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uniVocity's open source parsers for processing different text formats using a consistent API
/*******************************************************************************
* Copyright 2014 uniVocity Software Pty Ltd
*
* 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 com.univocity.parsers.annotations;
import com.univocity.parsers.common.processor.*;
import com.univocity.parsers.conversions.*;
import java.lang.annotation.*;
/**
* Indicates that parsed values such as "", "?" or "null" should be interpreted as null. If a parsed value exists in {@link NullString#nulls()}, then the field must be set to null.
* A {@link NullStringConversion} will be assigned to this field
*
Commonly used for java beans processed using {@link BeanProcessor} and/or {@link BeanWriterProcessor}
*
* @see Conversion
* @see Conversions
* @see BeanProcessor
* @see BeanWriterProcessor
*
* @author uniVocity Software Pty Ltd - [email protected]
*
*/
@Retention(RetentionPolicy.RUNTIME)
@Inherited
@Target({ElementType.FIELD, ElementType.METHOD, ElementType.ANNOTATION_TYPE})
public @interface NullString {
/**
* A set of Strings that represent a null value instead of a valid String (e.g. "?", "empty", "null" )
* @return Strings that represent {@code null}
*/
String[] nulls();
}