Package com.espertech.esper.common.client.soda

Class DotExpression

java.lang.Object

com.espertech.esper.common.client.soda.ExpressionBase

com.espertech.esper.common.client.soda.DotExpression

All Implemented Interfaces:

Expression, Serializable

public class DotExpression
extends ExpressionBase

Dot-expresson is for use in "(inner_expression).dot_expression".

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
DotExpression()	Ctor.
DotExpression(Expression innerExpression)	Ctor.

Method Summary

Modifier and Type	Method	Description
void	add(DotExpressionItem item)	Add a method to the chain of methods after the dot.
void	add(String methodName, List<Expression> parameters)	Add a method to the chain of methods after the dot.
void	add(String name, List<Expression> parameters, boolean isProperty)	Add a method to the chain of methods after the dot, indicating the this segment is a property and does not need parenthesis and won't have paramaters.
List<DotExpressionItem>	getChain()	Returns the method chain of all methods after the dot.
ExpressionPrecedenceEnum	getPrecedence()	Returns precedence.
void	toPrecedenceFreeEPL(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 com.espertech.esper.common.client.soda.ExpressionBase

addChild, getChildren, getTreeObjectName, renderAggregation, setChildren, setTreeObjectName, toEPL, toPrecedenceFreeEPL, toPrecedenceFreeEPL

Methods inherited from class java.lang.Object

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

Constructor Details

DotExpression

public DotExpression()

Ctor.

DotExpression

public DotExpression(Expression innerExpression)

Ctor.

Parameters:

innerExpression - the expression in parenthesis

Method Details

add

public void add(DotExpressionItem item)

Add a method to the chain of methods after the dot.

Parameters:

item - item to add

add

public void add(String methodName,
 List<Expression> parameters)

Add a method to the chain of methods after the dot.

Parameters:

methodName - to add

parameters - parameters to method

add

public void add(String name,
 List<Expression> parameters,
 boolean isProperty)

Add a method to the chain of methods after the dot, indicating the this segment is a property and does not need parenthesis and won't have paramaters.

Parameters:

name - name

parameters - parameter expressions

isProperty - property flag

getChain

public List<DotExpressionItem> getChain()

Returns the method chain of all methods after the dot.

Returns:

method name ane list of parameters

getPrecedence

public ExpressionPrecedenceEnum getPrecedence()

Description copied from interface: Expression

Returns precedence.

Returns:

precedence

toPrecedenceFreeEPL

public void toPrecedenceFreeEPL(StringWriter writer)

Description copied from class: ExpressionBase

Renders the expressions and all it's child expression, in full tree depth, as a string in language syntax.

Specified by:

toPrecedenceFreeEPL in class ExpressionBase

Parameters:

writer - is the output to use