public interface Processor<T extends Context>
AbstractParser
.
When parsing an input, uniVocity-parsers will obtain the RowProcessor from CommonParserSettings.getRowProcessor()
, and
delegate each parsed row to rowProcessed(String[], Context)
.
Before parsing the first row, the parser will invoke the processStarted(Context)
method.
By this time the input buffer will be already loaded and ready to be consumed.
After parsing the last row, all resources are closed and the processing stops. Only after the processEnded(Context)
is called so you
can perform any additional housekeeping you might need.
More control and information over the parsing process are provided by the Context
object.
uniVocity-parsers provides many useful default implementations of this interface in the package com.univocity.parsers.common.processor
, namely:
RowListProcessor
: convenience class for storing the processed rows into a list.ObjectRowProcessor
: used for processing rows and executing conversions of parsed values to objects using instances of Conversion
ObjectRowListProcessor
: convenience class for rows of converted objects using ObjectRowProcessor
into a list.AbstractMasterDetailProcessor
: used for reading inputs where records are organized in a master-detail fashion (with a master element that contains a list of associated elements) AbstractMasterDetailListProcessor
: convenience class for storing MasterDetailRecord
created by instances created by AbstractMasterDetailProcessor
into a list AbstractBeanProcessor
: used for automatically create and populate javabeans annotated with the annotations provided in package com.univocity.parsers.annotations
AbstractBeanListProcessor
: convenience class for storing all javabeans created by AbstractBeanProcessor
into a listAbstractParser
,
CommonParserSettings
,
ParsingContext
,
Context
Modifier and Type | Method and Description |
---|---|
void |
processEnded(T context)
This method will by invoked by the parser once, after the parsing process stopped and all resources were closed.
|
void |
processStarted(T context)
This method will by invoked by the parser once, when it is ready to start processing the input.
|
void |
rowProcessed(java.lang.String[] row,
T context)
Invoked by the parser after all values of a valid record have been processed.
|
void processStarted(T context)
context
- A contextual object with information and controls over the current state of the parsing processvoid rowProcessed(java.lang.String[] row, T context)
row
- the data extracted by the parser for an individual record. Note that:
CommonSettings.setSkipEmptyLines(boolean)
Format.setComment(char)
to '\0'context
- A contextual object with information and controls over the current state of the parsing processvoid processEnded(T context)
It will always be called by the parser: in case of errors, if the end of the input us reached, or if the user stopped the process manually using Context.stop()
.
context
- A contextual object with information and controls over the state of the parsing process