Package com.google.spanner.v1

Class PlanNode.ChildLink

  • All Implemented Interfaces:
    com.google.protobuf.Message, com.google.protobuf.MessageLite, com.google.protobuf.MessageLiteOrBuilder, com.google.protobuf.MessageOrBuilder, PlanNode.ChildLinkOrBuilder, Serializable
    Enclosing class:
    PlanNode
    public static final class PlanNode.ChildLink
extends com.google.protobuf.GeneratedMessageV3
implements PlanNode.ChildLinkOrBuilder
     Metadata associated with a parent-child relationship appearing in a
 [PlanNode][google.spanner.v1.PlanNode].
    Protobuf type google.spanner.v1.PlanNode.ChildLink
    See Also:
    Serialized Form

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      static class  PlanNode.ChildLink.Builder
      Metadata associated with a parent-child relationship appearing in a [PlanNode][google.spanner.v1.PlanNode].

      • 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 CHILD_INDEX_FIELD_NUMBER  
      static int TYPE_FIELD_NUMBER  
      static int VARIABLE_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 Detail

      • newInstance

        protected 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

      • getType

        public String getType()
         The type of the link. For example, in Hash Joins this could be used to
 distinguish between the build child and the probe child, or in the case
 of the child being an output variable, to represent the tag associated
 with the output variable.
        string type = 2;
        Specified by:
        getType in interface PlanNode.ChildLinkOrBuilder
        Returns:
        The type.

      • getTypeBytes

        public com.google.protobuf.ByteString getTypeBytes()
         The type of the link. For example, in Hash Joins this could be used to
 distinguish between the build child and the probe child, or in the case
 of the child being an output variable, to represent the tag associated
 with the output variable.
        string type = 2;
        Specified by:
        getTypeBytes in interface PlanNode.ChildLinkOrBuilder
        Returns:
        The bytes for type.

      • getVariable

        public String getVariable()
         Only present if the child node is [SCALAR][google.spanner.v1.PlanNode.Kind.SCALAR] and corresponds
 to an output variable of the parent node. The field carries the name of
 the output variable.
 For example, a `TableScan` operator that reads rows from a table will
 have child links to the `SCALAR` nodes representing the output variables
 created for each column that is read by the operator. The corresponding
 `variable` fields will be set to the variable names assigned to the
 columns.
        string variable = 3;
        Specified by:
        getVariable in interface PlanNode.ChildLinkOrBuilder
        Returns:
        The variable.

      • getVariableBytes

        public com.google.protobuf.ByteString getVariableBytes()
         Only present if the child node is [SCALAR][google.spanner.v1.PlanNode.Kind.SCALAR] and corresponds
 to an output variable of the parent node. The field carries the name of
 the output variable.
 For example, a `TableScan` operator that reads rows from a table will
 have child links to the `SCALAR` nodes representing the output variables
 created for each column that is read by the operator. The corresponding
 `variable` fields will be set to the variable names assigned to the
 columns.
        string variable = 3;
        Specified by:
        getVariableBytes in interface PlanNode.ChildLinkOrBuilder
        Returns:
        The bytes for variable.

      • 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 IOException
        Specified by:
        writeTo in interface com.google.protobuf.MessageLite
        Overrides:
        writeTo in class com.google.protobuf.GeneratedMessageV3
        Throws:
        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​(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 PlanNode.ChildLink parseFrom​(ByteBuffer data)
                                    throws com.google.protobuf.InvalidProtocolBufferException
        Throws:
        com.google.protobuf.InvalidProtocolBufferException

      • parseFrom

        public static PlanNode.ChildLink parseFrom​(ByteBuffer data,
                                           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                                    throws com.google.protobuf.InvalidProtocolBufferException
        Throws:
        com.google.protobuf.InvalidProtocolBufferException

      • parseFrom

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

      • parseFrom

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

      • parseFrom

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

      • parseFrom

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

      • parseFrom

        public static PlanNode.ChildLink parseFrom​(com.google.protobuf.CodedInputStream input,
                                           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                                    throws IOException
        Throws:
        IOException

      • newBuilderForType

        public PlanNode.ChildLink.Builder newBuilderForType()
        Specified by:
        newBuilderForType in interface com.google.protobuf.Message
        Specified by:
        newBuilderForType in interface com.google.protobuf.MessageLite

      • toBuilder

        public PlanNode.ChildLink.Builder toBuilder()
        Specified by:
        toBuilder in interface com.google.protobuf.Message
        Specified by:
        toBuilder in interface com.google.protobuf.MessageLite

      • newBuilderForType

        protected PlanNode.ChildLink.Builder newBuilderForType​(com.google.protobuf.GeneratedMessageV3.BuilderParent parent)
        Specified by:
        newBuilderForType in class com.google.protobuf.GeneratedMessageV3

      • getParserForType

        public com.google.protobuf.Parser<PlanNode.ChildLink> 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 PlanNode.ChildLink getDefaultInstanceForType()
        Specified by:
        getDefaultInstanceForType in interface com.google.protobuf.MessageLiteOrBuilder
        Specified by:
        getDefaultInstanceForType in interface com.google.protobuf.MessageOrBuilder