com.datastax.oss.dsbulk.codecs.text.json

Class JsonNodeConvertingCodec<T>

java.lang.Object

com.datastax.oss.dsbulk.codecs.api.ConvertingCodec<JsonNode,T>

com.datastax.oss.dsbulk.codecs.text.json.JsonNodeConvertingCodec<T>

All Implemented Interfaces:

TypeCodec<JsonNode>

Direct Known Subclasses:

JsonNodeToBigDecimalCodec, JsonNodeToBigIntegerCodec, JsonNodeToBlobCodec, JsonNodeToBooleanCodec, JsonNodeToByteCodec, JsonNodeToCollectionCodec, JsonNodeToDateRangeCodec, JsonNodeToDoubleCodec, JsonNodeToDurationCodec, JsonNodeToFloatCodec, JsonNodeToGeometryCodec, JsonNodeToInetAddressCodec, JsonNodeToIntegerCodec, JsonNodeToLongCodec, JsonNodeToMapCodec, JsonNodeToShortCodec, JsonNodeToStringCodec, JsonNodeToTemporalCodec, JsonNodeToTupleCodec, JsonNodeToUDTCodec, JsonNodeToUnknownTypeCodec, JsonNodeToUUIDCodec

public abstract class JsonNodeConvertingCodec<T>
extends ConvertingCodec<JsonNode,T>

Field Summary

Fields inherited from class com.datastax.oss.dsbulk.codecs.api.ConvertingCodec

internalCodec, javaType

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	JsonNodeConvertingCodec(TypeCodec<T> targetCodec, List<String> nullStrings)

Method Summary

Modifier and Type	Method and Description
protected boolean	isNull(JsonNode node) Whether the input is null.
protected boolean	isNullOrEmpty(JsonNode node) Whether the input is null or empty.

Methods inherited from class com.datastax.oss.dsbulk.codecs.api.ConvertingCodec

decode, encode, externalToInternal, format, getCqlType, getInternalCodec, getInternalJavaType, getJavaType, internalToExternal, parse

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.datastax.oss.driver.api.core.type.codec.TypeCodec

accepts, accepts, accepts, accepts

Constructor Detail

JsonNodeConvertingCodec

protected JsonNodeConvertingCodec(TypeCodec<T> targetCodec,
                                  List<String> nullStrings)

Method Detail

isNull

protected boolean isNull(JsonNode node)

Whether the input is null.

This method should be used to inspect external inputs that are meant to be converted to textual CQL types only (text, varchar and ascii).

It always considers the empty string as NOT equivalent to NULL, unless the user clearly specifies that the empty string is to be considered as NULL, through the codec.nullStrings setting.

Do NOT use this method for non-textual CQL types; use isNullOrEmpty(JsonNode) instead.

isNullOrEmpty

protected boolean isNullOrEmpty(JsonNode node)

Whether the input is null or empty.

This method should be used to inspect external inputs that are meant to be converted to non-textual CQL types only.

It always considers the empty string as equivalent to NULL, which is in compliance with the documentation of codec.nullStrings: "Note that, regardless of this setting, DSBulk will always convert empty strings to `null` if the target CQL type is not textual (i.e. not text, varchar or ascii)."

Do NOT use this method for textual CQL types; use isNull(JsonNode) instead.