com.ibm.portal.streaming.json
Class JsonParserReader

java.lang.Object
  java.io.Reader
      com.ibm.portal.streaming.json.JsonParserReader

All Implemented Interfaces:

JsonStream, Streamable, Writable, java.io.Closeable, java.lang.Readable, java.nio.channels.Channel

public abstract class JsonParserReader
extends java.io.Reader
implements Writable, Streamable, java.nio.channels.Channel, JsonStream

Implementation of a pull parser to decode JSON data as defined in RFC 4627. The JSON object will be represented as a sequence of JsonParserReader.Entry objects (similar to the concept of the ZipInputStream). Each JsonParserReader.Entry denotes a syntactical entity of the JSON object, e.g. the start or end of an object, an array or a value. Depending on the type of the entry the content can be accessed via the DataInput interface or as a character stream via the Reader interface on either the entry or the parser.

Since:

7.0.0.1

Nested Class Summary

static class	JsonParserReader.Entry Represents an entry in this input stream.
static class	JsonParserReader.TYPE Type of the next entry

Field Summary

Fields inherited from class java.io.Reader

lock

Fields inherited from interface com.ibm.portal.streaming.json.JsonStream

CONTENT_TYPE_JSON

Constructor Summary

JsonParserReader()

Method Summary

abstract void	closeEntry() Closes the entry and positions the stream for the next entry
abstract JsonParserReader.Entry	getNextEntry() Returns the next entry and closes a previous entry if required

Methods inherited from class java.io.Reader

close, mark, markSupported, read, read, read, read, ready, reset, skip

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.ibm.utilities.streams.Writable

write

Methods inherited from interface com.ibm.utilities.streams.Streamable

write

Methods inherited from interface java.nio.channels.Channel

close, isOpen

Constructor Detail

JsonParserReader

public JsonParserReader()

Method Detail

closeEntry

public abstract void closeEntry()
                         throws java.io.IOException

Closes the entry and positions the stream for the next entry

Throws:

java.io.IOException - if an I/O error has occurred

getNextEntry

public abstract JsonParserReader.Entry getNextEntry()
                                             throws java.io.IOException

Returns the next entry and closes a previous entry if required

Returns:

the next entry or null if no next entry exists

Throws:

java.io.IOException - if an I/O error has occurred