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Cassandra support for Spring Data
/*
* Copyright 2013-2018 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.data.cassandra.core.cql.keyspace;
import org.springframework.lang.Nullable;
/**
* Interface to represent option types.
*
* @author Matthew T. Adams
*/
public interface Option {
/**
* The type that values must be able to be coerced into for this option.
*/
Class getType();
/**
* The (usually lower-cased, underscore-separated) name of this table option.
*/
String getName();
/**
* Whether this option takes a value.
*/
boolean takesValue();
/**
* Whether this option should escape single quotes in its value.
*/
boolean escapesValue();
/**
* Whether this option's value should be single-quoted.
*/
boolean quotesValue();
/**
* Whether this option requires a value.
*/
boolean requiresValue();
/**
* Checks that the given value can be coerced into the type given by {@link #getType()}.
*/
void checkValue(Object value);
/**
* Tests whether the given value can be coerced into the type given by {@link #getType()}.
*/
boolean isCoerceable(Object value);
/**
* First ensures that the given value is coerceable into the type expected by this option, then returns the result of
* {@link Object#toString()} called on the given value. If this option is escaping quotes ({@link #escapesValue()} is
* {@code true}), then single quotes will be escaped, and if this option is quoting values ( {@link #quotesValue()} is
* {@code true}), then the value will be surrounded by single quotes. Given {@literal null}, returns an empty string.
*
* @see #escapesValue()
* @see #quotesValue()
*/
String toString(@Nullable Object value);
}