io.permazen.parse

Class ParseUtil

java.lang.Object

io.permazen.parse.ParseUtil

public final class ParseUtil
extends Object

Parsing utility routines.

Field Summary

Fields

Modifier and Type	Field and Description
static String	IDENT_PATTERN Regular expression that matches valid Java identifiers.

Method Summary

Modifier and Type	Method and Description
static Stream<String>	complete(Collection<String> choices, String prefix) Generate completions based on a set of possibilities and the provided input prefix.
static Stream<String>	complete(Stream<String> choices, String prefix) Generate completions based on a set of possibilities and the provided input prefix.
static Class<?>	getArrayClass(Class<?> base, int dims) Get the array class with the given non-array base type and dimensions.
static Field<?>	resolveField(ParseSession session, ObjId id, String fieldName) Locate the field with the given name in the specified object.
static JField	resolveJField(ParseSession session, ObjId id, String name) Locate the JField with the given name in the specified object.

Methods inherited from class java.lang.Object

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

Field Detail

IDENT_PATTERN

public static final String IDENT_PATTERN

Regular expression that matches valid Java identifiers.

See Also:

Constant Field Values

Method Detail

complete

public static Stream<String> complete(Collection<String> choices,
                                      String prefix)

Generate completions based on a set of possibilities and the provided input prefix.

Parameters:

choices - possible choices

prefix - prefix input so far

Returns:

possible completions

complete

public static Stream<String> complete(Stream<String> choices,
                                      String prefix)

Generate completions based on a set of possibilities and the provided input prefix.

Parameters:

choices - possible choices

prefix - prefix input so far

Returns:

possible completions

resolveJField

public static JField resolveJField(ParseSession session,
                                   ObjId id,
                                   String name)

Locate the JField with the given name in the specified object.

Parameters:

session - current session

id - object ID

name - field name

Returns:

the specified field

Throws:

IllegalArgumentException - if object does not exist

IllegalArgumentException - if object's type does not exist in schema

IllegalArgumentException - if field is not found

IllegalArgumentException - if any parameter is null

IllegalArgumentException - if state is not in SessionMode.PERMAZEN

resolveField

public static Field<?> resolveField(ParseSession session,
                                    ObjId id,
                                    String fieldName)

Locate the field with the given name in the specified object.

Parameters:

session - current session

id - object ID

fieldName - field name

Returns:

the specified field

Throws:

IllegalArgumentException - if object does not exist

IllegalArgumentException - if field is not found

IllegalArgumentException - if any parameter is null

getArrayClass

public static Class<?> getArrayClass(Class<?> base,
                                     int dims)

Get the array class with the given non-array base type and dimensions.

Parameters:

base - base type

dims - number of dimensions

Returns:

the corresponding array type, or base if dims is zero

Throws:

IllegalArgumentException - if base is null

IllegalArgumentException - if base is an array type

IllegalArgumentException - if base is void and dims > 0

IllegalArgumentException - if dims is not in the range 0..255