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java.lang.Object org.apache.torque.om.ObjectKey
public abstract class ObjectKey
This class can be used to uniquely identify an object within an application. There are four subclasses: StringKey, NumberKey, and DateKey, and ComboKey which is a Key made up of a combination ofthe first three.
Field Summary | |
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protected java.lang.Object |
key
The underlying key value. |
Constructor Summary | |
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protected |
ObjectKey()
Initializes the internal key value to null . |
Method Summary | |
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void |
appendTo(java.lang.StringBuffer sb)
Appends a String representation of the key to a buffer. |
int |
compareTo(java.lang.Object obj)
Implements the compareTo method. |
java.lang.Object |
getValue()
Get the underlying object. |
int |
hashCode()
Returns the hashcode of the underlying value (key), if key is not null. |
abstract void |
setValue(java.lang.String s)
Reset the underlying object using a String. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected java.lang.Object key
Constructor Detail |
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protected ObjectKey()
null
.
Method Detail |
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public int hashCode()
hashCode
in class java.lang.Object
int
valuepublic java.lang.Object getValue()
public void appendTo(java.lang.StringBuffer sb)
sb
- a StringBuffer
public int compareTo(java.lang.Object obj)
compareTo
in interface java.lang.Comparable
obj
- the object to compare to this object
public abstract void setValue(java.lang.String s) throws TorqueException
s
- a String
value
TorqueException
- if an error occurs
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