flink-doris-connector/src/main/java/org/apache/doris/flink/sink/writer/serializer/RowDataSerializer.java [194:221]:
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    public static Builder builder() {
        return new Builder();
    }

    /** Builder for RowDataSerializer. */
    public static class Builder {
        private String[] fieldNames;
        private DataType[] dataTypes;
        private String type;
        private String fieldDelimiter;
        private boolean deletable;

        public Builder setFieldNames(String[] fieldNames) {
            this.fieldNames = fieldNames;
            return this;
        }

        public Builder setFieldType(DataType[] dataTypes) {
            this.dataTypes = dataTypes;
            return this;
        }

        public Builder setType(String type) {
            this.type = type;
            return this;
        }

        public Builder setFieldDelimiter(String fieldDelimiter) {
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flink-doris-connector/src/main/java/org/apache/doris/flink/sink/writer/serializer/RowSerializer.java [68:95]:
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    public static Builder builder() {
        return new Builder();
    }

    /** Builder for RowSerializer. */
    public static class Builder {
        private String[] fieldNames;
        private DataType[] dataTypes;
        private String type;
        private String fieldDelimiter;
        private boolean deletable;

        public Builder setFieldNames(String[] fieldNames) {
            this.fieldNames = fieldNames;
            return this;
        }

        public Builder setFieldType(DataType[] dataTypes) {
            this.dataTypes = dataTypes;
            return this;
        }

        public Builder setType(String type) {
            this.type = type;
            return this;
        }

        public Builder setFieldDelimiter(String fieldDelimiter) {
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