Package com.google.spanner.v1

Enum TransactionOptions.ReadWrite.ReadLockMode

java.lang.Object
java.lang.Enum<TransactionOptions.ReadWrite.ReadLockMode>
com.google.spanner.v1.TransactionOptions.ReadWrite.ReadLockMode
All Implemented Interfaces:
com.google.protobuf.Internal.EnumLite, com.google.protobuf.ProtocolMessageEnum, Serializable, Comparable<TransactionOptions.ReadWrite.ReadLockMode>
Enclosing class:
TransactionOptions.ReadWrite
public static enum TransactionOptions.ReadWrite.ReadLockMode extends Enum<TransactionOptions.ReadWrite.ReadLockMode> implements com.google.protobuf.ProtocolMessageEnum
 `ReadLockMode` is used to set the read lock mode for read-write
 transactions.
Protobuf enum google.spanner.v1.TransactionOptions.ReadWrite.ReadLockMode

  • Enum Constant Details

  • Field Details

    • READ_LOCK_MODE_UNSPECIFIED_VALUE

      public static final int READ_LOCK_MODE_UNSPECIFIED_VALUE
       Default value.

 If the value is not specified, the pessimistic read lock is used.
      READ_LOCK_MODE_UNSPECIFIED = 0;
      See Also:

    • PESSIMISTIC_VALUE

      public static final int PESSIMISTIC_VALUE
       Pessimistic lock mode.

 Read locks are acquired immediately on read.
      PESSIMISTIC = 1;
      See Also:

    • OPTIMISTIC_VALUE

      public static final int OPTIMISTIC_VALUE
       Optimistic lock mode.

 Locks for reads within the transaction are not acquired on read.
 Instead the locks are acquired on a commit to validate that
 read/queried data has not changed since the transaction started.
      OPTIMISTIC = 2;
      See Also:

  • Method Details

    • values

      public static TransactionOptions.ReadWrite.ReadLockMode[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.
      Returns:
      an array containing the constants of this enum type, in the order they are declared

    • valueOf

      public static TransactionOptions.ReadWrite.ReadLockMode valueOf(String name)
      Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
      Parameters:
      name - the name of the enum constant to be returned.
      Returns:
      the enum constant with the specified name
      Throws:
      IllegalArgumentException - if this enum type has no constant with the specified name
      NullPointerException - if the argument is null

    • getNumber

      public final int getNumber()
      Specified by:
      getNumber in interface com.google.protobuf.Internal.EnumLite
      Specified by:
      getNumber in interface com.google.protobuf.ProtocolMessageEnum

    • valueOf

      @Deprecated public static TransactionOptions.ReadWrite.ReadLockMode valueOf(int value)
      Deprecated.
      Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
      Parameters:
      value - the name of the enum constant to be returned.
      Returns:
      the enum constant with the specified name
      Throws:
      IllegalArgumentException - if this enum type has no constant with the specified name
      NullPointerException - if the argument is null

    • forNumber

      public static TransactionOptions.ReadWrite.ReadLockMode forNumber(int value)
      Parameters:
      value - The numeric wire value of the corresponding enum entry.
      Returns:
      The enum associated with the given numeric wire value.

    • internalGetValueMap

      public static com.google.protobuf.Internal.EnumLiteMap<TransactionOptions.ReadWrite.ReadLockMode> internalGetValueMap()

    • getValueDescriptor

      public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor()
      Specified by:
      getValueDescriptor in interface com.google.protobuf.ProtocolMessageEnum

    • getDescriptorForType

      public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType()
      Specified by:
      getDescriptorForType in interface com.google.protobuf.ProtocolMessageEnum

    • getDescriptor

      public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor()

    • valueOf

      public static TransactionOptions.ReadWrite.ReadLockMode valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc)
      Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
      Parameters:
      desc - the name of the enum constant to be returned.
      Returns:
      the enum constant with the specified name
      Throws:
      IllegalArgumentException - if this enum type has no constant with the specified name
      NullPointerException - if the argument is null