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Spring Data Relational support
/*
* Copyright 2019-2023 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
*
* https://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.relational.core.sql;
import org.springframework.lang.Nullable;
/**
* Represents a literal.
*
* @author Mark Paluch
* @since 1.1
*/
public class Literal extends AbstractSegment implements Expression {
private @Nullable T content;
Literal(@Nullable T content) {
this.content = content;
}
/**
* @return the content of the literal.
*/
@Nullable
public T getContent() {
return content;
}
/*
* (non-Javadoc)
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
if (this.content == null) {
return "NULL";
}
return content.toString();
}
}