Package com.i2group.disco.infostore.importer

Class TemplateReferenceExtractor

java.lang.Object

com.i2group.disco.infostore.importer.TemplateReferenceExtractor

public final class TemplateReferenceExtractor
extends Object

A utility class for determining whether strings in templates are references to values in columns (specified by $(COLUMN_NAME)) or constant values.

If a string in a template element starts with any sequence other than $(, it is treated as a constant.

Since:

9.0

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	TemplateReferenceExtractor.ColumnReferenceOrConstantValue	A descriptor of whether a string in a template is a constant value (in which case it requires no further processing), or a reference to a value in a column (in which case it should be substituted for the value).

Constructor Summary

Constructors

Constructor	Description
TemplateReferenceExtractor()

Method Summary

Modifier and Type	Method	Description
List<TemplateReferenceExtractor.ColumnReferenceOrConstantValue>	determineColumnReferencesInTemplate(String keysTemplate)	For a template that is represented by a comma-separated list of strings, determines which strings are column references and which are constant values.
List<TemplateReferenceExtractor.ColumnReferenceOrConstantValue>	determineColumnReferencesInTemplate(List<String> keysTemplate)	For a template that is represented by a Java List of strings, determines which strings are column references and which are constant values.

Methods inherited from class java.lang.Object

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

Constructor Details

TemplateReferenceExtractor

public TemplateReferenceExtractor()

Method Details

determineColumnReferencesInTemplate

public List<TemplateReferenceExtractor.ColumnReferenceOrConstantValue> determineColumnReferencesInTemplate(String keysTemplate)

For a template that is represented by a comma-separated list of strings, determines which strings are column references and which are constant values.

This method relies on Java String.split(String) functionality. It is not suitable for implementations where the template strings themselves contain commas. In such cases, form the template into a list of suitable elements and call determineColumnReferencesInTemplate(List) instead.

Parameters:

keysTemplate - A String that contains the comma-separated list.

Returns:

A TemplateReferenceExtractor.ColumnReferenceOrConstantValue for each string in the comma-separated list.

determineColumnReferencesInTemplate

public List<TemplateReferenceExtractor.ColumnReferenceOrConstantValue> determineColumnReferencesInTemplate(List<String> keysTemplate)

For a template that is represented by a Java List of strings, determines which strings are column references and which are constant values.

Parameters:

keysTemplate - The Strings that make up the template.

Returns:

A TemplateReferenceExtractor.ColumnReferenceOrConstantValue for each string in the List.