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java.lang.Objectorg.h2.expression.Expression
org.h2.expression.ConditionAndOr
public class ConditionAndOr
An 'and' or 'or' condition as in WHERE ID=1 AND NAME=?
| Field Summary | |
|---|---|
static int |
AND
The AND condition type as in ID=1 AND NAME='Hello'. |
static int |
OR
The OR condition type as in ID=1 OR NAME='Hello'. |
| Constructor Summary | |
|---|---|
ConditionAndOr(int andOrType,
Expression left,
Expression right)
|
|
| Method Summary | |
|---|---|
void |
addFilterConditions(TableFilter filter,
boolean outerJoin)
Add conditions to a table filter if they can be evaluated. |
void |
createIndexConditions(Session session,
TableFilter filter)
Create index conditions if possible and attach them to the table filter. |
int |
getCost()
Estimate the cost to process the expression. |
int |
getDisplaySize()
Get the display size of this expression. |
Expression |
getExpression(boolean getLeft)
Get the left or the right sub-expression of this condition. |
Expression |
getNotIfPossible(Session session)
If it is possible, return the negated expression. |
long |
getPrecision()
Get the precision of this expression. |
int |
getScale()
Get the scale of this expression. |
java.lang.String |
getSQL()
Get the SQL statement of this expression. |
int |
getType()
Return the data type. |
Value |
getValue(Session session)
Return the resulting value for the current row. |
boolean |
isEverything(ExpressionVisitor visitor)
Check if this expression and all sub-expressions can fulfill a criteria. |
void |
mapColumns(ColumnResolver resolver,
int level)
Map the columns of the resolver to expression columns. |
Expression |
optimize(Session session)
Try to optimize the expression. |
void |
setEvaluatable(TableFilter tableFilter,
boolean b)
Tell the expression columns whether the table filter can return values now. |
void |
updateAggregate(Session session)
Update an aggregate value. |
| Methods inherited from class org.h2.expression.Expression |
|---|
getAlias, getBooleanValue, getColumnName, getExpressionColumns, getExpressionColumns, getNonAliasExpression, getNullable, getSchemaName, getTableAlias, getTableName, isAutoIncrement, isConstant, isValueSet, isWildcard, toString |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Field Detail |
|---|
public static final int AND
public static final int OR
| Constructor Detail |
|---|
public ConditionAndOr(int andOrType,
Expression left,
Expression right)
| Method Detail |
|---|
public java.lang.String getSQL()
Expression
getSQL in class Expression
public void createIndexConditions(Session session,
TableFilter filter)
Expression
createIndexConditions in class Expressionsession - the sessionfilter - the table filterpublic Expression getNotIfPossible(Session session)
Expression
getNotIfPossible in class Expressionsession - the session
public Value getValue(Session session)
Expression
getValue in class Expressionsession - the session
public Expression optimize(Session session)
Expression
optimize in class Expressionsession - the session
public void addFilterConditions(TableFilter filter,
boolean outerJoin)
Expression
addFilterConditions in class Expressionfilter - the table filterouterJoin - if the expression is part of an outer join
public void mapColumns(ColumnResolver resolver,
int level)
Expression
mapColumns in class Expressionresolver - the column resolverlevel - the subquery nesting level
public void setEvaluatable(TableFilter tableFilter,
boolean b)
Expression
setEvaluatable in class ExpressiontableFilter - the table filterb - true if the table filter can return valuepublic void updateAggregate(Session session)
Expression
updateAggregate in class Expressionsession - the sessionpublic boolean isEverything(ExpressionVisitor visitor)
Expression
isEverything in class Expressionvisitor - the visitor
public int getCost()
Expression
getCost in class Expressionpublic Expression getExpression(boolean getLeft)
getLeft - true to get the left sub-expression, false to get the right
sub-expression.
public int getType()
Expression
getType in class Expressionpublic int getScale()
Expression
getScale in class Expressionpublic long getPrecision()
Expression
getPrecision in class Expressionpublic int getDisplaySize()
Expression
getDisplaySize in class Expression
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