software.amazon.ion

Interface IonLoader

public interface IonLoader

Loads Ion data in the form of datagrams. These methods parse the input in its entirety to identify problems immediately. In contrast, an IonReader will parse one top-level value at a time, and is better suited for streaming protocols or large inputs.

WARNING: This interface should not be implemented or extended by code outside of this library.

Implementations of this interface are safe for use by multiple threads.

See Also:

IonReader

Method Summary

Modifier and Type	Method and Description
IonCatalog	getCatalog() Gets the IonCatalog being used by this loader.
IonSystem	getSystem() Gets the IonSystem from which this loader was created.
IonDatagram	load(byte[] ionData) Loads a block of Ion data into a single datagram, detecting whether it's text or binary data.
IonDatagram	load(File ionFile) Loads an entire file of Ion data into a single datagram, detecting whether it's text or binary data.
IonDatagram	load(InputStream ionData) Loads an entire stream of Ion data into a single datagram, detecting whether it's text or binary data.
IonDatagram	load(Reader ionText) Loads a stream of Ion text into a single datagram.
IonDatagram	load(String ionText) Loads Ion text in its entirety.

Method Detail

getSystem

IonSystem getSystem()

Gets the IonSystem from which this loader was created.

Returns:

the system instance; not null.

getCatalog

IonCatalog getCatalog()

Gets the IonCatalog being used by this loader.

Returns:

a catalog; not null.

load

IonDatagram load(File ionFile)
          throws IonException,
                 IOException

Loads an entire file of Ion data into a single datagram, detecting whether it's text or binary data.

Parameters:

ionFile - a file containing Ion data.

Returns:

a datagram containing all the values in the file; not null.

Throws:

IonException - if there's a syntax error in the Ion content.

IOException - if reading from the specified file results in an IOException.

load

IonDatagram load(String ionText)
          throws IonException

Loads Ion text in its entirety.

Parameters:

ionText - must not be null.

Returns:

a datagram containing the input values; not null.

Throws:

NullPointerException - if ionText is null.

IonException - if there's a syntax error in the Ion content.

load

IonDatagram load(Reader ionText)
          throws IonException,
                 IOException

Loads a stream of Ion text into a single datagram.

The specified reader remains open after this method returns.

Because this library performs its own buffering, it's recommended that you avoid adding additional buffering to the given stream.

Parameters:

ionText - the reader from which to read Ion text.

Returns:

a datagram containing all the elements on the input stream; not null.

Throws:

NullPointerException - if ionText is null.

IonException - if there's a syntax error in the Ion content.

IOException - if reading from the specified input stream results in an IOException.

load

IonDatagram load(byte[] ionData)
          throws IonException

Loads a block of Ion data into a single datagram, detecting whether it's text or binary data.

This method will auto-detect and uncompress GZIPped Ion data.

Parameters:

ionData - may be either Ion binary data, or UTF-8 Ion text. This method assumes ownership of the array and may modify it at will.

Returns:

a datagram containing all the values on the input stream; not null.

Throws:

NullPointerException - if ionData is null.

IonException - if there's a syntax error in the Ion content.

load

IonDatagram load(InputStream ionData)
          throws IonException,
                 IOException

Loads an entire stream of Ion data into a single datagram, detecting whether it's text or binary data.

The specified stream remains open after this method returns.

This method will auto-detect and uncompress GZIPped Ion data.

Because this library performs its own buffering, it's recommended that you avoid adding additional buffering to the given stream.

Parameters:

ionData - the stream from which to read Ion data.

Returns:

a datagram containing all the values on the input stream; not null.

Throws:

NullPointerException - if ionData is null.

IonException - if there's a syntax error in the Ion content.

IOException - if reading from the specified input stream results in an IOException.