Package com.streambase.sb.operator.parameter

Class SBPropertyDescriptor.SingleValueSetter

java.lang.Object

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

Enclosing class:

SBPropertyDescriptor

protected abstract static class SBPropertyDescriptor.SingleValueSetter
extends Object

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	Description
protected	SingleValueSetter()

Method Summary

Modifier and Type	Method	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 String	getSingleValue(SBPropertyDescriptor pd, Map<String,List<Object>> params)
String	getValue(SBPropertyDescriptor pd, Parameterizable bean)	Get value
String[]	getValues(SBPropertyDescriptor pd, Parameterizable bean)	Get array value
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.
void	set(SBPropertyDescriptor pd, Object bean, Map<String,List<Object>> params, SchemaUtil.SchemaProvider schemaProvider)	Set the param

Methods inherited from class java.lang.Object

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

Constructor Details

SingleValueSetter

protected SingleValueSetter()

Method Details

getArgs

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

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)

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

set

public void set(SBPropertyDescriptor pd,
 Object bean,
 Map<String,List<Object>> params,
 SchemaUtil.SchemaProvider schemaProvider)
         throws TypecheckException

Set the param

Parameters:

pd - a property descriptor

bean - a bean

params - parameters

schemaProvider - a schema provider

Throws:

TypecheckException - on type check exception

getValue

public String getValue(SBPropertyDescriptor pd,
 Parameterizable bean)
                throws TypecheckException

Get value

Parameters:

pd - property descriptor

bean - Java bean

Returns:

value

Throws:

TypecheckException - error accessing value

getValues

public String[] getValues(SBPropertyDescriptor pd,
 Parameterizable bean)
                   throws TypecheckException

Get array value

Parameters:

pd - property descriptor

bean - Java bean

Returns:

values

Throws:

TypecheckException - error accessing values

getSingleValue

protected String getSingleValue(SBPropertyDescriptor pd,
 Map<String,List<Object>> params)
                         throws TypecheckException

Parameters:

pd - a property descriptor

params - parameters

Returns:

the string value of the property, or null if the property is optional and omitted

Throws:

TypecheckException - on type check exception