Datasnap.Provider

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Defines classes that implement DataSnap provider functionality, such as providers, resolvers, packet datasets, SQL resolvers, and related functionality.

Package	dsnap250.bpl

Classes

EDSWriter	EDSWriter is the exception class for errors that occur when creating data packets to represent the data or metadata in a dataset.
IProviderContainer	Is an interface that is internally used within the TCustomProvider class for adding provider registration and unregistration support.
TBaseProvider	TBaseProvider is a base class for all providers that represent the data in a dataset.
TCustomPacketWriter	Is the base class for all DataSnap packet writers.
TCustomProvider	TCustomProvider is the base class for data providers.
TCustomResolver	TCustomResolver is the base class for components that apply updates on behalf of a provider.
TDataPacketWriter	Implements a DataSnap packet record writer.
TDataSetProvider	TDataSetProvider provides data from a dataset and resolves updates to that dataset or its database server.
TDataSetResolver	TDataSetResolver applies updates to a dataset on behalf of a provider.
TLocalAppServer	Represents the implementation of the IAppServer interface.
TPacketDataSet	TPacketDataSet represents a data packet or delta packet that is used by a provider.
TProvider (deprecated)	TProvider provides data to and applies updates from a client dataset.
TSQLResolver	TSQLResolver applies updates to a database server on behalf of a provider.
TUpdateTree	TUpdateTree stores information about a delta packet on behalf of a resolver.

Routines

GetObjectProperty	Returns the property class instance (as TObject) of the given PropName property.
GetStringProperty	Returns the property value (as String) of the given PropName property.
VarArrayFromStrings	Creates a Variant array that contains the strings in a TStrings object.

Types

PPutFieldInfo	PPutFieldInfo is a pointer type to a TPutFieldInfo record.
TAfterUpdateRecordEvent	TAfterUpdateRecordEvent represents the type of events that occur when the associated resolver has just updated a record.
TBeforeCommitEvent	TBeforeCommitEvent represents the procedure type for the events that occur before committing a dataset.
TBeforeUpdateRecordEvent	TBeforeUpdateRecordEvent represents the procedure type for the events that occur before a record is updated.
TDataRequestEvent	Represents the function type for the events that occur when a provider calls its DataRequest method.
TGetDSProps	Represents the procedure type for the events that occur when the provider adds additional information to a data packet it is creating.
TGetParamsEvent	Represents the procedure type for the events that occur when the provider adds attributes to the dataset.
TGetRecordOption	TGetRecordOption enumerates the types of information that can be added to data packets.
TGetRecordOptions	TGetRecordOptions is used to decide what type of information is added to data packets.
TGetTableNameEvent	Represents the procedure type for the events that occur when a resolver initializes its information about the table to which it applies updates.
TInfoArray	TInfoArray is an array of TPutFieldInfo records.
TOnValidate	Represents the procedure type for the events that occur when the provider applies updates contained in a Delta packet.
TProviderDataEvent	Represents the procedure type for the events that occur when the provider applies updates or retrieves data.
TProviderOption	TProviderOption and TProviderOptions influence the type of information that is communicated between client datasets and provider components.
TProviderOptions	TProviderOptions influences the type of information that is communicated between client datasets and provider components.
TPutFieldInfo	TPutFieldInfo contains information about a field.
TPutFieldProc	Allows to decide the procedure used when adding a new field to a dataset.
TResolverErrorEvent	Represents the procedure type for the events that occur when the provider fails to update a record.
TResolverResponse	TResolverResponse indicates the action a resolver component should take after an OnUpdateError event handler handles an update error.

Variables

InformixLob	Resolves Informix rather than Oracle BLOB and CLOB fields.
MetaDataOption	Specifies the options available when retrieving metadata from a target database.
ResetOption	Is a bit-wise constant flag that indicates that the data packet should be reset.
XMLOption	Is a bit-wise constant flag that signifies that the data packet format is XML.
XMLUTF8Option	Is a bit-wise constant flag that signifies that the data packet format is XML with UTF8 character encoding.