https://cassandra.apache.org: The Apache Cassandra Project develops a highly scalable second-generation distributed database, bringing together Dynamo's fully distributed design and Bigtable's ColumnFamily-based data model.
  • Andres de la Peña
  • Avinash Lakshman
  • Aleksey Yeschenko
  • Aaron Morton
  • Ariel Weisberg
  • Blake Eggleston
  • Benedict Elliott Smith
  • Benjamin Lerer
  • Branimir Lambov
  • Brandon Williams
  • Carl Yeksigian
  • David Brosiusd
  • Dikang Gu
  • Eric Evans
  • Gary Dusbabek
  • Chris Goffinet
  • Alex Petrov
  • Laine Jaakko Olavi
  • T Jake Luciani
  • Jason Brown
  • Jonathan Ellis
  • Jake Farrell
  • Jeff Jirsa
  • Joel Knighton
  • Josh McKenzie
  • Johan Oskarsson
  • Jun Rao
  • Jay Zhuang
  • Sankalp Kohli
  • Marcus Eriksson
  • Michael Semb Wever
  • Mikhail Stepura
  • Michael Shuler
  • Paulo Motta
  • Prashant Malik
  • Robert Stupp
  • Peter Schuller
  • Sam Tunnicliffe
  • Sylvain Lebresne
  • Stefania Alborghetti
  • Tyler Hobbs
  • Vijay Parthasarathy
  • Pavel Yaskevich
  • Yuki Morishita
  • Nate McCall 
public class org.apache.cassandra.io.sstable.ReducingKeyIterator implements org.apache.cassandra.utils.CloseableIterator<org.apache.cassandra.db.DecoratedKey>
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.cassandra.io.sstable.ReducingKeyIterator
  super_class: java.lang.Object
{
  private final java.util.ArrayList<org.apache.cassandra.io.sstable.KeyIterator> iters;
    descriptor: Ljava/util/ArrayList;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/ArrayList<Lorg/apache/cassandra/io/sstable/KeyIterator;>;

  private org.apache.cassandra.utils.IMergeIterator<org.apache.cassandra.db.DecoratedKey, org.apache.cassandra.db.DecoratedKey> mi;
    descriptor: Lorg/apache/cassandra/utils/IMergeIterator;
    flags: (0x0002) ACC_PRIVATE
    Signature: Lorg/apache/cassandra/utils/IMergeIterator<Lorg/apache/cassandra/db/DecoratedKey;Lorg/apache/cassandra/db/DecoratedKey;>;

  public void <init>(java.util.Collection<org.apache.cassandra.io.sstable.format.SSTableReader>);
    descriptor: (Ljava/util/Collection;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=4, args_size=2
        start local 0 // org.apache.cassandra.io.sstable.ReducingKeyIterator this
        start local 1 // java.util.Collection sstables
         0: .line 38
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 40
            aload 0 /* this */
            new java.util.ArrayList
            dup
            aload 1 /* sstables */
            invokeinterface java.util.Collection.size:()I
            invokespecial java.util.ArrayList.<init>:(I)V
            putfield org.apache.cassandra.io.sstable.ReducingKeyIterator.iters:Ljava/util/ArrayList;
         2: .line 41
            aload 1 /* sstables */
            invokeinterface java.util.Collection.iterator:()Ljava/util/Iterator;
            astore 3
            goto 5
      StackMap locals: org.apache.cassandra.io.sstable.ReducingKeyIterator java.util.Collection top java.util.Iterator
      StackMap stack:
         3: aload 3
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast org.apache.cassandra.io.sstable.format.SSTableReader
            astore 2 /* sstable */
        start local 2 // org.apache.cassandra.io.sstable.format.SSTableReader sstable
         4: .line 42
            aload 0 /* this */
            getfield org.apache.cassandra.io.sstable.ReducingKeyIterator.iters:Ljava/util/ArrayList;
            new org.apache.cassandra.io.sstable.KeyIterator
            dup
            aload 2 /* sstable */
            getfield org.apache.cassandra.io.sstable.format.SSTableReader.descriptor:Lorg/apache/cassandra/io/sstable/Descriptor;
            aload 2 /* sstable */
            getfield org.apache.cassandra.io.sstable.format.SSTableReader.metadata:Lorg/apache/cassandra/config/CFMetaData;
            invokespecial org.apache.cassandra.io.sstable.KeyIterator.<init>:(Lorg/apache/cassandra/io/sstable/Descriptor;Lorg/apache/cassandra/config/CFMetaData;)V
            invokevirtual java.util.ArrayList.add:(Ljava/lang/Object;)Z
            pop
        end local 2 // org.apache.cassandra.io.sstable.format.SSTableReader sstable
         5: .line 41
      StackMap locals:
      StackMap stack:
            aload 3
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 3
         6: .line 43
            return
        end local 1 // java.util.Collection sstables
        end local 0 // org.apache.cassandra.io.sstable.ReducingKeyIterator this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    7     0      this  Lorg/apache/cassandra/io/sstable/ReducingKeyIterator;
            0    7     1  sstables  Ljava/util/Collection<Lorg/apache/cassandra/io/sstable/format/SSTableReader;>;
            4    5     2   sstable  Lorg/apache/cassandra/io/sstable/format/SSTableReader;
    Signature: (Ljava/util/Collection<Lorg/apache/cassandra/io/sstable/format/SSTableReader;>;)V
    MethodParameters:
          Name  Flags
      sstables  

  private void maybeInit();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=6, locals=1, args_size=1
        start local 0 // org.apache.cassandra.io.sstable.ReducingKeyIterator this
         0: .line 47
            aload 0 /* this */
            getfield org.apache.cassandra.io.sstable.ReducingKeyIterator.mi:Lorg/apache/cassandra/utils/IMergeIterator;
            ifnonnull 2
         1: .line 49
            aload 0 /* this */
            aload 0 /* this */
            getfield org.apache.cassandra.io.sstable.ReducingKeyIterator.iters:Ljava/util/ArrayList;
            getstatic org.apache.cassandra.db.DecoratedKey.comparator:Ljava/util/Comparator;
            new org.apache.cassandra.io.sstable.ReducingKeyIterator$1
            dup
            aload 0 /* this */
            invokespecial org.apache.cassandra.io.sstable.ReducingKeyIterator$1.<init>:(Lorg/apache/cassandra/io/sstable/ReducingKeyIterator;)V
            invokestatic org.apache.cassandra.utils.MergeIterator.get:(Ljava/util/List;Ljava/util/Comparator;Lorg/apache/cassandra/utils/MergeIterator$Reducer;)Lorg/apache/cassandra/utils/MergeIterator;
            putfield org.apache.cassandra.io.sstable.ReducingKeyIterator.mi:Lorg/apache/cassandra/utils/IMergeIterator;
         2: .line 70
      StackMap locals:
      StackMap stack:
            return
        end local 0 // org.apache.cassandra.io.sstable.ReducingKeyIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/cassandra/io/sstable/ReducingKeyIterator;

  public void close();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.cassandra.io.sstable.ReducingKeyIterator this
         0: .line 74
            aload 0 /* this */
            getfield org.apache.cassandra.io.sstable.ReducingKeyIterator.mi:Lorg/apache/cassandra/utils/IMergeIterator;
            ifnull 2
         1: .line 75
            aload 0 /* this */
            getfield org.apache.cassandra.io.sstable.ReducingKeyIterator.mi:Lorg/apache/cassandra/utils/IMergeIterator;
            invokeinterface org.apache.cassandra.utils.IMergeIterator.close:()V
         2: .line 76
      StackMap locals:
      StackMap stack:
            return
        end local 0 // org.apache.cassandra.io.sstable.ReducingKeyIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/cassandra/io/sstable/ReducingKeyIterator;

  public long getTotalBytes();
    descriptor: ()J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=5, args_size=1
        start local 0 // org.apache.cassandra.io.sstable.ReducingKeyIterator this
         0: .line 80
            aload 0 /* this */
            invokevirtual org.apache.cassandra.io.sstable.ReducingKeyIterator.maybeInit:()V
         1: .line 82
            lconst_0
            lstore 1 /* m */
        start local 1 // long m
         2: .line 83
            aload 0 /* this */
            getfield org.apache.cassandra.io.sstable.ReducingKeyIterator.mi:Lorg/apache/cassandra/utils/IMergeIterator;
            invokeinterface org.apache.cassandra.utils.IMergeIterator.iterators:()Ljava/lang/Iterable;
            invokeinterface java.lang.Iterable.iterator:()Ljava/util/Iterator;
            astore 4
            goto 5
      StackMap locals: org.apache.cassandra.io.sstable.ReducingKeyIterator long top java.util.Iterator
      StackMap stack:
         3: aload 4
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast java.util.Iterator
            astore 3 /* iter */
        start local 3 // java.util.Iterator iter
         4: .line 85
            lload 1 /* m */
            aload 3 /* iter */
            checkcast org.apache.cassandra.io.sstable.KeyIterator
            invokevirtual org.apache.cassandra.io.sstable.KeyIterator.getTotalBytes:()J
            ladd
            lstore 1 /* m */
        end local 3 // java.util.Iterator iter
         5: .line 83
      StackMap locals:
      StackMap stack:
            aload 4
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 3
         6: .line 87
            lload 1 /* m */
            lreturn
        end local 1 // long m
        end local 0 // org.apache.cassandra.io.sstable.ReducingKeyIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    7     0  this  Lorg/apache/cassandra/io/sstable/ReducingKeyIterator;
            2    7     1     m  J
            4    5     3  iter  Ljava/util/Iterator<Lorg/apache/cassandra/db/DecoratedKey;>;

  public long getBytesRead();
    descriptor: ()J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=5, args_size=1
        start local 0 // org.apache.cassandra.io.sstable.ReducingKeyIterator this
         0: .line 92
            aload 0 /* this */
            invokevirtual org.apache.cassandra.io.sstable.ReducingKeyIterator.maybeInit:()V
         1: .line 94
            lconst_0
            lstore 1 /* m */
        start local 1 // long m
         2: .line 95
            aload 0 /* this */
            getfield org.apache.cassandra.io.sstable.ReducingKeyIterator.mi:Lorg/apache/cassandra/utils/IMergeIterator;
            invokeinterface org.apache.cassandra.utils.IMergeIterator.iterators:()Ljava/lang/Iterable;
            invokeinterface java.lang.Iterable.iterator:()Ljava/util/Iterator;
            astore 4
            goto 5
      StackMap locals: org.apache.cassandra.io.sstable.ReducingKeyIterator long top java.util.Iterator
      StackMap stack:
         3: aload 4
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast java.util.Iterator
            astore 3 /* iter */
        start local 3 // java.util.Iterator iter
         4: .line 97
            lload 1 /* m */
            aload 3 /* iter */
            checkcast org.apache.cassandra.io.sstable.KeyIterator
            invokevirtual org.apache.cassandra.io.sstable.KeyIterator.getBytesRead:()J
            ladd
            lstore 1 /* m */
        end local 3 // java.util.Iterator iter
         5: .line 95
      StackMap locals:
      StackMap stack:
            aload 4
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 3
         6: .line 99
            lload 1 /* m */
            lreturn
        end local 1 // long m
        end local 0 // org.apache.cassandra.io.sstable.ReducingKeyIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    7     0  this  Lorg/apache/cassandra/io/sstable/ReducingKeyIterator;
            2    7     1     m  J
            4    5     3  iter  Ljava/util/Iterator<Lorg/apache/cassandra/db/DecoratedKey;>;

  public boolean hasNext();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.cassandra.io.sstable.ReducingKeyIterator this
         0: .line 104
            aload 0 /* this */
            invokevirtual org.apache.cassandra.io.sstable.ReducingKeyIterator.maybeInit:()V
         1: .line 105
            aload 0 /* this */
            getfield org.apache.cassandra.io.sstable.ReducingKeyIterator.mi:Lorg/apache/cassandra/utils/IMergeIterator;
            invokeinterface org.apache.cassandra.utils.IMergeIterator.hasNext:()Z
            ireturn
        end local 0 // org.apache.cassandra.io.sstable.ReducingKeyIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/cassandra/io/sstable/ReducingKeyIterator;

  public org.apache.cassandra.db.DecoratedKey next();
    descriptor: ()Lorg/apache/cassandra/db/DecoratedKey;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.cassandra.io.sstable.ReducingKeyIterator this
         0: .line 110
            aload 0 /* this */
            invokevirtual org.apache.cassandra.io.sstable.ReducingKeyIterator.maybeInit:()V
         1: .line 111
            aload 0 /* this */
            getfield org.apache.cassandra.io.sstable.ReducingKeyIterator.mi:Lorg/apache/cassandra/utils/IMergeIterator;
            invokeinterface org.apache.cassandra.utils.IMergeIterator.next:()Ljava/lang/Object;
            checkcast org.apache.cassandra.db.DecoratedKey
            areturn
        end local 0 // org.apache.cassandra.io.sstable.ReducingKeyIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/cassandra/io/sstable/ReducingKeyIterator;

  public void remove();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.cassandra.io.sstable.ReducingKeyIterator this
         0: .line 116
            new java.lang.UnsupportedOperationException
            dup
            invokespecial java.lang.UnsupportedOperationException.<init>:()V
            athrow
        end local 0 // org.apache.cassandra.io.sstable.ReducingKeyIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/cassandra/io/sstable/ReducingKeyIterator;

  public java.lang.Object next();
    descriptor: ()Ljava/lang/Object;
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=1, locals=1, args_size=1
         0: .line 1
            aload 0
            invokevirtual org.apache.cassandra.io.sstable.ReducingKeyIterator.next:()Lorg/apache/cassandra/db/DecoratedKey;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: Ljava/lang/Object;Lorg/apache/cassandra/utils/CloseableIterator<Lorg/apache/cassandra/db/DecoratedKey;>;
SourceFile: "ReducingKeyIterator.java"
NestMembers:
  org.apache.cassandra.io.sstable.ReducingKeyIterator$1
InnerClasses:
  org.apache.cassandra.io.sstable.ReducingKeyIterator$1
  public abstract Reducer = org.apache.cassandra.utils.MergeIterator$Reducer of org.apache.cassandra.utils.MergeIterator