Skip navigation links

oracle.javatools.db.diff
Class DiffEngine

java.lang.Object
oracle.javatools.db.diff.DiffEngine

public final class DiffEngine

extends java.lang.Object

Engine that can diff two objects and return the results.

Since:

10.1.3

Constructor Summary

DiffEngine()

DiffEngine(boolean allowMultipleDiffers)

DiffEngine(DiffEngine existing)
Create a new diff engine with the same differs as an existing one

Method Summary

void	cancelDiff()
void	checkProgress()
DiffEngine	copy() Creates a copy of this diff engine with all the same comparators and differs registered.
DiffContext	diff(java.util.List a, java.util.List b, ResultSet r, DiffContext dc) Diff the given object lists with the prepared context.
DiffContext	diff(java.lang.Object[] a, java.lang.Object[] b) Diff the given objects.
DiffContext	diff(java.lang.Object[] a, java.lang.Object[] b, ResultSet r) Diff the given object arrays.
DiffContext	diff(java.lang.Object[] a, java.lang.Object[] b, ResultSet r, DiffContext dc) Diff the given object arrays with the prepared context.
DiffContext	diff(java.lang.Object a, java.lang.Object b) Diff the given objects.
DiffContext	diff(java.lang.Object a, java.lang.Object b, ResultSet r, DiffContext dc) Diff the given objects with the prepared context.
java.util.Comparator	getComparator(java.lang.Class type)
void	registerComparator(java.util.Comparator cmp, java.lang.Class c) Registers a Comparator for a given object type.
void	registerDiffer(Differ d, java.lang.Class c) Registers a given Differ implementation with an object type (to be used by only this DiffEngine instance)
void	registerListDiffer(Differ d, java.lang.Class c) Registers a given Differ implementation with a List of object type (to be used by only this DiffEngine instances)
static <T> T	searchMap(java.util.Map<java.lang.Class,T> map, java.lang.Class type) Iteratively searchs a map of classes to <T> for the given class.

Methods inherited from class java.lang.Object

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

Constructor Detail

DiffEngine

public DiffEngine()

DiffEngine

public DiffEngine(boolean allowMultipleDiffers)

DiffEngine

public DiffEngine(DiffEngine existing)

Create a new diff engine with the same differs as an existing one

Method Detail

diff

public DiffContext diff(java.lang.Object a,
                        java.lang.Object b)

Diff the given objects.

diff

public DiffContext diff(java.lang.Object[] a,
                        java.lang.Object[] b)

Diff the given objects.

diff

public DiffContext diff(java.lang.Object a,
                        java.lang.Object b,
                        ResultSet r,
                        DiffContext dc)

Diff the given objects with the prepared context.

diff

public DiffContext diff(java.lang.Object[] a,
                        java.lang.Object[] b,
                        ResultSet r)

Diff the given object arrays. Used to compare ordered lists of children.

diff

public DiffContext diff(java.lang.Object[] a,
                        java.lang.Object[] b,
                        ResultSet r,
                        DiffContext dc)

Diff the given object arrays with the prepared context. Used to compare ordered lists of children.

diff

public DiffContext diff(java.util.List a,
                        java.util.List b,
                        ResultSet r,
                        DiffContext dc)

Diff the given object lists with the prepared context. Used to compare ordered lists of children.

registerDiffer

public void registerDiffer(Differ d,
                           java.lang.Class c)

Registers a given Differ implementation with an object type (to be used by only this DiffEngine instance)

registerListDiffer

public void registerListDiffer(Differ d,
                               java.lang.Class c)

Registers a given Differ implementation with a List of object type (to be used by only this DiffEngine instances)

registerComparator

public void registerComparator(java.util.Comparator cmp,
                               java.lang.Class c)

Registers a Comparator for a given object type. Comparators are used to compare the contents and ordering of a child list to decide whether children have been added, removed or reordered. The registered Comparator will only be used by this DiffEngine instance.

searchMap

public static <T> T searchMap(java.util.Map<java.lang.Class,T> map,
                              java.lang.Class type)

Iteratively searchs a map of classes to <T> for the given class. If the given class isn't found it's imlemented interfaces are searched for. If they are not found, the superclass is recursively checked. If nothing is registered for the Object class, null is returned.

getComparator

public java.util.Comparator getComparator(java.lang.Class type)

checkProgress

public void checkProgress()

cancelDiff

public void cancelDiff()

copy

public DiffEngine copy()

Creates a copy of this diff engine with all the same comparators and differs registered.

Skip navigation links