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package com.fasterxml.jackson.databind.ser.std;

import java.io.IOException;
import java.lang.reflect.Type;

import com.fasterxml.jackson.core.*;

import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.annotation.JacksonStdImpl;
import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonFormatVisitorWrapper;

/**
 * This is the special serializer for regular {@link java.lang.String}s.
 *

 * Since this is one of "native" types, no type information is ever
 * included on serialization (unlike for most scalar types as of 1.5)
 */
@JacksonStdImpl
public final class StringSerializer
// NOTE: generic parameter changed from String to Object in 2.6, to avoid
//   use of bridge methods
    extends NonTypedScalarSerializerBase
{
    private static final long serialVersionUID = 1L;

    public StringSerializer() { super(String.class, false); }

    /**
     * For Strings, both null and Empty String qualify for emptiness.
     */
    @Override
    @Deprecated
    public boolean isEmpty(Object value) {
        String str = (String) value;
        return (str == null) || (str.length() == 0);
    }

    @Override
    public boolean isEmpty(SerializerProvider prov, Object value) {
        String str = (String) value;
        return (str == null) || (str.length() == 0);
    }
    
    @Override
    public void serialize(Object value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
        jgen.writeString((String) value);
    }

    @Override
    public JsonNode getSchema(SerializerProvider provider, Type typeHint) {
        return createSchemaNode("string", true);
    }
    
    @Override
    public void acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor, JavaType typeHint) throws JsonMappingException {
        if (visitor != null) visitor.expectStringFormat(typeHint);
    }
}
    

    

    

            

    

            



    
    






    
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