net.esper.client.soda
Class MinRowExpression

java.lang.Object
  extended by net.esper.client.soda.ExpressionBase
      extended by net.esper.client.soda.MinRowExpression
All Implemented Interfaces:
Serializable, Expression

public class MinRowExpression
extends ExpressionBase

Minimum-value per-row expression (not aggregating) determines the minimum value among a set of values.

See Also:
Serialized Form

Constructor Summary
MinRowExpression()
          Ctor - for use to create an expression tree, without child expression.
MinRowExpression(Expression exprOne, Expression exprTwo, Expression... moreExpressions)
          Ctor.
MinRowExpression(String propertyOne, String propertyTwo, String[] moreProperties)
          Ctor.
 
Method Summary
 MinRowExpression add(Expression expression)
          Add an expression to include in the computation.
 MinRowExpression add(Object object)
          Add a constant to include in the computation.
 MinRowExpression add(String propertyName)
          Add a property to include in the computation.
 void toEQL(StringWriter writer)
          Renders the expressions and all it's child expression, in full tree depth, as a string in language syntax.
 
Methods inherited from class net.esper.client.soda.ExpressionBase
addChild, getChildren
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

MinRowExpression

public MinRowExpression()
Ctor - for use to create an expression tree, without child expression.

Use add methods to add child expressions to acts upon.


MinRowExpression

public MinRowExpression(String propertyOne,
                        String propertyTwo,
                        String[] moreProperties)
Ctor.

Parameters:
propertyOne - the name of the property providing a value to determine the minimum of
propertyTwo - the name of the property providing a value to determine the minimum of
moreProperties - optional additional properties to consider

MinRowExpression

public MinRowExpression(Expression exprOne,
                        Expression exprTwo,
                        Expression... moreExpressions)
Ctor.

Parameters:
exprOne - provides a value to determine the maximum of
exprTwo - provides a value to determine the maximum of
moreExpressions - optional additional values to consider
Method Detail

add

public MinRowExpression add(Object object)
Add a constant to include in the computation.

Parameters:
object - constant to add
Returns:
expression

add

public MinRowExpression add(Expression expression)
Add an expression to include in the computation.

Parameters:
expression - to add
Returns:
expression

add

public MinRowExpression add(String propertyName)
Add a property to include in the computation.

Parameters:
propertyName - is the name of the property
Returns:
expression

toEQL

public void toEQL(StringWriter writer)
Description copied from interface: Expression
Renders the expressions and all it's child expression, in full tree depth, as a string in language syntax.

Parameters:
writer - is the output to use