Package io.higson.runtime.decoder

Class CascadeDecoder

java.lang.Object

io.higson.runtime.engine.core.decoder.StandardDecoder

io.higson.runtime.decoder.CascadeDecoder

All Implemented Interfaces:

ValueDecoder

public class CascadeDecoder
extends StandardDecoder

Decoder that is used internally to decode and call Higson parameters and functions.

Author:

przemek hertel

Constructor Summary

Constructors

Constructor	Description
CascadeDecoder(HigsonEngine engine)	defauld cascade constructor

Method Summary

Modifier and Type	Method	Description
Object	cascadeCall(String functionCode, ParamContext ctx)	calls function using HigsonEngine that was passed in constructor
Object	cascadeCall(String functionCode, Type<?> type, ParamContext ctx)	calls function using HigsonEngine that was passed in constructor.
Object	cascadeFlowCall(String flowCode, ParamContext ctx)	invokes flow using HigsonEngine that was passed in constructor.
ValueHolder[]	cascadeGet(String parameterCode, ParamContext ctx)	invokes parameter using HigsonEngine that was passed in constructor
ValueHolder	cascadeGet(String parameterCode, Type<?> type, ParamContext ctx)	invokes parameter using HigsonEngine that was passed in constructor.
ValueHolder	cascadeGetHolder(String parameterCode, ParamContext ctx)	invokes parameter using HigsonEngine that was passed in constructor and returns the holder of the selected output as it is, without converting it to any simple type.
MultiValue[]	cascadeGetMultiValues(String parameterCode, ParamContext ctx)	invokes parameter using HigsonEngine that was passed in constructor
Object	cascadeUtilCall(String functionCode, ParamContext ctx)
ValueHolder	decode(String text, Type<?> type, ParamContext ctx)	decodes given text to specific ValueHolder.

Methods inherited from class java.lang.Object

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

Constructor Details

CascadeDecoder

public CascadeDecoder(HigsonEngine engine)

defauld cascade constructor

Parameters:

engine - Implementation of HigsonEngine that is used to call decoded parameters and functions

Method Details

decode

public ValueHolder decode(String text,
 Type<?> type,
 ParamContext ctx)

decodes given text to specific ValueHolder. If text contains special prefixes $f or $p then function/parameter code is extracted from text and called using HigsonEngine. If text does NOT contain special prefixes, then decoding is passed to StandardDecoder.decode(String, Type, ParamContext)

Specified by:

decode in interface ValueDecoder

Overrides:

decode in class StandardDecoder

Parameters:

text - contains value to decode, for example:

• simple text
• 1234
• 2018-01-15 09:10:11
• $f higson.test.function
• $p higson.test.param
• $u gt(path, 20)

type - implementation of Type that will be used to convert result of parameter/function (if text contains special prefixes $f or $p) or simple value from text argument

ctx - implementation of ParamContext that is passed to parameter/function invocation

Returns:

specific implementation of ValueHolder containing decoded value

See Also:

• TypeDecoder
• Type

cascadeCall

public Object cascadeCall(String functionCode,
 ParamContext ctx)

calls function using HigsonEngine that was passed in constructor

Parameters:

functionCode - cascade function code (without $f) that will be called. Code examples:

• higson.example.fun
• higson.example.fun(1, 2)
• higson.example.fun(ctx:policy.insurer.age, 7)

ctx - implementation of ParamContext that is passed to function invocation

Returns:

raw result of function invocation

See Also:

• ParamContext
• HigsonEngine.call(String, ParamContext, Object...)

cascadeFlowCall

public Object cascadeFlowCall(String flowCode,
 ParamContext ctx)

invokes flow using HigsonEngine that was passed in constructor.

Parameters:

flowCode - cascade parameter code (without $w) that will be invoked. Code examples:

• higson.example.flow
• higson.example.flow[flowKey]

ctx - implementation of ParamContext that is passed to flow invocation

Returns:

result of flow invocation FlowResult or result of flow invocation for specific flowKey

See Also:

• (String, ParamContext)

cascadeUtilCall

public Object cascadeUtilCall(String functionCode,
 ParamContext ctx)

cascadeCall

public Object cascadeCall(String functionCode,
 Type<?> type,
 ParamContext ctx)

calls function using HigsonEngine that was passed in constructor. If function result is a simple type then it is converted to specific ValueHolder from passed type

Parameters:

functionCode - cascade function code (without $f) that will be called. Code examples:

• higson.example.fun
• higson.example.fun(1, 2)
• higson.example.fun(ctx:policy.insurer.age, 7)

type - implementation of Type that will be used to convert function result if returned object is simple type

ctx - implementation of ParamContext that is passed to function invocation

Returns:

converted result of function invocation, if function returns simple value, raw function result otherwise

See Also:

• ValueHolder
• Type
• cascadeCall(String, ParamContext)

cascadeGet

public ValueHolder cascadeGet(String parameterCode,
 Type<?> type,
 ParamContext ctx)

invokes parameter using HigsonEngine that was passed in constructor. If parameter result is a simple type then it is converted to specific ValueHolder from passed type

Parameters:

parameterCode - cascade parameter code (without $p) that will be invoked. Code examples:

• higson.example.param
• higson.example.param[1]
• higson.example.param[factor]

type - implementation of Type that will be used to convert parameter result if returned object is simple type

ctx - implementation of ParamContext that is passed to parameter invocation

Returns:

converted result of parameter invocation, if parameter returns simple value, raw parameter result otherwise

See Also:

• ValueHolder
• Type
• cascadeGet(String, ParamContext)

cascadeGetHolder

public ValueHolder cascadeGetHolder(String parameterCode,
 ParamContext ctx)

invokes parameter using HigsonEngine that was passed in constructor and returns the holder of the selected output as it is, without converting it to any simple type. Useful for callers that store the value untyped.

Parameters:

parameterCode - cascade parameter code (without $p) that will be invoked. Code examples:

• higson.example.param
• higson.example.param[1]
• higson.example.param[factor]

ctx - implementation of ParamContext that is passed to parameter invocation

Returns:

instance of ValueHolder or null if the parameter returned no value

See Also:

• ValueHolder

cascadeGet

public ValueHolder[] cascadeGet(String parameterCode,
 ParamContext ctx)

invokes parameter using HigsonEngine that was passed in constructor

Parameters:

parameterCode - cascade parameter code (without $p) that will be invoked. Code examples:

• higson.example.param
• higson.example.param[1]
• higson.example.param[factor]

ctx - implementation of ParamContext that is passed to parameter invocation

Returns:

instance of ValueHolder

See Also:

• ValueHolder
• Type
• cascadeGet(String, ParamContext)

cascadeGetMultiValues

public MultiValue[] cascadeGetMultiValues(String parameterCode,
 ParamContext ctx)

invokes parameter using HigsonEngine that was passed in constructor

Parameters:

parameterCode - cascade parameter code (without $p) that will be invoked. Code examples:

• higson.example.param
• higson.example.param[1]
• higson.example.param[factor]

ctx - implementation of ParamContext that is passed to parameter invocation

Returns:

instance of MultiValue

See Also:

• cascadeGet(String, ParamContext)