public class GroupSizeFunction extends GroupExpression
m_group
Constructor and Description |
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GroupSizeFunction()
Create a new, uninitialized GroupSizeFunction.
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GroupSizeFunction(java.lang.String group)
Create a new GroupSizeFunction using the given data group name
as the Function parameter.
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Modifier and Type | Method and Description |
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java.lang.Object |
get(Tuple t)
By default, throws an UnsupportedOperationException.
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double |
getDouble(Tuple t)
By default, throws an UnsupportedOperationException.
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float |
getFloat(Tuple t)
By default, throws an UnsupportedOperationException.
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int |
getInt(Tuple t)
By default, throws an UnsupportedOperationException.
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long |
getLong(Tuple t)
By default, throws an UnsupportedOperationException.
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java.lang.String |
getName()
Get the name of this function.
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java.lang.Class |
getType(Schema s)
Returns the type that this expression evaluates to when tuples
with the given Schema are provided as input.
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addParameter, getGroup, getParameterCount, toString
addChildListeners, addExpressionListener, expressionChanged, fireExpressionChange, getBoolean, hasListeners, removeChildListeners, removeExpressionListener, visit
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
addExpressionListener, getBoolean, removeExpressionListener, visit
public GroupSizeFunction()
public GroupSizeFunction(java.lang.String group)
group
- the data group name to use as a parameterpublic java.lang.String getName()
Function
Function.getName()
public java.lang.Class getType(Schema s)
Expression
public java.lang.Object get(Tuple t)
AbstractExpression
get
in interface Expression
get
in class AbstractExpression
t
- the input TupleExpression.get(prefuse.data.Tuple)
public double getDouble(Tuple t)
AbstractExpression
getDouble
in interface Expression
getDouble
in class AbstractExpression
t
- the input TupleExpression.getDouble(prefuse.data.Tuple)
public float getFloat(Tuple t)
AbstractExpression
getFloat
in interface Expression
getFloat
in class AbstractExpression
t
- the input TupleExpression.getFloat(prefuse.data.Tuple)
public int getInt(Tuple t)
AbstractExpression
getInt
in interface Expression
getInt
in class AbstractExpression
t
- the input TupleExpression.getInt(prefuse.data.Tuple)
public long getLong(Tuple t)
AbstractExpression
getLong
in interface Expression
getLong
in class AbstractExpression
t
- the input TupleExpression.getLong(prefuse.data.Tuple)
Copyright ? 2013 Regents of the University of California