de.mguennewig.pobjects
Class SQLEvalContext

java.lang.Object
  de.mguennewig.pobjects.EvalContext
      de.mguennewig.pobjects.SQLEvalContext

Direct Known Subclasses:

MySQLContainer.MySQLEvalContext, SQLiteContainer.SQLiteEvalContext

public class SQLEvalContext
extends EvalContext

Internal class to convert the internal term expressions into SQL statements.

Author:

Michael Günnewig

See Also:

Query, Term

Field Summary

Fields inherited from class de.mguennewig.pobjects.EvalContext

TABLE_PREFIX

Constructor Summary

SQLEvalContext(int numColumns, int dbCapabilities, java.lang.String schema)
Creates a new evaluation context.

Method Summary

void	addJoin(Predicate join)
void	addOrderBy(de.mguennewig.pobjects.Query.OrderByExpr orderBy)
void	addOrderBy(java.lang.String orderBy)
void	addResult(TableRef tr, Column col)
void	addResultPClassId(TableRef t, Column col)
TableRef	addTableExpr(TableExpr table)
void	addWhereConj(java.lang.String expr)
void	addWhereConj(Term term)
TableRef	deref(TableRef tr, ClassDecl te, Column c, boolean join)
java.util.List<java.lang.String>	getOrderBy()
java.util.List<java.lang.String>	getWhereList()
java.lang.String	restoreState(EvalState s, Term conj)
void	setForCount(boolean forCount)
java.lang.String	toSql()
java.lang.String	toString()

Methods inherited from class de.mguennewig.pobjects.EvalContext

addTableExprColumns, deref, deref, getCommand, getForCount, getLimit, getNumColumns, getOffset, getSchema, getSqlType, getSupportedJoins, getTableExpr, isDistinct, requiresOuterJoin, resolveSelector, setCommand, setDistinct, setLimit, setOffset, storeState, supportsBoolean, supportsInherits, supportsLimitOffset, supportsOracleJoin, supportsSQL99Join

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

SQLEvalContext

public SQLEvalContext(int numColumns,
                      int dbCapabilities,
                      java.lang.String schema)

Creates a new evaluation context.

Method Detail

getWhereList

public final java.util.List<java.lang.String> getWhereList()

Specified by:

getWhereList in class EvalContext

See Also:

Container.getCapabilities()

addOrderBy

public void addOrderBy(de.mguennewig.pobjects.Query.OrderByExpr orderBy)

Specified by:

addOrderBy in class EvalContext

addOrderBy

public final void addOrderBy(java.lang.String orderBy)

getOrderBy

public final java.util.List<java.lang.String> getOrderBy()

Specified by:

getOrderBy in class EvalContext

addResult

public final void addResult(TableRef tr,
                            Column col)

Specified by:

addResult in class EvalContext

addResultPClassId

public void addResultPClassId(TableRef t,
                              Column col)

addWhereConj

public void addWhereConj(Term term)

Specified by:

addWhereConj in class EvalContext

addWhereConj

public final void addWhereConj(java.lang.String expr)

addJoin

public void addJoin(Predicate join)

restoreState

public java.lang.String restoreState(EvalState s,
                                     Term conj)

Specified by:

restoreState in class EvalContext

setForCount

public void setForCount(boolean forCount)

Overrides:

setForCount in class EvalContext

deref

public TableRef deref(TableRef tr,
                      ClassDecl te,
                      Column c,
                      boolean join)

Specified by:

deref in class EvalContext

addTableExpr

public TableRef addTableExpr(TableExpr table)

Overrides:

addTableExpr in class EvalContext

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

toSql

public java.lang.String toSql()