org.sqlproc.engine.impl

Class SqlMetaOperator

java.lang.Object

org.sqlproc.engine.impl.SqlMetaConst

org.sqlproc.engine.impl.SqlMetaOperator

All Implemented Interfaces:

SqlMetaElement, SqlMetaLogOperand, SqlMetaSimple

 class SqlMetaOperator
extends SqlMetaConst

A META SQL sub-element. It represents a dynamic SQL operator.

Author:

Vladimir Hudec

Field Summary

Fields

Modifier and Type	Field and Description
(package private) boolean	dynamicInputValue An indicator the dynamic input values are used.

Fields inherited from class org.sqlproc.engine.impl.SqlMetaConst

logger, values

Fields inherited from interface org.sqlproc.engine.impl.SqlMetaElement

AND_PREFIX, CONST_PREFIX, IDENT_PREFIX, IDENT_SEPARATOR, lCONST_PREFIX, lIDENT_PREFIX, OR_PREFIX, SET_PREFIX, VALUES_PREFIX, WHERE_PREFIX

Constructor Summary

Constructors

Constructor and Description
SqlMetaOperator(boolean dynamicInputValue, List<String> elements) Creates a new instance of this entity using the list of sub-elements.
SqlMetaOperator(SqlInputValue.Code caseConversion) Creates a new instance of this entity.
SqlMetaOperator(SqlInputValue.Code caseConversion, boolean not) Creates a new instance of this entity.
SqlMetaOperator(SqlInputValue.Code caseConversion, boolean not, SqlType type) Creates a new instance of this entity.

Method Summary

Methods

Modifier and Type	Method and Description
(package private) String	getData(SqlProcessContext ctx, Object obj) Returns a String representation of input values, after a possible transformation process.
(package private) String	getDefaultData() Returns a default input value in the case the input attribute is null.
(package private) Class<?>	getFieldType(SqlProcessContext ctx, Class<?> attributeType, String attributeName) Returns the static input attribute type.
(package private) Object	getInputValues(SqlProcessContext ctx) Returns the static or dynamic input values.
(package private) Object	getProperty(SqlProcessContext ctx, Object obj, String item) Returns the static input attribute value.

Methods inherited from class org.sqlproc.engine.impl.SqlMetaConst

addConst, getElements, getSqlType, isNot, process, processExpression, setElements, setMetaType, setNot, setValues

Methods inherited from class java.lang.Object

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

Field Detail

dynamicInputValue

boolean dynamicInputValue

An indicator the dynamic input values are used.

Constructor Detail

SqlMetaOperator

public SqlMetaOperator(SqlInputValue.Code caseConversion,
               boolean not,
               SqlType type)

Creates a new instance of this entity. Used from inside ANTLR parser.

Parameters:

caseConversion - which conversion should be done on inputValue

not - an indicator, which is used to control, how the input value is added to the final ANSI SQL

type - the type of this input value, which can be Hibernate or an internal type

SqlMetaOperator

public SqlMetaOperator(SqlInputValue.Code caseConversion,
               boolean not)

Creates a new instance of this entity. Used from inside ANTLR parser.

Parameters:

caseConversion - which conversion should be done on inputValue

not - an indicator, which is used to control, how the input value is added to the final ANSI SQL

SqlMetaOperator

public SqlMetaOperator(SqlInputValue.Code caseConversion)

Creates a new instance of this entity. Used from inside ANTLR parser.

Parameters:

caseConversion - which conversion should be done on inputValue

SqlMetaOperator

public SqlMetaOperator(boolean dynamicInputValue,
               List<String> elements)

Creates a new instance of this entity using the list of sub-elements.

Parameters:

dynamicInputValue - an indicator the dynamic input values are used

elements - the list of sub-elements

Method Detail

getInputValues

Object getInputValues(SqlProcessContext ctx)

Returns the static or dynamic input values. The standard input values are the static ones.

Overrides:

getInputValues in class SqlMetaConst

Parameters:

ctx - the crate for all input parameters and the context of processing

Returns:

the static or dynamic input values

getDefaultData

String getDefaultData()

Returns a default input value in the case the input attribute is null.

Overrides:

getDefaultData in class SqlMetaConst

Returns:

a default input value

getFieldType

Class<?> getFieldType(SqlProcessContext ctx,
                    Class<?> attributeType,
                    String attributeName)

Returns the static input attribute type.

Overrides:

getFieldType in class SqlMetaConst

Parameters:

ctx - the crate for all input parameters and the context of processing

attributeType - parents type

attributeName - the attribute name

Returns:

the static input attribute type

getProperty

Object getProperty(SqlProcessContext ctx,
                 Object obj,
                 String item)

Returns the static input attribute value.

Overrides:

getProperty in class SqlMetaConst

Parameters:

ctx - the crate for all input parameters and the context of processing

obj - the static input value POJO

item - the attribute name

Returns:

the static input attribute value

getData

String getData(SqlProcessContext ctx,
             Object obj)

Returns a String representation of input values, after a possible transformation process.

Overrides:

getData in class SqlMetaConst

Parameters:

ctx - the crate for all input parameters and the context of processing

obj - a raw input value

Returns:

the transformed input value