com.espertech.esper.client.soda

Class DotExpressionItem

java.lang.Object

com.espertech.esper.client.soda.DotExpressionItem

All Implemented Interfaces:

Serializable

public class DotExpressionItem
extends Object
implements Serializable

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

Each item represent an individual chain item and may either be a method name with method parameters, or a (nested) property name typically with an empty list of parameters or for mapped properties a non-empty list of parameters.

See Also:

Serialized Form

Property Summary

Type	Property and Description
boolean	is Gets the value of the property property.

Constructor Summary

Constructors

Constructor and Description
DotExpressionItem() Ctor.
DotExpressionItem(String name, List<Expression> parameters, boolean isProperty) Ctor.

Method Summary

Modifier and Type	Method and Description
String	getName() Returns method name or nested property name.
List<Expression>	getParameters() Returns method parameters or parameters for mapped properties or empty list if this item represents a simple nested property.
boolean	isProperty() Gets the value of the property property.
protected static void	render(List<DotExpressionItem> chain, StringWriter writer, boolean prefixDot) Render to EPL.
void	setName(String name) Sets the method name or nested property name.
void	setParameters(List<Expression> parameters) Sets method parameters or parameters for mapped properties or empty list if this item represents a simple nested property.
void	setProperty(boolean property) Set to true if this dot-item is a property name.

Methods inherited from class java.lang.Object

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

Property Detail

is

public boolean isProperty

Gets the value of the property property.

Constructor Detail

DotExpressionItem

public DotExpressionItem()

Ctor.

DotExpressionItem

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

Ctor.

Parameters:

name - the property (or nested property) or method name

parameters - are optional and should only be provided if this chain item is a method; Parameters are expressions for parameters to the method (use only for methods and not for properties unless mapped property).

isProperty - true if this is a nested property name

Method Detail

getName

public String getName()

Returns method name or nested property name.

Returns:

method name or nested property name

setName

public void setName(String name)

Sets the method name or nested property name.

Parameters:

name - method name or nested property name to set

getParameters

public List<Expression> getParameters()

Returns method parameters or parameters for mapped properties or empty list if this item represents a simple nested property.

Returns:

parameter expressions

setParameters

public void setParameters(List<Expression> parameters)

Sets method parameters or parameters for mapped properties or empty list if this item represents a simple nested property.

Parameters:

parameters - expressions to set

isProperty

public boolean isProperty()

Gets the value of the property property.

setProperty

public void setProperty(boolean property)

Set to true if this dot-item is a property name.

Parameters:

property - true for property, false for method

render

protected static void render(List<DotExpressionItem> chain,
                             StringWriter writer,
                             boolean prefixDot)

Render to EPL.

Parameters:

chain - chain to render

writer - writer to output to

prefixDot - indicator whether to prefix with "."