com.espertech.esper.compiler.internal.util

Class EPCompilerImpl

java.lang.Object

com.espertech.esper.compiler.internal.util.EPCompilerImpl

All Implemented Interfaces:

EPCompiler, EPCompilerSPI

public class EPCompilerImpl
extends Object
implements EPCompilerSPI

Constructor Summary

Constructors

Constructor and Description
EPCompilerImpl()

Method Summary

Modifier and Type	Method and Description
com.espertech.esper.common.client.EPCompiled	compile(com.espertech.esper.common.client.module.Module module, CompilerArguments arguments) Compiles a module object model and returns the byte code for deployment into a runtime.
com.espertech.esper.common.client.EPCompiled	compile(String epl, CompilerArguments arguments) Compiles EPL and returns the byte code for deployment into a runtime.
com.espertech.esper.common.client.EPCompiled	compileQuery(com.espertech.esper.common.client.soda.EPStatementObjectModel fireAndForgetEPLQueryModel, CompilerArguments arguments) Compiles fire-and-forget query object model for execution by the runtime.
com.espertech.esper.common.client.EPCompiled	compileQuery(String fireAndForgetEPLQuery, CompilerArguments arguments) Compiles a single fire-and-forget query for execution by the runtime.
com.espertech.esper.common.client.soda.EPStatementObjectModel	eplToModel(String stmtText, com.espertech.esper.common.client.configuration.Configuration configuration) Parse the single-statement EPL and return a statement object model.
EPCompilerSPIExpression	expressionCompiler(com.espertech.esper.common.client.configuration.Configuration configuration)
com.espertech.esper.common.client.module.Module	parseModule(String eplModuleText) Parse the module text returning the module object model.
com.espertech.esper.common.client.module.Module	readModule(File file) Read the module by reading the text file and return the module.
com.espertech.esper.common.client.module.Module	readModule(InputStream stream, String uri) Read the input stream and return the module.
com.espertech.esper.common.client.module.Module	readModule(String resource, ClassLoader classLoader) Read the resource by opening from classpath and return the module.
com.espertech.esper.common.client.module.Module	readModule(URL url) Read the module by reading from the URL provided and return the module.
void	syntaxValidate(com.espertech.esper.common.client.module.Module module, CompilerArguments arguments) Validate the syntax of the module.

Methods inherited from class java.lang.Object

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

Constructor Detail

EPCompilerImpl

public EPCompilerImpl()

Method Detail

compileQuery

public com.espertech.esper.common.client.EPCompiled compileQuery(String fireAndForgetEPLQuery,
                                                                 CompilerArguments arguments)
                                                          throws EPCompileException

Description copied from interface: EPCompiler

Compiles a single fire-and-forget query for execution by the runtime.

Specified by:

compileQuery in interface EPCompiler

Parameters:

fireAndForgetEPLQuery - fire-and-forget query to compile

arguments - compiler arguments

Returns:

byte code

Throws:

EPCompileException - when the compilation failed

compileQuery

public com.espertech.esper.common.client.EPCompiled compileQuery(com.espertech.esper.common.client.soda.EPStatementObjectModel fireAndForgetEPLQueryModel,
                                                                 CompilerArguments arguments)
                                                          throws EPCompileException

Description copied from interface: EPCompiler

Compiles fire-and-forget query object model for execution by the runtime.

Specified by:

compileQuery in interface EPCompiler

Parameters:

fireAndForgetEPLQueryModel - fire-and-forget query to compile

arguments - compiler arguments

Returns:

byte code

Throws:

EPCompileException - when the compilation failed

compile

public com.espertech.esper.common.client.EPCompiled compile(String epl,
                                                            CompilerArguments arguments)
                                                     throws EPCompileException

Description copied from interface: EPCompiler

Compiles EPL and returns the byte code for deployment into a runtime.

Use semicolon(;) to separate multiple statements in a module.

Specified by:

compile in interface EPCompiler

Parameters:

epl - epl to compile

arguments - compiler arguments

Returns:

byte code

Throws:

EPCompileException - when the compilation failed

expressionCompiler

public EPCompilerSPIExpression expressionCompiler(com.espertech.esper.common.client.configuration.Configuration configuration)
                                           throws EPCompileException

Specified by:

expressionCompiler in interface EPCompilerSPI

Throws:

EPCompileException

eplToModel

public com.espertech.esper.common.client.soda.EPStatementObjectModel eplToModel(String stmtText,
                                                                                com.espertech.esper.common.client.configuration.Configuration configuration)
                                                                         throws EPCompileException

Description copied from interface: EPCompiler

Parse the single-statement EPL and return a statement object model.

Specified by:

eplToModel in interface EPCompiler

Parameters:

stmtText - to parse

configuration - a configuration object when available

Returns:

statement object model

Throws:

EPCompileException - when the EPL could not be parsed

parseModule

public com.espertech.esper.common.client.module.Module parseModule(String eplModuleText)
                                                            throws IOException,
                                                                   com.espertech.esper.common.client.module.ParseException

Description copied from interface: EPCompiler

Parse the module text returning the module object model.

Specified by:

parseModule in interface EPCompiler

Parameters:

eplModuleText - to parse

Returns:

module object model

Throws:

IOException - when the parser failed

com.espertech.esper.common.client.module.ParseException - when parsing of the module failed

compile

public com.espertech.esper.common.client.EPCompiled compile(com.espertech.esper.common.client.module.Module module,
                                                            CompilerArguments arguments)
                                                     throws EPCompileException

Description copied from interface: EPCompiler

Compiles a module object model and returns the byte code for deployment into a runtime.

Specified by:

compile in interface EPCompiler

Parameters:

module - module object to compile

arguments - compiler arguments

Returns:

byte code

Throws:

EPCompileException - when the compilation failed

readModule

public com.espertech.esper.common.client.module.Module readModule(InputStream stream,
                                                                  String uri)
                                                           throws IOException,
                                                                  com.espertech.esper.common.client.module.ParseException

Description copied from interface: EPCompiler

Read the input stream and return the module. It is up to the calling method to close the stream when done.

Specified by:

readModule in interface EPCompiler

Parameters:

stream - to read

uri - uri of the module

Returns:

module module

Throws:

IOException - when the io operation failed

com.espertech.esper.common.client.module.ParseException - when parsing of the module failed

readModule

public com.espertech.esper.common.client.module.Module readModule(File file)
                                                           throws IOException,
                                                                  com.espertech.esper.common.client.module.ParseException

Description copied from interface: EPCompiler

Read the module by reading the text file and return the module.

Specified by:

readModule in interface EPCompiler

Parameters:

file - the file to read

Returns:

module

Throws:

IOException - when the file could not be read

com.espertech.esper.common.client.module.ParseException - when parsing of the module failed

readModule

public com.espertech.esper.common.client.module.Module readModule(URL url)
                                                           throws IOException,
                                                                  com.espertech.esper.common.client.module.ParseException

Description copied from interface: EPCompiler

Read the module by reading from the URL provided and return the module.

Specified by:

readModule in interface EPCompiler

Parameters:

url - the URL to read

Returns:

module

Throws:

IOException - when the url input stream could not be read

com.espertech.esper.common.client.module.ParseException - when parsing of the module failed

readModule

public com.espertech.esper.common.client.module.Module readModule(String resource,
                                                                  ClassLoader classLoader)
                                                           throws IOException,
                                                                  com.espertech.esper.common.client.module.ParseException

Description copied from interface: EPCompiler

Read the resource by opening from classpath and return the module.

Specified by:

readModule in interface EPCompiler

Parameters:

resource - name of the classpath resource

classLoader - classloader

Returns:

module module

Throws:

IOException - when the resource could not be read

com.espertech.esper.common.client.module.ParseException - when parsing of the module failed

syntaxValidate

public void syntaxValidate(com.espertech.esper.common.client.module.Module module,
                           CompilerArguments arguments)
                    throws EPCompileException

Description copied from interface: EPCompiler

Validate the syntax of the module.

Specified by:

syntaxValidate in interface EPCompiler

Parameters:

module - to validate

arguments - compiler arguments

Throws:

EPCompileException - when the EPL could not be parsed