Package org.linuxforhealth.fhir.schema.app

Class SchemaPrinter

java.lang.Object

org.linuxforhealth.fhir.schema.app.SchemaPrinter

public class SchemaPrinter
extends java.lang.Object

The SchemaPrinter outputs the DDL into three files - schema.sql, grants.sql, stored-procedures.sql.
These files are generated using Mock java.sql objects. These mock objects follow through the code to
capture the SQL as it flows to the prospective database:

• Build a JDBCTarget with PrintConnection
• The Database Tools builds the schema retrieving a PreparedStatement, CallableStatement or Statement from the PrintConnection
• The PrintConnection passes a PrintPreparedStatement, PrintCallableStatement, PrintStatement
• As the prepareStatement, execute or executeQuery are executed, the SQL passed is put into the commands or stored procedures map.
• the results, after the full schema generation, is printed out to console or files

For real work, use Main.

To run this code, build the jar (fhir-database-utils and fhir-persistence-schema)
java -cp ./fhir-database-utils.jar:fhir-persistence-schema.jar org.linuxforhealth.fhir.schema.app.SchemaPrinter [--to-file]

Without to-file, the output is the current System.out else it's schema.sql, grants.sql and stored-procedures.sql of
the current directory.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) class	SchemaPrinter.PrintCallableStatement
(package private) class	SchemaPrinter.PrintConnection
(package private) class	SchemaPrinter.PrintPreparedStatement
(package private) class	SchemaPrinter.PrintResultSet
(package private) class	SchemaPrinter.PrintStatement

Field Summary

Fields

Modifier and Type	Field	Description
java.io.PrintStream	out
java.io.PrintStream	outGrants
java.io.PrintStream	outStoredProcedure

Constructor Summary

Constructors

Constructor	Description
SchemaPrinter(boolean toFile, SchemaType schemaType)	constructor that switches behavior toFile our output stream.

Method Summary

Modifier and Type	Method	Description
void	addCommand(java.lang.String sql)	process each sql so it can be 'cleaned' before putting into the linked map.
static void	main(java.lang.String[] args)
void	print()	prints the schema out to two locations (sometimes the same printstream
void	printGrants()	prints the grants
void	process()	processes through using a fake connection.
void	processApplyGrants()

Methods inherited from class java.lang.Object

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

Field Detail

out

public java.io.PrintStream out

outStoredProcedure

public java.io.PrintStream outStoredProcedure

outGrants

public java.io.PrintStream outGrants

Constructor Detail

SchemaPrinter

public SchemaPrinter(boolean toFile,
                     SchemaType schemaType)
              throws java.io.FileNotFoundException

constructor that switches behavior toFile our output stream.

Parameters:

toFile -

schemaType -

Throws:

java.io.FileNotFoundException

Method Detail

addCommand

public void addCommand(java.lang.String sql)

process each sql so it can be 'cleaned' before putting into the linked map.

process

public void process()

processes through using a fake connection.

processApplyGrants

public void processApplyGrants()

printGrants

public void printGrants()

prints the grants

print

public void print()

prints the schema out to two locations (sometimes the same printstream

main

public static void main(java.lang.String[] args)