Multiverse-Core/src/main/java/org/mvplugins/multiverse/core/configuration/node/ValueNode.java

74 lines
2.0 KiB
Java

package org.mvplugins.multiverse.core.configuration.node;
import java.util.Collection;
import io.vavr.control.Option;
import io.vavr.control.Try;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.mvplugins.multiverse.core.configuration.functions.NodeSerializer;
public interface ValueNode<T> extends Node {
/**
* Gets the name of this node. Used for identifying the node from user input.
*
* @return An {@link Option} containing the name of this node, or {@link Option.None} if the node has no name.
*/
@NotNull Option<String> getName();
/**
* Gets the class type {@link T} of the node value.
*
* @return The class type of the node value.
*/
@NotNull Class<T> getType();
/**
* Gets the default value with type {@link T} of the node.
*
* @return The default value of the node.
*/
@Nullable T getDefaultValue();
/**
* Suggests possible string values for this node.
*
* @param input The input string.
* @return A collection of possible string values.
*/
@NotNull Collection<String> suggest(@Nullable String input);
/**
* Parses the given string into a value of type {@link T}. Used for property set by user input.
*
* @param input The string to parse.
* @return The parsed value, or given exception if parsing failed.
*/
@NotNull Try<T> parseFromString(@Nullable String input);
/**
* Gets the serializer for this node.
*
* @return The serializer for this node.
*/
@Nullable NodeSerializer<T> getSerializer();
/**
* Validates the value of this node.
*
* @param value The value to validate.
* @return True if the value is valid, false otherwise.
*/
Try<Void> validate(@Nullable T value);
/**
* Called when the value of this node is set.
*
* @param oldValue The old value.
* @param newValue The new value.
*/
void onSetValue(@Nullable T oldValue, @Nullable T newValue);
}