Class TxnRequest

  • All Implemented Interfaces:
    com.google.protobuf.Message, com.google.protobuf.MessageLite, com.google.protobuf.MessageLiteOrBuilder, com.google.protobuf.MessageOrBuilder, TxnRequestOrBuilder, java.io.Serializable

    public final class TxnRequest
    extends com.google.protobuf.GeneratedMessageV3
    implements TxnRequestOrBuilder
     From google paxosdb paper:
     Our implementation hinges around a powerful primitive which we call MultiOp. All other database
     operations except for iteration are implemented as a single call to MultiOp. A MultiOp is applied atomically
     and consists of three components:
     1. A list of tests called guard. Each test in guard checks a single entry in the database. It may check
     for the absence or presence of a value, or compare with a given value. Two different tests in the guard
     may apply to the same or different entries in the database. All tests in the guard are applied and
     MultiOp returns the results. If all tests are true, MultiOp executes t op (see item 2 below), otherwise
     it executes f op (see item 3 below).
     2. A list of database operations called t op. Each operation in the list is either an insert, delete, or
     lookup operation, and applies to a single database entry. Two different operations in the list may apply
     to the same or different entries in the database. These operations are executed
     if guard evaluates to
     true.
     3. A list of database operations called f op. Like t op, but executed if guard evaluates to false.
     
    Protobuf type etcdserverpb.TxnRequest
    See Also:
    Serialized Form
    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      static class  TxnRequest.Builder
      From google paxosdb paper: Our implementation hinges around a powerful primitive which we call MultiOp.
      • Nested classes/interfaces inherited from class com.google.protobuf.GeneratedMessageV3

        com.google.protobuf.GeneratedMessageV3.BuilderParent, com.google.protobuf.GeneratedMessageV3.ExtendableBuilder<MessageType extends com.google.protobuf.GeneratedMessageV3.ExtendableMessage,​BuilderType extends com.google.protobuf.GeneratedMessageV3.ExtendableBuilder<MessageType,​BuilderType>>, com.google.protobuf.GeneratedMessageV3.ExtendableMessage<MessageType extends com.google.protobuf.GeneratedMessageV3.ExtendableMessage>, com.google.protobuf.GeneratedMessageV3.ExtendableMessageOrBuilder<MessageType extends com.google.protobuf.GeneratedMessageV3.ExtendableMessage>, com.google.protobuf.GeneratedMessageV3.FieldAccessorTable, com.google.protobuf.GeneratedMessageV3.UnusedPrivateParameter
      • Nested classes/interfaces inherited from class com.google.protobuf.AbstractMessageLite

        com.google.protobuf.AbstractMessageLite.InternalOneOfEnum
    • Field Summary

      Fields 
      Modifier and Type Field Description
      static int COMPARE_FIELD_NUMBER  
      static int FAILURE_FIELD_NUMBER  
      static int SUCCESS_FIELD_NUMBER  
      • Fields inherited from class com.google.protobuf.GeneratedMessageV3

        alwaysUseFieldBuilders, unknownFields
      • Fields inherited from class com.google.protobuf.AbstractMessage

        memoizedSize
      • Fields inherited from class com.google.protobuf.AbstractMessageLite

        memoizedHashCode
    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean equals​(java.lang.Object obj)  
      Compare getCompare​(int index)
      compare is a list of predicates representing a conjunction of terms.
      int getCompareCount()
      compare is a list of predicates representing a conjunction of terms.
      java.util.List<Compare> getCompareList()
      compare is a list of predicates representing a conjunction of terms.
      CompareOrBuilder getCompareOrBuilder​(int index)
      compare is a list of predicates representing a conjunction of terms.
      java.util.List<? extends CompareOrBuilder> getCompareOrBuilderList()
      compare is a list of predicates representing a conjunction of terms.
      static TxnRequest getDefaultInstance()  
      TxnRequest getDefaultInstanceForType()  
      static com.google.protobuf.Descriptors.Descriptor getDescriptor()  
      RequestOp getFailure​(int index)
      failure is a list of requests which will be applied when compare evaluates to false.
      int getFailureCount()
      failure is a list of requests which will be applied when compare evaluates to false.
      java.util.List<RequestOp> getFailureList()
      failure is a list of requests which will be applied when compare evaluates to false.
      RequestOpOrBuilder getFailureOrBuilder​(int index)
      failure is a list of requests which will be applied when compare evaluates to false.
      java.util.List<? extends RequestOpOrBuilder> getFailureOrBuilderList()
      failure is a list of requests which will be applied when compare evaluates to false.
      com.google.protobuf.Parser<TxnRequest> getParserForType()  
      int getSerializedSize()  
      RequestOp getSuccess​(int index)
      success is a list of requests which will be applied when compare evaluates to true.
      int getSuccessCount()
      success is a list of requests which will be applied when compare evaluates to true.
      java.util.List<RequestOp> getSuccessList()
      success is a list of requests which will be applied when compare evaluates to true.
      RequestOpOrBuilder getSuccessOrBuilder​(int index)
      success is a list of requests which will be applied when compare evaluates to true.
      java.util.List<? extends RequestOpOrBuilder> getSuccessOrBuilderList()
      success is a list of requests which will be applied when compare evaluates to true.
      com.google.protobuf.UnknownFieldSet getUnknownFields()  
      int hashCode()  
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable internalGetFieldAccessorTable()  
      boolean isInitialized()  
      static TxnRequest.Builder newBuilder()  
      static TxnRequest.Builder newBuilder​(TxnRequest prototype)  
      TxnRequest.Builder newBuilderForType()  
      protected TxnRequest.Builder newBuilderForType​(com.google.protobuf.GeneratedMessageV3.BuilderParent parent)  
      protected java.lang.Object newInstance​(com.google.protobuf.GeneratedMessageV3.UnusedPrivateParameter unused)  
      static TxnRequest parseDelimitedFrom​(java.io.InputStream input)  
      static TxnRequest parseDelimitedFrom​(java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)  
      static TxnRequest parseFrom​(byte[] data)  
      static TxnRequest parseFrom​(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)  
      static TxnRequest parseFrom​(com.google.protobuf.ByteString data)  
      static TxnRequest parseFrom​(com.google.protobuf.ByteString data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)  
      static TxnRequest parseFrom​(com.google.protobuf.CodedInputStream input)  
      static TxnRequest parseFrom​(com.google.protobuf.CodedInputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)  
      static TxnRequest parseFrom​(java.io.InputStream input)  
      static TxnRequest parseFrom​(java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)  
      static TxnRequest parseFrom​(java.nio.ByteBuffer data)  
      static TxnRequest parseFrom​(java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)  
      static com.google.protobuf.Parser<TxnRequest> parser()  
      TxnRequest.Builder toBuilder()  
      void writeTo​(com.google.protobuf.CodedOutputStream output)  
      • Methods inherited from class com.google.protobuf.GeneratedMessageV3

        canUseUnsafe, computeStringSize, computeStringSizeNoTag, emptyBooleanList, emptyDoubleList, emptyFloatList, emptyIntList, emptyLongList, getAllFields, getDescriptorForType, getField, getOneofFieldDescriptor, getRepeatedField, getRepeatedFieldCount, hasField, hasOneof, internalGetMapField, isStringEmpty, makeExtensionsImmutable, mergeFromAndMakeImmutableInternal, mutableCopy, mutableCopy, mutableCopy, mutableCopy, mutableCopy, newBooleanList, newBuilderForType, newDoubleList, newFloatList, newIntList, newLongList, parseDelimitedWithIOException, parseDelimitedWithIOException, parseUnknownField, parseUnknownFieldProto3, parseWithIOException, parseWithIOException, parseWithIOException, parseWithIOException, serializeBooleanMapTo, serializeIntegerMapTo, serializeLongMapTo, serializeStringMapTo, writeReplace, writeString, writeStringNoTag
      • Methods inherited from class com.google.protobuf.AbstractMessage

        findInitializationErrors, getInitializationErrorString, hashBoolean, hashEnum, hashEnumList, hashFields, hashLong, toString
      • Methods inherited from class com.google.protobuf.AbstractMessageLite

        addAll, addAll, checkByteStringIsUtf8, toByteArray, toByteString, writeDelimitedTo, writeTo
      • Methods inherited from class java.lang.Object

        clone, finalize, getClass, notify, notifyAll, wait, wait, wait
      • Methods inherited from interface com.google.protobuf.MessageLite

        toByteArray, toByteString, writeDelimitedTo, writeTo
      • Methods inherited from interface com.google.protobuf.MessageOrBuilder

        findInitializationErrors, getAllFields, getDescriptorForType, getField, getInitializationErrorString, getOneofFieldDescriptor, getRepeatedField, getRepeatedFieldCount, hasField, hasOneof
    • Method Detail

      • newInstance

        protected java.lang.Object newInstance​(com.google.protobuf.GeneratedMessageV3.UnusedPrivateParameter unused)
        Overrides:
        newInstance in class com.google.protobuf.GeneratedMessageV3
      • getUnknownFields

        public final com.google.protobuf.UnknownFieldSet getUnknownFields()
        Specified by:
        getUnknownFields in interface com.google.protobuf.MessageOrBuilder
        Overrides:
        getUnknownFields in class com.google.protobuf.GeneratedMessageV3
      • getDescriptor

        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor()
      • internalGetFieldAccessorTable

        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable internalGetFieldAccessorTable()
        Specified by:
        internalGetFieldAccessorTable in class com.google.protobuf.GeneratedMessageV3
      • getCompareList

        public java.util.List<Compare> getCompareList()
         compare is a list of predicates representing a conjunction of terms.
         If the comparisons succeed, then the success requests will be processed in order,
         and the response will contain their respective responses in order.
         If the comparisons fail, then the failure requests will be processed in order,
         and the response will contain their respective responses in order.
         
        repeated .etcdserverpb.Compare compare = 1;
        Specified by:
        getCompareList in interface TxnRequestOrBuilder
      • getCompareOrBuilderList

        public java.util.List<? extends CompareOrBuilder> getCompareOrBuilderList()
         compare is a list of predicates representing a conjunction of terms.
         If the comparisons succeed, then the success requests will be processed in order,
         and the response will contain their respective responses in order.
         If the comparisons fail, then the failure requests will be processed in order,
         and the response will contain their respective responses in order.
         
        repeated .etcdserverpb.Compare compare = 1;
        Specified by:
        getCompareOrBuilderList in interface TxnRequestOrBuilder
      • getCompareCount

        public int getCompareCount()
         compare is a list of predicates representing a conjunction of terms.
         If the comparisons succeed, then the success requests will be processed in order,
         and the response will contain their respective responses in order.
         If the comparisons fail, then the failure requests will be processed in order,
         and the response will contain their respective responses in order.
         
        repeated .etcdserverpb.Compare compare = 1;
        Specified by:
        getCompareCount in interface TxnRequestOrBuilder
      • getCompare

        public Compare getCompare​(int index)
         compare is a list of predicates representing a conjunction of terms.
         If the comparisons succeed, then the success requests will be processed in order,
         and the response will contain their respective responses in order.
         If the comparisons fail, then the failure requests will be processed in order,
         and the response will contain their respective responses in order.
         
        repeated .etcdserverpb.Compare compare = 1;
        Specified by:
        getCompare in interface TxnRequestOrBuilder
      • getCompareOrBuilder

        public CompareOrBuilder getCompareOrBuilder​(int index)
         compare is a list of predicates representing a conjunction of terms.
         If the comparisons succeed, then the success requests will be processed in order,
         and the response will contain their respective responses in order.
         If the comparisons fail, then the failure requests will be processed in order,
         and the response will contain their respective responses in order.
         
        repeated .etcdserverpb.Compare compare = 1;
        Specified by:
        getCompareOrBuilder in interface TxnRequestOrBuilder
      • getSuccessList

        public java.util.List<RequestOp> getSuccessList()
         success is a list of requests which will be applied when compare evaluates to true.
         
        repeated .etcdserverpb.RequestOp success = 2;
        Specified by:
        getSuccessList in interface TxnRequestOrBuilder
      • getSuccessOrBuilderList

        public java.util.List<? extends RequestOpOrBuilder> getSuccessOrBuilderList()
         success is a list of requests which will be applied when compare evaluates to true.
         
        repeated .etcdserverpb.RequestOp success = 2;
        Specified by:
        getSuccessOrBuilderList in interface TxnRequestOrBuilder
      • getSuccessCount

        public int getSuccessCount()
         success is a list of requests which will be applied when compare evaluates to true.
         
        repeated .etcdserverpb.RequestOp success = 2;
        Specified by:
        getSuccessCount in interface TxnRequestOrBuilder
      • getSuccess

        public RequestOp getSuccess​(int index)
         success is a list of requests which will be applied when compare evaluates to true.
         
        repeated .etcdserverpb.RequestOp success = 2;
        Specified by:
        getSuccess in interface TxnRequestOrBuilder
      • getSuccessOrBuilder

        public RequestOpOrBuilder getSuccessOrBuilder​(int index)
         success is a list of requests which will be applied when compare evaluates to true.
         
        repeated .etcdserverpb.RequestOp success = 2;
        Specified by:
        getSuccessOrBuilder in interface TxnRequestOrBuilder
      • getFailureList

        public java.util.List<RequestOp> getFailureList()
         failure is a list of requests which will be applied when compare evaluates to false.
         
        repeated .etcdserverpb.RequestOp failure = 3;
        Specified by:
        getFailureList in interface TxnRequestOrBuilder
      • getFailureOrBuilderList

        public java.util.List<? extends RequestOpOrBuilder> getFailureOrBuilderList()
         failure is a list of requests which will be applied when compare evaluates to false.
         
        repeated .etcdserverpb.RequestOp failure = 3;
        Specified by:
        getFailureOrBuilderList in interface TxnRequestOrBuilder
      • getFailureCount

        public int getFailureCount()
         failure is a list of requests which will be applied when compare evaluates to false.
         
        repeated .etcdserverpb.RequestOp failure = 3;
        Specified by:
        getFailureCount in interface TxnRequestOrBuilder
      • getFailure

        public RequestOp getFailure​(int index)
         failure is a list of requests which will be applied when compare evaluates to false.
         
        repeated .etcdserverpb.RequestOp failure = 3;
        Specified by:
        getFailure in interface TxnRequestOrBuilder
      • getFailureOrBuilder

        public RequestOpOrBuilder getFailureOrBuilder​(int index)
         failure is a list of requests which will be applied when compare evaluates to false.
         
        repeated .etcdserverpb.RequestOp failure = 3;
        Specified by:
        getFailureOrBuilder in interface TxnRequestOrBuilder
      • isInitialized

        public final boolean isInitialized()
        Specified by:
        isInitialized in interface com.google.protobuf.MessageLiteOrBuilder
        Overrides:
        isInitialized in class com.google.protobuf.GeneratedMessageV3
      • writeTo

        public void writeTo​(com.google.protobuf.CodedOutputStream output)
                     throws java.io.IOException
        Specified by:
        writeTo in interface com.google.protobuf.MessageLite
        Overrides:
        writeTo in class com.google.protobuf.GeneratedMessageV3
        Throws:
        java.io.IOException
      • getSerializedSize

        public int getSerializedSize()
        Specified by:
        getSerializedSize in interface com.google.protobuf.MessageLite
        Overrides:
        getSerializedSize in class com.google.protobuf.GeneratedMessageV3
      • equals

        public boolean equals​(java.lang.Object obj)
        Specified by:
        equals in interface com.google.protobuf.Message
        Overrides:
        equals in class com.google.protobuf.AbstractMessage
      • hashCode

        public int hashCode()
        Specified by:
        hashCode in interface com.google.protobuf.Message
        Overrides:
        hashCode in class com.google.protobuf.AbstractMessage
      • parseFrom

        public static TxnRequest parseFrom​(java.nio.ByteBuffer data)
                                    throws com.google.protobuf.InvalidProtocolBufferException
        Throws:
        com.google.protobuf.InvalidProtocolBufferException
      • parseFrom

        public static TxnRequest parseFrom​(java.nio.ByteBuffer data,
                                           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                                    throws com.google.protobuf.InvalidProtocolBufferException
        Throws:
        com.google.protobuf.InvalidProtocolBufferException
      • parseFrom

        public static TxnRequest parseFrom​(com.google.protobuf.ByteString data)
                                    throws com.google.protobuf.InvalidProtocolBufferException
        Throws:
        com.google.protobuf.InvalidProtocolBufferException
      • parseFrom

        public static TxnRequest parseFrom​(com.google.protobuf.ByteString data,
                                           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                                    throws com.google.protobuf.InvalidProtocolBufferException
        Throws:
        com.google.protobuf.InvalidProtocolBufferException
      • parseFrom

        public static TxnRequest parseFrom​(byte[] data)
                                    throws com.google.protobuf.InvalidProtocolBufferException
        Throws:
        com.google.protobuf.InvalidProtocolBufferException
      • parseFrom

        public static TxnRequest parseFrom​(byte[] data,
                                           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                                    throws com.google.protobuf.InvalidProtocolBufferException
        Throws:
        com.google.protobuf.InvalidProtocolBufferException
      • parseFrom

        public static TxnRequest parseFrom​(java.io.InputStream input)
                                    throws java.io.IOException
        Throws:
        java.io.IOException
      • parseFrom

        public static TxnRequest parseFrom​(java.io.InputStream input,
                                           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                                    throws java.io.IOException
        Throws:
        java.io.IOException
      • parseDelimitedFrom

        public static TxnRequest parseDelimitedFrom​(java.io.InputStream input)
                                             throws java.io.IOException
        Throws:
        java.io.IOException
      • parseDelimitedFrom

        public static TxnRequest parseDelimitedFrom​(java.io.InputStream input,
                                                    com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                                             throws java.io.IOException
        Throws:
        java.io.IOException
      • parseFrom

        public static TxnRequest parseFrom​(com.google.protobuf.CodedInputStream input)
                                    throws java.io.IOException
        Throws:
        java.io.IOException
      • parseFrom

        public static TxnRequest parseFrom​(com.google.protobuf.CodedInputStream input,
                                           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                                    throws java.io.IOException
        Throws:
        java.io.IOException
      • newBuilderForType

        public TxnRequest.Builder newBuilderForType()
        Specified by:
        newBuilderForType in interface com.google.protobuf.Message
        Specified by:
        newBuilderForType in interface com.google.protobuf.MessageLite
      • toBuilder

        public TxnRequest.Builder toBuilder()
        Specified by:
        toBuilder in interface com.google.protobuf.Message
        Specified by:
        toBuilder in interface com.google.protobuf.MessageLite
      • newBuilderForType

        protected TxnRequest.Builder newBuilderForType​(com.google.protobuf.GeneratedMessageV3.BuilderParent parent)
        Specified by:
        newBuilderForType in class com.google.protobuf.GeneratedMessageV3
      • getDefaultInstance

        public static TxnRequest getDefaultInstance()
      • parser

        public static com.google.protobuf.Parser<TxnRequest> parser()
      • getParserForType

        public com.google.protobuf.Parser<TxnRequest> getParserForType()
        Specified by:
        getParserForType in interface com.google.protobuf.Message
        Specified by:
        getParserForType in interface com.google.protobuf.MessageLite
        Overrides:
        getParserForType in class com.google.protobuf.GeneratedMessageV3
      • getDefaultInstanceForType

        public TxnRequest getDefaultInstanceForType()
        Specified by:
        getDefaultInstanceForType in interface com.google.protobuf.MessageLiteOrBuilder
        Specified by:
        getDefaultInstanceForType in interface com.google.protobuf.MessageOrBuilder