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org.jdaemon.era.java
Class AbstractJavaCube  

java.lang.Object
  java.util.AbstractCollection
      org.jdaemon.era.AbstractCube
          org.jdaemon.era.java.AbstractJavaCube

All Implemented Interfaces:

java.util.Collection, org.jdaemon.era.Cube, java.lang.Iterable

Direct Known Subclasses:

AbstractIndexedJavaCube, ListJavaCube

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public abstract class AbstractJavaCube

extends org.jdaemon.era.AbstractCube

AbstractJavaCube JavaCubes delegate their getAttribute() and getComparator() methods to their descriptor object (which will be a JavaCubeDescriptor rather than a simple CubeDescriptor). This is because the data structures supporting these methods will be invariant across all cubes having the same descriptor.

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Nested Class Summary

 

Nested classes inherited from class org.jdaemon.era.AbstractCube

 

Field Summary

 

Fields inherited from class org.jdaemon.era.AbstractCube

 

Fields inherited from interface org.jdaemon.era.Cube

EQUAL, GREATER, GREATER_OR_EQUAL, LAST_OPERAND, LESS, LESS_OR_EQUAL

 

Constructor Summary

AbstractJavaCube()

 

Method Summary
java.lang.Object	getAttribute(java.lang.String attribute, java.lang.Object datum)           Get the value of an individual attribute of an object contained by this cube
java.util.Comparator	getComparator(java.lang.String attribute)           Get a comparator object which orders an attribute of this cube The default implementation returns a default comparator which assumes the attribute is of a type that implements Comparable.
abstract  org.jdaemon.era.CubeDescriptor	getDescriptor()           Get metadata describing this cube
abstract  java.util.Iterator	iterator()           Get an interator over all data items contained by this cube

 

Methods inherited from class org.jdaemon.era.AbstractCube

addAll, constrain, constrain, getAttributeSet, getMax, getMin, getSum, groupBy, size, union

 

Methods inherited from class java.util.AbstractCollection

add, addAll, clear, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray, toString

 

Methods inherited from class java.lang.Object

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

 

Methods inherited from interface java.util.Collection

add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, remove, removeAll, retainAll, toArray, toArray

 

Constructor Detail

AbstractJavaCube

public AbstractJavaCube()

Method Detail

getAttribute

public java.lang.Object getAttribute(java.lang.String attribute,
                                     java.lang.Object datum)

Description copied from class: org.jdaemon.era.AbstractCube

Get the value of an individual attribute of an object contained by this cube

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getComparator

public java.util.Comparator getComparator(java.lang.String attribute)

Description copied from class: org.jdaemon.era.AbstractCube

Get a comparator object which orders an attribute of this cube The default implementation returns a default comparator which assumes the attribute is of a type that implements Comparable.

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getDescriptor

public abstract org.jdaemon.era.CubeDescriptor getDescriptor()

Description copied from class: org.jdaemon.era.AbstractCube

Get metadata describing this cube

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iterator

public abstract java.util.Iterator iterator()

Description copied from class: org.jdaemon.era.AbstractCube

Get an interator over all data items contained by this cube

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