com.ibm.di.server
Class Compare

java.lang.Object
  com.ibm.di.server.Compare

public class Compare
extends Object

This class is used for making comparisons of entries and attributes.

Constructor Summary

Compare()

Method Summary

static Entry	applyMods(Entry source, ArrayList<ModificationItem> mods) Applies a given ArrayList of modifications to an Entry object and returns it.
String	compactDN(String p1) Removes spaces in a given string, including those at the string beginning, end and those following a comma character.
ArrayList<ModificationItem>	compareEntries(Entry a, Entry b) Compares two given Entry objects and returns an ArrayList with the differences (attributes that were in one of the entries and not the other).
boolean	differs(Attribute a, Attribute b) Compares two Attribute objects and returns if they are different.
boolean	equalsDN(String p1, String p2) Checks if two strings are equal.
void	join(Attribute a, Attribute b) Adds all values from the second Attribute object to the first one (if they are not already present).
boolean	vectorContains(Object val, Vector<Object> v, boolean dn) Return true if and only if a Vector contains a value, and remove that value from the Vector.

Methods inherited from class java.lang.Object

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

Constructor Detail

Compare

public Compare()

Method Detail

join

public void join(Attribute a,
                 Attribute b)
          throws Exception

Adds all values from the second Attribute object to the first one (if they are not already present).

Parameters:

a - the attribute that will accept additional values

b - the attribute whose values will be added to the first one

Throws:

Exception - if a problem occurs

differs

public boolean differs(Attribute a,
                       Attribute b)
                throws Exception

Compares two Attribute objects and returns if they are different.

Parameters:

a - first Attribute object

b - second Attribute object

Returns:

true if the attributes are different, otherwise false

Throws:

Exception - if a problem occurs

vectorContains

public boolean vectorContains(Object val,
                              Vector<Object> v,
                              boolean dn)

Return true if and only if a Vector contains a value, and remove that value from the Vector. Look into the values if they are complex. If dn is true, also compact Strings (by removing some spaces).

Parameters:

val - an Object that will be searched

v - the vector whose contents will be checked

dn - determines whether strings need to be compact or not

Returns:

true if the vector contains the given Object, otherwise false

compareEntries

public ArrayList<ModificationItem> compareEntries(Entry a,
                                                  Entry b)
                                           throws Exception

Compares two given Entry objects and returns an ArrayList with the differences (attributes that were in one of the entries and not the other).

Parameters:

a - first Entry object

b - second Entry object

Returns:

a list of the differences found during the comparison

Throws:

Exception - if a problem occurs

applyMods

public static Entry applyMods(Entry source,
                              ArrayList<ModificationItem> mods)

Applies a given ArrayList of modifications to an Entry object and returns it.

Parameters:

source - a source Entry

mods - ArrayList of modifications

Returns:

the updated Entry

equalsDN

public boolean equalsDN(String p1,
                        String p2)

Checks if two strings are equal. Insignificant space characters are ignored.

Parameters:

p1 - first string

p2 - second string

Returns:

true it the strings are equal, otherwise false

compactDN

public String compactDN(String p1)

Removes spaces in a given string, including those at the string beginning, end and those following a comma character.

Parameters:

p1 - the String to be processed

Returns:

the comacted String