io.whitfin.dottie.parser

Class NotationParser

java.lang.Object

io.whitfin.dottie.parser.NotationParser

public class NotationParser
extends Object

Parsing class to deal with all regex required to read back properties. This class will carry out all parsing of segments in order to keep implementation classes smaller and not expose pattern knowledge externally.

Constructor Summary

Constructors

Constructor and Description
NotationParser()

Method Summary

Modifier and Type	Method and Description
static String	findSegment(String input) Finds a segment at the start of the input string, if possible.
static boolean	isAccessor(String input) Returns whether the input is an accessor.
static boolean	isIndex(String input) Returns whether the input is an index.
static boolean	isProperty(String input) Returns whether the input is a property.
static boolean	isPropertyOpener(char input) Returns whether the input character is a property opener.
static boolean	isSegment(String input) Returns whether the input is a valid segment.
static NotationSegment	parseSegment(String segment) Parses a previously found segment into a NotationSegment instance.

Methods inherited from class java.lang.Object

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

Constructor Detail

NotationParser

public NotationParser()

Method Detail

findSegment

@Nullable
public static String findSegment(@Nonnull
                                           String input)

Finds a segment at the start of the input string, if possible.

Parameters:

input - the input string to read back from.

Returns:

a String segment match, if found.

isAccessor

public static boolean isAccessor(@Nonnull
                                 String input)

Returns whether the input is an accessor.

Parameters:

input - the input value to verify against.

Returns:

true if the input is an accessor.

isIndex

public static boolean isIndex(@Nonnull
                              String input)

Returns whether the input is an index.

Parameters:

input - the input value to verify against.

Returns:

true if the input is an index.

isProperty

public static boolean isProperty(@Nonnull
                                 String input)

Returns whether the input is a property.

Parameters:

input - the input value to verify against.

Returns:

true if the input is a property.

isPropertyOpener

public static boolean isPropertyOpener(char input)

Returns whether the input character is a property opener.

Parameters:

input - the input character to verify against.

Returns:

true if the input is an opener.

isSegment

public static boolean isSegment(@Nonnull
                                String input)

Returns whether the input is a valid segment.

Parameters:

input - the input value to verify against.

Returns:

true if the input is a valid segment.

parseSegment

public static NotationSegment parseSegment(@Nonnull
                                           String segment)

Parses a previously found segment into a NotationSegment instance. This method will throw an exception if the provided segment is invalid or null.

Parameters:

segment - the input segment to parse out.

Returns:

an instance of a NotationSegment.