public class QueryExpression extends GroupExpression
SearchTupleSet
. The data group name is provided
by a String-valued sub-expression.m_group
Constructor and Description |
---|
QueryExpression()
Create a new QueryExpression.
|
QueryExpression(java.lang.String group)
Create a new QueryExpression.
|
Modifier and Type | Method and Description |
---|---|
java.lang.Object |
get(Tuple t)
By default, throws an UnsupportedOperationException.
|
java.lang.String |
getName()
Get the name of this function.
|
java.lang.Class |
getType(Schema s)
Returns the type that this expression evaluates to when tuples
with the given Schema are provided as input.
|
addParameter, getGroup, getParameterCount, toString
addChildListeners, addExpressionListener, expressionChanged, fireExpressionChange, getBoolean, getDouble, getFloat, getInt, getLong, hasListeners, removeChildListeners, removeExpressionListener, visit
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
addExpressionListener, getBoolean, getDouble, getFloat, getInt, getLong, removeExpressionListener, visit
public QueryExpression()
public QueryExpression(java.lang.String group)
group
- @param 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)
Copyright ? 2013 Regents of the University of California