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package org.codehaus.jackson.map.ser.std;

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

import org.codehaus.jackson.JsonGenerationException;
import org.codehaus.jackson.JsonGenerator;
import org.codehaus.jackson.JsonNode;
import org.codehaus.jackson.map.SerializerProvider;
import org.codehaus.jackson.map.JsonMappingException;
import org.codehaus.jackson.map.TypeSerializer;
import org.codehaus.jackson.map.annotate.JacksonStdImpl;

/**
 * Simple general purpose serializer, useful for any
 * type for which {@link Object#toString} returns the desired JSON
 * value.
 */
@JacksonStdImpl
public class ToStringSerializer
    extends SerializerBase
{
    /**
     * Singleton instance to use.
     */
    public final static ToStringSerializer instance = new ToStringSerializer();

    /**
     *

     * Note: usually you should NOT create new instances, but instead use
     * {@link #instance} which is stateless and fully thread-safe. However,
     * there are cases where constructor is needed; for example,
     * when using explicit serializer annotations like
     * {@link org.codehaus.jackson.map.annotate.JsonSerialize#using}.
     */
    public ToStringSerializer() { super(Object.class); }
    
    @Override
    public void serialize(Object value, JsonGenerator jgen, SerializerProvider provider)
        throws IOException, JsonGenerationException
    {
        jgen.writeString(value.toString());
    }

    /* 01-Mar-2011, tatu: We were serializing as "raw" String; but generally that
     *   is not what we want, since lack of type information would imply real
     *   String type.
     */
    /**
     * Default implementation will write type prefix, call regular serialization
     * method (since assumption is that value itself does not need JSON
     * Array or Object start/end markers), and then write type suffix.
     * This should work for most cases; some sub-classes may want to
     * change this behavior.
     */
    @Override
    public void serializeWithType(Object value, JsonGenerator jgen, SerializerProvider provider,
            TypeSerializer typeSer)
        throws IOException, JsonGenerationException
    {
        typeSer.writeTypePrefixForScalar(value, jgen);
        serialize(value, jgen, provider);
        typeSer.writeTypeSuffixForScalar(value, jgen);
    }
    
    @Override
    public JsonNode getSchema(SerializerProvider provider, Type typeHint)
        throws JsonMappingException
    {
        return createSchemaNode("string", true);
    }
    
}
 















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