Module com.blackhillsoftware.zutil

Package com.blackhillsoftware.zutil.io

Class ZFileX

java.lang.Object

com.blackhillsoftware.zutil.io.ZFileX

public class ZFileX
extends Object

Call IBM JZOS ZFile methods without a compile time dependency on the JZOS jar. These methods will fail if IBMJZOS is not available at runtime. They are convenience methods to allow code using JZOS to be written and compiled without reference to the IBMJZOS jar. Only a selected few methods are available - primarily methods that are likely to be useful with the RecordReader/Writer and TextRecordReader/Writer classes. Other methods may be added as required.

Constructor Summary

Constructors

Constructor	Description
ZFileX()

Method Summary

Modifier and Type	Method	Description
static boolean	ddExists(String ddname)	Wrap com.ibm.jzos.ZFile.ddExists(String ddname)
static boolean	dsExists(String dataset)	Wrap com.ibm.jzos.ZFile.dsExists(String dataset)
static boolean	exists(String filename)	Wrap com.ibm.jzos.ZFile.exists(String filename)

Methods inherited from class java.lang.Object

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

Constructor Details

ZFileX

public ZFileX()

Method Details

ddExists

public static boolean ddExists(String ddname)
                        throws IOException

Wrap com.ibm.jzos.ZFile.ddExists(String ddname)

Parameters:

ddname - the DD name

Returns:

true if the DD name exists

Throws:

IOException - if an I/O error occurs

exists

public static boolean exists(String filename)
                      throws IOException

Wrap com.ibm.jzos.ZFile.exists(String filename)

Parameters:

filename - the dataset name using C fopen() conventions for referring to a dataset

Returns:

true if the dataset exists

Throws:

IOException - if an I/O error occurs

dsExists

public static boolean dsExists(String dataset)
                        throws IOException

Wrap com.ibm.jzos.ZFile.dsExists(String dataset)

Parameters:

dataset - the dataset name

Returns:

true if the dataset exists

Throws:

IOException - if an I/O error occurs