https://github.com/eclipse-vertx/vertx-sql-client: The Reactive PostgreSQL client (Eclipse) 
class io.vertx.pgclient.impl.codec.RowResultDecoder<C, R> implements io.vertx.sqlclient.impl.RowDecoder
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: io.vertx.pgclient.impl.codec.RowResultDecoder
  super_class: java.lang.Object
{
  final java.util.stream.Collector<io.vertx.sqlclient.Row, C, R> collector;
    descriptor: Ljava/util/stream/Collector;
    flags: (0x0010) ACC_FINAL
    Signature: Ljava/util/stream/Collector<Lio/vertx/sqlclient/Row;TC;TR;>;

  final boolean singleton;
    descriptor: Z
    flags: (0x0010) ACC_FINAL

  final java.util.function.BiConsumer<C, io.vertx.sqlclient.Row> accumulator;
    descriptor: Ljava/util/function/BiConsumer;
    flags: (0x0010) ACC_FINAL
    Signature: Ljava/util/function/BiConsumer<TC;Lio/vertx/sqlclient/Row;>;

  final io.vertx.pgclient.impl.codec.PgRowDesc desc;
    descriptor: Lio/vertx/pgclient/impl/codec/PgRowDesc;
    flags: (0x0010) ACC_FINAL

  private int size;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private C container;
    descriptor: Ljava/lang/Object;
    flags: (0x0002) ACC_PRIVATE
    Signature: TC;

  private io.vertx.sqlclient.Row row;
    descriptor: Lio/vertx/sqlclient/Row;
    flags: (0x0002) ACC_PRIVATE

  void <init>(java.util.stream.Collector<io.vertx.sqlclient.Row, C, R>, boolean, io.vertx.pgclient.impl.codec.PgRowDesc);
    descriptor: (Ljava/util/stream/Collector;ZLio/vertx/pgclient/impl/codec/PgRowDesc;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=4, args_size=4
        start local 0 // io.vertx.pgclient.impl.codec.RowResultDecoder this
        start local 1 // java.util.stream.Collector collector
        start local 2 // boolean singleton
        start local 3 // io.vertx.pgclient.impl.codec.PgRowDesc desc
         0: .line 39
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 40
            aload 0 /* this */
            aload 1 /* collector */
            putfield io.vertx.pgclient.impl.codec.RowResultDecoder.collector:Ljava/util/stream/Collector;
         2: .line 41
            aload 0 /* this */
            iload 2 /* singleton */
            putfield io.vertx.pgclient.impl.codec.RowResultDecoder.singleton:Z
         3: .line 42
            aload 0 /* this */
            aload 1 /* collector */
            invokeinterface java.util.stream.Collector.accumulator:()Ljava/util/function/BiConsumer;
            putfield io.vertx.pgclient.impl.codec.RowResultDecoder.accumulator:Ljava/util/function/BiConsumer;
         4: .line 43
            aload 0 /* this */
            aload 3 /* desc */
            putfield io.vertx.pgclient.impl.codec.RowResultDecoder.desc:Lio/vertx/pgclient/impl/codec/PgRowDesc;
         5: .line 44
            return
        end local 3 // io.vertx.pgclient.impl.codec.PgRowDesc desc
        end local 2 // boolean singleton
        end local 1 // java.util.stream.Collector collector
        end local 0 // io.vertx.pgclient.impl.codec.RowResultDecoder this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    6     0       this  Lio/vertx/pgclient/impl/codec/RowResultDecoder<TC;TR;>;
            0    6     1  collector  Ljava/util/stream/Collector<Lio/vertx/sqlclient/Row;TC;TR;>;
            0    6     2  singleton  Z
            0    6     3       desc  Lio/vertx/pgclient/impl/codec/PgRowDesc;
    Signature: (Ljava/util/stream/Collector<Lio/vertx/sqlclient/Row;TC;TR;>;ZLio/vertx/pgclient/impl/codec/PgRowDesc;)V
    MethodParameters:
           Name  Flags
      collector  
      singleton  
      desc       

  public int size();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.vertx.pgclient.impl.codec.RowResultDecoder this
         0: .line 47
            aload 0 /* this */
            getfield io.vertx.pgclient.impl.codec.RowResultDecoder.size:I
            ireturn
        end local 0 // io.vertx.pgclient.impl.codec.RowResultDecoder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/vertx/pgclient/impl/codec/RowResultDecoder<TC;TR;>;

  public void decodeRow(int, io.netty.buffer.ByteBuf);
    descriptor: (ILio/netty/buffer/ByteBuf;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=8, args_size=3
        start local 0 // io.vertx.pgclient.impl.codec.RowResultDecoder this
        start local 1 // int len
        start local 2 // io.netty.buffer.ByteBuf in
         0: .line 52
            aload 0 /* this */
            getfield io.vertx.pgclient.impl.codec.RowResultDecoder.container:Ljava/lang/Object;
            ifnonnull 2
         1: .line 53
            aload 0 /* this */
            aload 0 /* this */
            getfield io.vertx.pgclient.impl.codec.RowResultDecoder.collector:Ljava/util/stream/Collector;
            invokeinterface java.util.stream.Collector.supplier:()Ljava/util/function/Supplier;
            invokeinterface java.util.function.Supplier.get:()Ljava/lang/Object;
            putfield io.vertx.pgclient.impl.codec.RowResultDecoder.container:Ljava/lang/Object;
         2: .line 55
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield io.vertx.pgclient.impl.codec.RowResultDecoder.singleton:Z
            ifeq 8
         3: .line 56
            aload 0 /* this */
            getfield io.vertx.pgclient.impl.codec.RowResultDecoder.row:Lio/vertx/sqlclient/Row;
            ifnonnull 6
         4: .line 57
            aload 0 /* this */
            new io.vertx.pgclient.impl.RowImpl
            dup
            aload 0 /* this */
            getfield io.vertx.pgclient.impl.codec.RowResultDecoder.desc:Lio/vertx/pgclient/impl/codec/PgRowDesc;
            invokespecial io.vertx.pgclient.impl.RowImpl.<init>:(Lio/vertx/sqlclient/impl/RowDesc;)V
            putfield io.vertx.pgclient.impl.codec.RowResultDecoder.row:Lio/vertx/sqlclient/Row;
         5: .line 58
            goto 9
         6: .line 59
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield io.vertx.pgclient.impl.codec.RowResultDecoder.row:Lio/vertx/sqlclient/Row;
            invokeinterface io.vertx.sqlclient.Row.clear:()V
         7: .line 61
            goto 9
         8: .line 62
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            new io.vertx.pgclient.impl.RowImpl
            dup
            aload 0 /* this */
            getfield io.vertx.pgclient.impl.codec.RowResultDecoder.desc:Lio/vertx/pgclient/impl/codec/PgRowDesc;
            invokespecial io.vertx.pgclient.impl.RowImpl.<init>:(Lio/vertx/sqlclient/impl/RowDesc;)V
            putfield io.vertx.pgclient.impl.codec.RowResultDecoder.row:Lio/vertx/sqlclient/Row;
         9: .line 64
      StackMap locals:
      StackMap stack:
            new io.vertx.pgclient.impl.RowImpl
            dup
            aload 0 /* this */
            getfield io.vertx.pgclient.impl.codec.RowResultDecoder.desc:Lio/vertx/pgclient/impl/codec/PgRowDesc;
            invokespecial io.vertx.pgclient.impl.RowImpl.<init>:(Lio/vertx/sqlclient/impl/RowDesc;)V
            astore 3 /* row */
        start local 3 // io.vertx.sqlclient.Row row
        10: .line 65
            iconst_0
            istore 4 /* c */
        start local 4 // int c
        11: goto 23
        12: .line 66
      StackMap locals: io.vertx.sqlclient.Row int
      StackMap stack:
            aload 2 /* in */
            invokevirtual io.netty.buffer.ByteBuf.readInt:()I
            istore 5 /* length */
        start local 5 // int length
        13: .line 67
            aconst_null
            astore 6 /* decoded */
        start local 6 // java.lang.Object decoded
        14: .line 68
            iload 5 /* length */
            iconst_m1
            if_icmpeq 21
        15: .line 69
            aload 0 /* this */
            getfield io.vertx.pgclient.impl.codec.RowResultDecoder.desc:Lio/vertx/pgclient/impl/codec/PgRowDesc;
            getfield io.vertx.pgclient.impl.codec.PgRowDesc.columns:[Lio/vertx/pgclient/impl/codec/PgColumnDesc;
            iload 4 /* c */
            aaload
            astore 7 /* columnDesc */
        start local 7 // io.vertx.pgclient.impl.codec.PgColumnDesc columnDesc
        16: .line 70
            aload 7 /* columnDesc */
            getfield io.vertx.pgclient.impl.codec.PgColumnDesc.dataFormat:Lio/vertx/pgclient/impl/codec/DataFormat;
            getstatic io.vertx.pgclient.impl.codec.DataFormat.BINARY:Lio/vertx/pgclient/impl/codec/DataFormat;
            if_acmpne 19
        17: .line 71
            aload 7 /* columnDesc */
            getfield io.vertx.pgclient.impl.codec.PgColumnDesc.dataType:Lio/vertx/pgclient/impl/codec/DataType;
            aload 2 /* in */
            invokevirtual io.netty.buffer.ByteBuf.readerIndex:()I
            iload 5 /* length */
            aload 2 /* in */
            invokestatic io.vertx.pgclient.impl.codec.DataTypeCodec.decodeBinary:(Lio/vertx/pgclient/impl/codec/DataType;IILio/netty/buffer/ByteBuf;)Ljava/lang/Object;
            astore 6 /* decoded */
        18: .line 72
            goto 20
        19: .line 73
      StackMap locals: int java.lang.Object io.vertx.pgclient.impl.codec.PgColumnDesc
      StackMap stack:
            aload 7 /* columnDesc */
            getfield io.vertx.pgclient.impl.codec.PgColumnDesc.dataType:Lio/vertx/pgclient/impl/codec/DataType;
            aload 2 /* in */
            invokevirtual io.netty.buffer.ByteBuf.readerIndex:()I
            iload 5 /* length */
            aload 2 /* in */
            invokestatic io.vertx.pgclient.impl.codec.DataTypeCodec.decodeText:(Lio/vertx/pgclient/impl/codec/DataType;IILio/netty/buffer/ByteBuf;)Ljava/lang/Object;
            astore 6 /* decoded */
        20: .line 75
      StackMap locals:
      StackMap stack:
            aload 2 /* in */
            iload 5 /* length */
            invokevirtual io.netty.buffer.ByteBuf.skipBytes:(I)Lio/netty/buffer/ByteBuf;
            pop
        end local 7 // io.vertx.pgclient.impl.codec.PgColumnDesc columnDesc
        21: .line 77
      StackMap locals:
      StackMap stack:
            aload 3 /* row */
            aload 6 /* decoded */
            invokeinterface io.vertx.sqlclient.Row.addValue:(Ljava/lang/Object;)Lio/vertx/sqlclient/Tuple;
            pop
        end local 6 // java.lang.Object decoded
        end local 5 // int length
        22: .line 65
            iinc 4 /* c */ 1
      StackMap locals:
      StackMap stack:
        23: iload 4 /* c */
            iload 1 /* len */
            if_icmplt 12
        end local 4 // int c
        24: .line 79
            aload 0 /* this */
            getfield io.vertx.pgclient.impl.codec.RowResultDecoder.accumulator:Ljava/util/function/BiConsumer;
            aload 0 /* this */
            getfield io.vertx.pgclient.impl.codec.RowResultDecoder.container:Ljava/lang/Object;
            aload 3 /* row */
            invokeinterface java.util.function.BiConsumer.accept:(Ljava/lang/Object;Ljava/lang/Object;)V
        25: .line 80
            aload 0 /* this */
            dup
            getfield io.vertx.pgclient.impl.codec.RowResultDecoder.size:I
            iconst_1
            iadd
            putfield io.vertx.pgclient.impl.codec.RowResultDecoder.size:I
        26: .line 81
            return
        end local 3 // io.vertx.sqlclient.Row row
        end local 2 // io.netty.buffer.ByteBuf in
        end local 1 // int len
        end local 0 // io.vertx.pgclient.impl.codec.RowResultDecoder this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0   27     0        this  Lio/vertx/pgclient/impl/codec/RowResultDecoder<TC;TR;>;
            0   27     1         len  I
            0   27     2          in  Lio/netty/buffer/ByteBuf;
           10   27     3         row  Lio/vertx/sqlclient/Row;
           11   24     4           c  I
           13   22     5      length  I
           14   22     6     decoded  Ljava/lang/Object;
           16   21     7  columnDesc  Lio/vertx/pgclient/impl/codec/PgColumnDesc;
    MethodParameters:
      Name  Flags
      len   
      in    

  R complete();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0000) 
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // io.vertx.pgclient.impl.codec.RowResultDecoder this
         0: .line 84
            aload 0 /* this */
            getfield io.vertx.pgclient.impl.codec.RowResultDecoder.container:Ljava/lang/Object;
            ifnonnull 2
         1: .line 85
            aload 0 /* this */
            aload 0 /* this */
            getfield io.vertx.pgclient.impl.codec.RowResultDecoder.collector:Ljava/util/stream/Collector;
            invokeinterface java.util.stream.Collector.supplier:()Ljava/util/function/Supplier;
            invokeinterface java.util.function.Supplier.get:()Ljava/lang/Object;
            putfield io.vertx.pgclient.impl.codec.RowResultDecoder.container:Ljava/lang/Object;
         2: .line 87
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield io.vertx.pgclient.impl.codec.RowResultDecoder.collector:Ljava/util/stream/Collector;
            invokeinterface java.util.stream.Collector.finisher:()Ljava/util/function/Function;
            aload 0 /* this */
            getfield io.vertx.pgclient.impl.codec.RowResultDecoder.container:Ljava/lang/Object;
            invokeinterface java.util.function.Function.apply:(Ljava/lang/Object;)Ljava/lang/Object;
            areturn
        end local 0 // io.vertx.pgclient.impl.codec.RowResultDecoder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lio/vertx/pgclient/impl/codec/RowResultDecoder<TC;TR;>;
    Signature: ()TR;

  void reset();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // io.vertx.pgclient.impl.codec.RowResultDecoder this
         0: .line 91
            aload 0 /* this */
            aconst_null
            putfield io.vertx.pgclient.impl.codec.RowResultDecoder.container:Ljava/lang/Object;
         1: .line 92
            aload 0 /* this */
            iconst_0
            putfield io.vertx.pgclient.impl.codec.RowResultDecoder.size:I
         2: .line 93
            return
        end local 0 // io.vertx.pgclient.impl.codec.RowResultDecoder this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lio/vertx/pgclient/impl/codec/RowResultDecoder<TC;TR;>;
}
Signature: <C:Ljava/lang/Object;R:Ljava/lang/Object;>Ljava/lang/Object;Lio/vertx/sqlclient/impl/RowDecoder;
SourceFile: "RowResultDecoder.java"