com.espertech.esper.common.client.soda

Class DotExpressionItem

java.lang.Object

com.espertech.esper.common.client.soda.DotExpressionItem

All Implemented Interfaces:

java.io.Serializable

public class DotExpressionItem
extends java.lang.Object
implements java.io.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

Constructor Summary

Constructors

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

Method Summary

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

Constructor Detail

DotExpressionItem

public DotExpressionItem()

Ctor.

DotExpressionItem

public DotExpressionItem(java.lang.String name,
                         java.util.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 java.lang.String getName()

Returns method name or nested property name.

Returns:

method name or nested property name

setName

public void setName(java.lang.String name)

Sets the method name or nested property name.

Parameters:

name - method name or nested property name to set

getParameters

public java.util.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(java.util.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()

Returns true if this dot-item is a property name.

Returns:

true for property, false for method

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(java.util.List<DotExpressionItem> chain,
                             java.io.StringWriter writer,
                             boolean prefixDot)

Render to EPL.

Parameters:

chain - chain to render

writer - writer to output to

prefixDot - indicator whether to prefix with "."