Package org.teiid.core.util

Class ExternalizeUtil

java.lang.Object

org.teiid.core.util.ExternalizeUtil

public class ExternalizeUtil
extends Object

Utilities used by Externalizable classes to read/write objects from ObjectInput/ObjectOutput instances.

Method Summary

Modifier and Type	Method	Description
static <T> T[]	readArray(ObjectInput in, Class<T> type)	Reads an array of String that was written to the output by this utility class
static <T extends Enum<T>> T	readEnum(ObjectInput in, Class<T> clazz, T defaultVal)
static List<?>	readList(ObjectInput in)
static <T> List<T>	readList(ObjectInput in, Class<T> type)	Reads a List that was written by this utility class.
static <K,V> Map<K,V>	readMap(ObjectInput in)	Reads a Map that was written by this utility class
static String[]	readStringArray(ObjectInput in)
static void	writeArray(ObjectOutput out, Object[] array)	Writes an array to the output.
static void	writeCollection(ObjectOutput out, Collection<?> coll)	Writes a Collection to the output using its Iterator.
static void	writeEnum(ObjectOutput out, Enum<?> value)
static void	writeList(ObjectOutput out, List<?> coll)
static void	writeMap(ObjectOutput out, Map<?,?> map)	Writes the key-value pairs of the given map to the output.

Methods inherited from class java.lang.Object

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

Method Detail

writeArray

public static void writeArray(ObjectOutput out,
                              Object[] array)
                       throws IOException

Writes an array to the output.

Parameters:

out - the output instance

array - reference to an array. Can be null.

Throws:

IOException

writeCollection

public static void writeCollection(ObjectOutput out,
                                   Collection<?> coll)
                            throws IOException

Writes a Collection to the output using its Iterator.

Parameters:

out - the output instance

coll - reference to a Collection. Can be null.

Throws:

IOException

writeList

public static void writeList(ObjectOutput out,
                             List<?> coll)
                      throws IOException

Throws:

IOException

writeMap

public static void writeMap(ObjectOutput out,
                            Map<?,?> map)
                     throws IOException

Writes the key-value pairs of the given map to the output.

Parameters:

out - the output instance

map - reference to a Map. Can be null.

Throws:

IOException

readArray

public static <T> T[] readArray(ObjectInput in,
                                Class<T> type)
                         throws IOException,
                                ClassNotFoundException

Reads an array of String that was written to the output by this utility class

Parameters:

in -

Returns:

a non-null String[]

Throws:

IOException

ClassNotFoundException

readStringArray

public static String[] readStringArray(ObjectInput in)
                                throws IOException,
                                       ClassNotFoundException

Throws:

IOException

ClassNotFoundException

readList

public static <T> List<T> readList(ObjectInput in,
                                   Class<T> type)
                            throws IOException,
                                   ClassNotFoundException

Reads a List that was written by this utility class.

Parameters:

in -

Returns:

a non-null List

Throws:

IOException

ClassNotFoundException

readList

public static List<?> readList(ObjectInput in)
                        throws IOException,
                               ClassNotFoundException

Throws:

IOException

ClassNotFoundException

readMap

public static <K,V> Map<K,V> readMap(ObjectInput in)
                                          throws IOException,
                                                 ClassNotFoundException

Reads a Map that was written by this utility class

Parameters:

in -

Returns:

a non-null Map

Throws:

IOException

ClassNotFoundException

writeEnum

public static void writeEnum(ObjectOutput out,
                             Enum<?> value)
                      throws IOException

Throws:

IOException

readEnum

public static <T extends Enum<T>> T readEnum(ObjectInput in,
                                             Class<T> clazz,
                                             T defaultVal)
                                      throws IOException

Throws:

IOException