org.apache.openjpa.jdbc.kernel.exps
Class Index
java.lang.Object
   org.apache.openjpa.jdbc.kernel.exps.AbstractVal
org.apache.openjpa.jdbc.kernel.exps.AbstractVal
       org.apache.openjpa.jdbc.kernel.exps.UnaryOp
org.apache.openjpa.jdbc.kernel.exps.UnaryOp
           org.apache.openjpa.jdbc.kernel.exps.Index
org.apache.openjpa.jdbc.kernel.exps.Index
- All Implemented Interfaces: 
- Serializable, Val, Value
-  class Index 
- extends UnaryOp
Index.
- Author:
- Catalina Wei
 
 
| 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 | 
 
 
 
| Methods inherited from class org.apache.openjpa.jdbc.kernel.exps.UnaryOp | 
| acceptVisit, calculateValue, getMetaData, getNoParen, getType, getValue, groupBy, initializeValue, length, load, orderBy, select, selectColumns, setImplicitType, setMetaData | 
 
| Methods inherited from class org.apache.openjpa.jdbc.kernel.exps.AbstractVal | 
| appendIndex, appendIsEmpty, appendIsNotEmpty, appendIsNotNull, appendIsNull, appendSize, appendType, getAlias, getId, getName, getPath, getSelectAs, isAggregate, isVariable, isXPath, setAlias, toDataStoreValue | 
 
| Methods inherited from class java.lang.Object | 
| clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait | 
 
Index
public Index(Val val)
initialize
public ExpState initialize(Select sel,
                           ExpContext ctx,
                           int flags)
- Description copied from interface: Val
- Initialize the value. This method should recursively initialize any
 sub-values.
 
- 
- Specified by:
- initializein interface- Val
- Overrides:
- initializein class- UnaryOp
 
- 
 
appendTo
public void appendTo(Select sel,
                     ExpContext ctx,
                     ExpState state,
                     SQLBuffer sql,
                     int index)
- Description copied from interface: Val
- Append the indexth SQL element to the given buffer.
 
- 
- Specified by:
- appendToin interface- Val
- Overrides:
- appendToin class- UnaryOp
 
- 
 
getType
protected Class getType(Class c)
- Description copied from class: UnaryOp
- Return the type of this value based on the argument type. Returns
 the argument type by default.
 
- 
- Overrides:
- getTypein class- UnaryOp
 
- 
 
getOperator
protected String getOperator()
- Description copied from class: UnaryOp
- Return the name of this operator.
 
- 
- Specified by:
- getOperatorin class- UnaryOp
 
- 
 
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