Package uk.org.ogsadai.common

This package provides a set of common classes and interfaces supporting all the other OGSA-DAI components.

See:
Description

Interface Summary

BlockBuffer	An interface for buffering sequences of blocks and then retrieving the sequence as a single aggregate block.
BlockMaker	A BlockMaker is used to retrieve a sequence of blocks of some type.
BlockReader	This is an interface to read blocks of input data from.
BlockWriter	This is an interface used for writing blocks of output data.
Queue	A subset of methods from the java.util.Queue interface introduced in Java 5.0.
SecurityContextProvider	A callback interface for any class that can provide uk.org.ogsadai.common.SecurityContext objects.

Class Summary

Base64	A wrapper for an Axis Base64 encoder.
Base64InputStream	A class that supports Base64 encoding of data from a java.io.InputStream.
Base64Reader	A java.io.Reader that wraps a java.io.InputStream and Base64 encodes its contents.
BinaryLob	An implementation of java.sql.Blob for use in OGSA-DAI the java.sql.ResultSet implementation.
BlockReaderInputStream	An java.io.InputStream that wraps a BlockReader.
BlockReaderReader	A java.io.Reader that wraps a uk.org.ogsadai.common.BlockReader.
BlockWriterWriter	A java.io.Writer that wraps a uk.org.ogsadai.common.BlockWriter.
CharacterLob	An implementation of java.sql.Clob for use in OGSA-DAI the java.sql.ResultSet implementation.
CircularBuffer	A thread-safe, fixed-sized, circular buffer that can be written to by a producer and read from by a consumer.
DocumentValidator	A DocumentValidator validates a Document in an application-specific way.
FIFOQueue	Array-based implementation of the uk.org.ogsadai.common.Queue interface, using a first-in-first-out (FIFO) ordering of elements.
MemoryUtilities	Utilities for managing, checking and logging memory usage.
NetUtilities	Contains helper methods relating to the java.net package, such as methods to read data from URLs.
SecurityContext	A wrapper for org.ietf.jgss Grid security credential objects.
SimpleBlockBuffer	A simple BlockBuffer for appending sequences of java.lang.String, byte[] or org.w3c.dom.Node objects.
StringUtils	Miscellaneous string utilities.
UniqueName	Provides unique names for use by the system.

Exception Summary

BlockMakerException	A uk.org.ogsadai.common.BlockMaker encountered a problem when accessing its blocks.
DocumentValidationException	Exception raised when some document is deemed to be invalid, for some application-specific reason.
GridCredentialAccessException	Exception raised when a problem is encountered when trying to access a Grid credential.
MissingSystemPropertyException	Exception thrown when a value for an OGSA-DAI system property cannot be found.
NoGridCredentialException	Exception raised when no Grid credential can be found.
OutOfMemoryException	Risk of a java.lang.OutOfMemory error occurring.
ReaderClosedException	An attempt was made to access a closed java.io.Reader.
UnsupportedBlockException	An unsupported block was encountered.

Package uk.org.ogsadai.common Description

This package provides a set of common classes and interfaces supporting all the other OGSA-DAI components.