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java.lang.Objectorg.apache.openjpa.jdbc.kernel.exps.AbstractVal
org.apache.openjpa.jdbc.kernel.exps.Args
public class Args
A list of arguments to a multi-argument function.
| Field Summary |
|---|
| Fields inherited from class org.apache.openjpa.jdbc.kernel.exps.AbstractVal |
|---|
FALSE, TRUE |
| Fields inherited from interface org.apache.openjpa.jdbc.kernel.exps.Val |
|---|
ABS_VAL, ARGS_VAL, CMP_EQUAL, COALESCE_VAL, CONCAT_VAL, FORCE_OUTER, GENERALCASE_VAL, INDEXOF_VAL, JOIN_REL, LENGTH_VAL, LOCATE_VAL, LOWER_VAL, MATH_VAL, NULL_CMP, NULLIF_VAL, SIMPLECASE_VAL, SQRT_VAL, SUBSTRING_VAL, TRIM_VAL, UPPER_VAL, VAL, WHENCONDITION_VAL, WHENSCALAR_VAL |
| Constructor Summary | |
|---|---|
Args(Val... values)
|
|
Args(Val val1,
Val val2)
Constructor. |
|
| Method Summary | |
|---|---|
void |
acceptVisit(ExpressionVisitor visitor)
Accept a visit from a tree visitor. |
void |
appendIsEmpty(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql)
Append the SQL testing whether this value is empty to the given buffer. |
void |
appendIsNotEmpty(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql)
Append the SQL testing whether this value is not empty to the given buffer. |
void |
appendIsNotNull(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql)
Append the SQL testing whether this value is not null to the given buffer. |
void |
appendIsNull(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql)
Append the SQL testing whether this value is null to the given buffer. |
void |
appendSize(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql)
Append the SQL checking the size of this value. |
void |
appendTo(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql,
int index)
Append the indexth SQL element to the given buffer. |
void |
appendTo(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql,
int index,
String operator)
|
void |
calculateValue(Select sel,
ExpContext ctx,
ExpState state,
Val other,
ExpState otherState)
Calculate and cache the SQL for this value. |
int |
getId()
|
ClassMetaData |
getMetaData()
Return any associated persistent type. |
Class |
getType()
Return the expected type for this value, or Object if
the type is unknown. |
Class[] |
getTypes()
|
Val[] |
getVals()
|
Value[] |
getValues()
Return the values that make up the arguments. |
void |
groupBy(Select sel,
ExpContext ctx,
ExpState state)
Group by this value. |
ExpState |
initialize(Select sel,
ExpContext ctx,
int flags)
Initialize the value. |
boolean |
isVariable()
Return true if this value is a variable. |
int |
length(Select sel,
ExpContext ctx,
ExpState state)
Return the number of SQL elements in this value. |
Object |
load(ExpContext ctx,
ExpState state,
Result res)
Load the data for this value. |
FilterValue[] |
newFilterValues(Select sel,
ExpContext ctx,
ExpState state)
Return a filter value for each argument. |
void |
orderBy(Select sel,
ExpContext ctx,
ExpState state,
boolean asc)
Order by this value. |
void |
select(Select sel,
ExpContext ctx,
ExpState state,
boolean pks)
Select the data for this value. |
void |
selectColumns(Select sel,
ExpContext ctx,
ExpState state,
boolean pks)
Select just the columns for this value. |
void |
setImplicitType(Class type)
Set the implicit type of the value, based on how it is used in the filter. |
void |
setMetaData(ClassMetaData meta)
Associate a persistent type with this value. |
| Methods inherited from class org.apache.openjpa.jdbc.kernel.exps.AbstractVal |
|---|
appendIndex, appendType, getAlias, getName, getPath, getSelectAs, isAggregate, isXPath, setAlias, toDataStoreValue |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Methods inherited from interface org.apache.openjpa.kernel.exps.Value |
|---|
getAlias, getName, getPath, getSelectAs, isAggregate, isXPath, setAlias |
| Constructor Detail |
|---|
public Args(Val val1,
Val val2)
public Args(Val... values)
| Method Detail |
|---|
public FilterValue[] newFilterValues(Select sel,
ExpContext ctx,
ExpState state)
public Value[] getValues()
Arguments
getValues in interface Argumentspublic Val[] getVals()
public ClassMetaData getMetaData()
Value
getMetaData in interface Valuepublic void setMetaData(ClassMetaData meta)
Value
setMetaData in interface Valuepublic boolean isVariable()
Value
isVariable in interface ValueisVariable in class AbstractValpublic Class getType()
ValueObject if
the type is unknown.
getType in interface Valuepublic Class[] getTypes()
public void setImplicitType(Class type)
ValueObject from Value.getType().
setImplicitType in interface Value
public ExpState initialize(Select sel,
ExpContext ctx,
int flags)
Val
initialize in interface Val
public void select(Select sel,
ExpContext ctx,
ExpState state,
boolean pks)
Val
select in interface Val
public void selectColumns(Select sel,
ExpContext ctx,
ExpState state,
boolean pks)
Val
selectColumns in interface Val
public void groupBy(Select sel,
ExpContext ctx,
ExpState state)
Val
groupBy in interface Val
public void orderBy(Select sel,
ExpContext ctx,
ExpState state,
boolean asc)
Val
orderBy in interface Val
public Object load(ExpContext ctx,
ExpState state,
Result res)
Val
load in interface Val
public void calculateValue(Select sel,
ExpContext ctx,
ExpState state,
Val other,
ExpState otherState)
Vallength or any append methods.
calculateValue in interface Valother - the value being compared to, or null if not a comparison
public int length(Select sel,
ExpContext ctx,
ExpState state)
Val
length in interface Val
public void appendTo(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql,
int index)
Valindexth SQL element to the given buffer.
appendTo in interface Val
public void appendTo(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql,
int index,
String operator)
public void appendIsEmpty(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql)
Val
appendIsEmpty in interface ValappendIsEmpty in class AbstractVal
public void appendIsNotEmpty(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql)
Val
appendIsNotEmpty in interface ValappendIsNotEmpty in class AbstractVal
public void appendSize(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql)
Val
appendSize in interface ValappendSize in class AbstractVal
public void appendIsNull(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql)
Val
appendIsNull in interface ValappendIsNull in class AbstractVal
public void appendIsNotNull(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer sql)
Val
appendIsNotNull in interface ValappendIsNotNull in class AbstractValpublic void acceptVisit(ExpressionVisitor visitor)
Value
acceptVisit in interface ValueacceptVisit in class AbstractValpublic int getId()
getId in interface ValgetId in class AbstractVal
|
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