EclipseLink Core 4.0.2 · org.eclipse.persistence.internal.identitymaps.CacheIdComparator

Access	Constructor and Description
pack-priv	CacheIdComparator()

Method Summary

Modifier and Type	Method and Description
public int	compare(CacheId the first object to be compared. id1, CacheId the second object to be compared. id2) Implements java.util.Comparator.compare. Compares its two arguments for order.
private int	compareByteArrays(byte[] array1, byte[] array2)
private int	compareCharArrays(char[] array1, char[] array2)
private int	compareObjectArrays(Object[] array1, Object[] array2)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

CacheIdComparator	back to summary
pack-priv CacheIdComparator()

Method Detail

compare back to summary

compare	back to summary
public int compare(CacheId id1, CacheId id2) Implements java.util.Comparator.compare. Doc from java.util.Comparator.compare. Compares its two arguments for order. Returns a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second. The implementor must ensure that `signum(compare(x, y)) == -signum(compare(y, x))` for all `x` and `y`. (This implies that `compare(x, y)` must throw an exception if and only if `compare(y, x)` throws an exception.) The implementor must also ensure that the relation is transitive: `((compare(x, y)>0) && (compare(y, z)>0))` implies `compare(x, z)>0`. Finally, the implementor must ensure that `compare(x, y)==0` implies that `signum(compare(x, z))==signum(compare(y, z))` for all `z`. Parameters id1:CacheId the first object to be compared. id2:CacheId the second object to be compared. Returns:int a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second. Annotations @Override

public int compare(CacheId id1, CacheId id2)

Implements java.util.Comparator.compare.

Doc from java.util.Comparator.compare.

Compares its two arguments for order. Returns a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second.

The implementor must ensure that signum(compare(x, y)) == -signum(compare(y, x)) for all x and y. (This implies that compare(x, y) must throw an exception if and only if compare(y, x) throws an exception.)

The implementor must also ensure that the relation is transitive: ((compare(x, y)>0) && (compare(y, z)>0)) implies compare(x, z)>0.

Finally, the implementor must ensure that compare(x, y)==0 implies that signum(compare(x, z))==signum(compare(y, z)) for all z.

Parameters

id1:CacheId: the first object to be compared.
id2:CacheId: the second object to be compared.

Returns:int

a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second.

Annotations

@Override

compareByteArrays	back to summary
private int compareByteArrays(byte[] array1, byte[] array2)

compareCharArrays	back to summary
private int compareCharArrays(char[] array1, char[] array2)

compareObjectArrays	back to summary
private int compareObjectArrays(Object[] array1, Object[] array2)

pack-priv Class CacheIdComparator

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Constructor Detail

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