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public interface Calculator
A calculator calculate a number for PivotField
Method Summary | |
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java.lang.Number |
calculate(java.util.Collection<java.lang.Object> data)
Returns a calculated number for each data cell. |
java.lang.String |
getType()
This is the key to identify whether two Calculator carry the same behavior so they can be cascaded. |
Method Detail |
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java.lang.Number calculate(java.util.Collection<java.lang.Object> data)
java.lang.String getType()
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