang.String[] nullableArrayOfStrings(@Nullable
                                                                  java.util.List<java.lang.Object> list)

Converts list of objects to nullable array of strings.

Parameters:

list - list of objects that will be converted to array of strings.

Returns:

nullable array of strings.

nonNullString

@NonNull
public static java.lang.String nonNullString(@Nullable
                                                      java.lang.String str)

Converts nullable string to non-null empty string if string was null and returns string as is otherwise.

Parameters:

str - string to convert, can be null.

Returns:

non-null string, can be empty.

nullableString

@Nullable
public static java.lang.String nullableString(@Nullable
                                                        java.lang.String str)

Coverts nullable string to nullable string and if string was null or empty and returns string as is otherwise.

Parameters:

str - string to convert, can be null.

Returns:

nullable string, can not be empty.

nonNullSet

@NonNull
public static java.util.Set<java.lang.String> nonNullSet(@Nullable
                                                                  java.util.Collection<java.lang.String> collection)

Converts collection of something to non-null set.

Parameters:

collection - source collection to convert, can be null.

Returns:

non-null, set of something.

nonNullSet

@NonNull
public static java.util.Set<java.lang.String> nonNullSet(@Nullable
                                                                  java.lang.String[] items)

Converts array of something to non-null set.

Parameters:

items - source items to convert, can be null.

Returns:

non-null, set of something.

nonNullSet

@NonNull
public static java.util.Set<java.lang.String> nonNullSet(@NonNull
                                                                  java.lang.String firstItem,
                                                                  @Nullable
                                                                  java.lang.String[] otherItems)

Converts array of something to non-null set.

Parameters:

firstItem - the first required source item.

otherItems - other source items to convert, can be null.

Returns:

non-null, set of something.