org.delia.db.sql.prepared

Class WhereClauseGenerator

java.lang.Object

org.delia.core.ServiceBase

org.delia.db.sql.prepared.WhereClauseGenerator

Direct Known Subclasses:

PostgresWhereClauseGenerator

public class WhereClauseGenerator
extends ServiceBase

Field Summary

Fields inherited from class org.delia.core.ServiceBase

et, factorySvc, log

Constructor Summary

Constructors

Constructor and Description
WhereClauseGenerator(FactoryService factorySvc, DTypeRegistry registry, VarEvaluator varEvaluator)

Method Summary

Modifier and Type	Method and Description
void	addWhereClauseIfNeeded(StrCreator sc, QuerySpec spec, FilterExp filter, String typeName, Table tbl, SqlStatement statement)
protected void	addWhereClauseOp(StrCreator sc, QuerySpec spec, String typeName, Table tbl, SqlStatement statement)
void	addWhereClauseOpFromPhrase(StrCreator sc, QuerySpec spec, WhereExpression express, Table tbl, SqlStatement statement)
protected void	addWhereClausePrimaryKey(StrCreator sc, QuerySpec spec, FilterExp filter, String typeName, Table tbl, SqlStatement statement)
protected void	adjustYearStuff(WhereOperand op1, WhereOperand op2)
protected void	doAddWhereClauseOp(StrCreator sc, QuerySpec spec, String typeName, Table tbl, SqlStatement statement)
protected String	doFn(WhereOperand val)
protected String	doInPhrase(StrCreator sc, InPhrase phrase, Table tbl, SqlStatement statement)
protected String	doLogicalPhrase(StrCreator sc, LogicalPhrase lphrase, Table tbl, SqlStatement statement)
protected String	doWherePhrase(StrCreator sc, WherePhrase phrase, Table tbl, SqlStatement statement)
protected Object	extractObj(Exp exp)
protected DType	findFieldType(DStructType dtype, String fieldName)
SqlStatement	generateAWhere(QuerySpec spec)
protected String	getColumnName(Exp op1)
protected Table	makeEmptyTable()
protected String	operandToSql(WhereOperand val, SqlStatement statement)
protected String	opToSql(String op)
protected DValue	valueInSql(Shape shape, Object value)
protected String	whereWord(QuerySpec spec)

Methods inherited from class java.lang.Object

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

Constructor Detail

WhereClauseGenerator

public WhereClauseGenerator(FactoryService factorySvc,
                            DTypeRegistry registry,
                            VarEvaluator varEvaluator)

Method Detail

generateAWhere

public SqlStatement generateAWhere(QuerySpec spec)

makeEmptyTable

protected Table makeEmptyTable()

addWhereClauseIfNeeded

public void addWhereClauseIfNeeded(StrCreator sc,
                                   QuerySpec spec,
                                   FilterExp filter,
                                   String typeName,
                                   Table tbl,
                                   SqlStatement statement)

addWhereClauseOp

protected void addWhereClauseOp(StrCreator sc,
                                QuerySpec spec,
                                String typeName,
                                Table tbl,
                                SqlStatement statement)

addWhereClausePrimaryKey

protected void addWhereClausePrimaryKey(StrCreator sc,
                                        QuerySpec spec,
                                        FilterExp filter,
                                        String typeName,
                                        Table tbl,
                                        SqlStatement statement)

whereWord

protected String whereWord(QuerySpec spec)

valueInSql

protected DValue valueInSql(Shape shape,
                            Object value)

findFieldType

protected DType findFieldType(DStructType dtype,
                              String fieldName)

doAddWhereClauseOp

protected void doAddWhereClauseOp(StrCreator sc,
                                  QuerySpec spec,
                                  String typeName,
                                  Table tbl,
                                  SqlStatement statement)

addWhereClauseOpFromPhrase

public void addWhereClauseOpFromPhrase(StrCreator sc,
                                       QuerySpec spec,
                                       WhereExpression express,
                                       Table tbl,
                                       SqlStatement statement)

doInPhrase

protected String doInPhrase(StrCreator sc,
                            InPhrase phrase,
                            Table tbl,
                            SqlStatement statement)

doLogicalPhrase

protected String doLogicalPhrase(StrCreator sc,
                                 LogicalPhrase lphrase,
                                 Table tbl,
                                 SqlStatement statement)

doWherePhrase

protected String doWherePhrase(StrCreator sc,
                               WherePhrase phrase,
                               Table tbl,
                               SqlStatement statement)

opToSql

protected String opToSql(String op)

operandToSql

protected String operandToSql(WhereOperand val,
                              SqlStatement statement)

extractObj

protected Object extractObj(Exp exp)

adjustYearStuff

protected void adjustYearStuff(WhereOperand op1,
                               WhereOperand op2)

doFn

protected String doFn(WhereOperand val)

getColumnName

protected String getColumnName(Exp op1)