|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Objectorg.h2.expression.Expression
org.h2.expression.Condition
org.h2.expression.CompareLike
public class CompareLike
Pattern matching comparison expression: WHERE NAME LIKE ?
Constructor Summary | |
---|---|
CompareLike(CompareMode compareMode,
java.lang.String defaultEscape,
Expression left,
Expression right,
Expression escape,
boolean regexp)
|
|
CompareLike(Database db,
Expression left,
Expression right,
Expression escape,
boolean regexp)
|
Method Summary | |
---|---|
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. |
java.lang.String |
getSQL()
Get the SQL statement of this expression. |
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. |
boolean |
test(java.lang.String testPattern,
java.lang.String value,
char escapeChar)
Test if the value matches the pattern. |
void |
updateAggregate(Session session)
Update an aggregate value. |
Methods inherited from class org.h2.expression.Condition |
---|
getDisplaySize, getPrecision, getScale, getType |
Methods inherited from class org.h2.expression.Expression |
---|
addFilterConditions, getAlias, getBooleanValue, getColumnName, getExpressionColumns, getExpressionColumns, getExpressionColumns, getNonAliasExpression, getNotIfPossible, getNullable, getSchemaName, getTableAlias, getTableName, isAutoIncrement, isConstant, isEverything, isValueSet, isWildcard, toString |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
---|
public CompareLike(Database db, Expression left, Expression right, Expression escape, boolean regexp)
public CompareLike(CompareMode compareMode, java.lang.String defaultEscape, Expression left, Expression right, Expression escape, boolean regexp)
Method Detail |
---|
public java.lang.String getSQL()
Expression
getSQL
in class Expression
public Expression optimize(Session session)
Expression
optimize
in class Expression
session
- the session
public void createIndexConditions(Session session, TableFilter filter)
Expression
createIndexConditions
in class Expression
session
- the sessionfilter
- the table filterpublic Value getValue(Session session)
Expression
getValue
in class Expression
session
- the session
public boolean test(java.lang.String testPattern, java.lang.String value, char escapeChar)
testPattern
- the patternvalue
- the valueescapeChar
- the escape character
public void mapColumns(ColumnResolver resolver, int level)
Expression
mapColumns
in class Expression
resolver
- the column resolverlevel
- the subquery nesting levelpublic void setEvaluatable(TableFilter tableFilter, boolean b)
Expression
setEvaluatable
in class Expression
tableFilter
- the table filterb
- true if the table filter can return valuepublic void updateAggregate(Session session)
Expression
updateAggregate
in class Expression
session
- the sessionpublic boolean isEverything(ExpressionVisitor visitor)
Expression
isEverything
in class Expression
visitor
- the visitor
public int getCost()
Expression
getCost
in class Expression
|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |