com.streambase.sb.operator.parameter

Class SBPropertyDescriptor.SingleValueSetter

java.lang.Object

com.streambase.sb.operator.parameter.SBPropertyDescriptor.Setter

com.streambase.sb.operator.parameter.SBPropertyDescriptor.SingleValueSetter

Enclosing class:

SBPropertyDescriptor

protected abstract static class SBPropertyDescriptor.SingleValueSetter
extends SBPropertyDescriptor.Setter

This abstract specialization of Setter assumes that the property type will have a single value (which currently accounts for all property types except string lists). It extracts the value of that parameter from the map and calls an abstract parse method on it.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SingleValueSetter()

Method Summary

Modifier and Type	Method and Description
protected Object[]	getArgs(SBPropertyDescriptor pd, Map<String,List<Object>> params, SchemaUtil.SchemaProvider schemaProvider) Get the setter arguments for Method.invoke, consume the property values.
protected abstract Object[]	parseArgs(SBPropertyDescriptor pd, String val, SchemaUtil.SchemaProvider schemaProvider) Parse the single argument value from a string into the array of parameters to pass to the setter method.

Methods inherited from class com.streambase.sb.operator.parameter.SBPropertyDescriptor.Setter

getSingleValue, getValue, getValues, set

Methods inherited from class java.lang.Object

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

Constructor Detail

SingleValueSetter

protected SingleValueSetter()

Method Detail

getArgs

protected Object[] getArgs(SBPropertyDescriptor pd,
                           Map<String,List<Object>> params,
                           SchemaUtil.SchemaProvider schemaProvider)
                    throws TypecheckException

Description copied from class: SBPropertyDescriptor.Setter

Get the setter arguments for Method.invoke, consume the property values. Returns null to indicate that the setter should not be called (ie, if an optional parameter was omitted)

Specified by:

getArgs in class SBPropertyDescriptor.Setter

Parameters:

pd - property descriptor

params - parameters

schemaProvider - a schema provider

Returns:

null if the setter should not be called

Throws:

TypecheckException - on type check exception

parseArgs

protected abstract Object[] parseArgs(SBPropertyDescriptor pd,
                                      String val,
                                      SchemaUtil.SchemaProvider schemaProvider)
                               throws TypecheckException

Parse the single argument value from a string into the array of parameters to pass to the setter method. This can return null to skip calling the setter.

Parameters:

pd - a property descriptor

val - for the setter method

schemaProvider - a schema provider

Returns:

null if the setter should not be called

Throws:

TypecheckException - on type check exception