| Methods Summary |
|---|
| public java.util.Comparator | getAscending()
return new Comparator() {
public int compare(Object o1, Object o2) {
if (o1 instanceof Comparable) {
return ((Comparable) o1).compareTo(o2);
} else {
String s1 = o1.toString();
String s2 = o2.toString();
return s1.compareTo(s2);
}
}
};
|
| public java.util.Comparator | getAscending(java.lang.String anExpression)
return new Comparator() {
private ValueStack stack = ValueStackFactory.getFactory().createValueStack();
public int compare(Object o1, Object o2) {
// Get value for first object
stack.push(o1);
Object v1 = stack.findValue(anExpression);
stack.pop();
// Get value for second object
stack.push(o2);
Object v2 = stack.findValue(anExpression);
stack.pop();
// Ensure non-null
if (v1 == null) {
v1 = "";
}
if (v2 == null) {
v2 = "";
}
// Compare them
if (v1 instanceof Comparable && v1.getClass().equals(v2.getClass())) {
return ((Comparable) v1).compareTo(v2);
} else {
String s1 = v1.toString();
String s2 = v2.toString();
return s1.compareTo(s2);
}
}
};
|
| public java.util.Comparator | getComparator(java.lang.String anExpression, boolean ascending)
if (ascending) {
return getAscending(anExpression);
} else {
return getDescending(anExpression);
}
|
| public java.util.Comparator | getDescending()
return new Comparator() {
public int compare(Object o1, Object o2) {
if (o2 instanceof Comparable) {
return ((Comparable) o2).compareTo(o1);
} else {
String s1 = o1.toString();
String s2 = o2.toString();
return s2.compareTo(s1);
}
}
};
|
| public java.util.Comparator | getDescending(java.lang.String anExpression)
return new Comparator() {
private ValueStack stack = ValueStackFactory.getFactory().createValueStack();
public int compare(Object o1, Object o2) {
// Get value for first object
stack.push(o1);
Object v1 = stack.findValue(anExpression);
stack.pop();
// Get value for second object
stack.push(o2);
Object v2 = stack.findValue(anExpression);
stack.pop();
// Ensure non-null
if (v1 == null) {
v1 = "";
}
if (v2 == null) {
v2 = "";
}
// Compare them
if (v2 instanceof Comparable && v1.getClass().equals(v2.getClass())) {
return ((Comparable) v2).compareTo(v1);
} else {
String s1 = v1.toString();
String s2 = v2.toString();
return s2.compareTo(s1);
}
}
};
|
