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java.lang.Objectorg.apache.derby.impl.sql.compile.QueryTreeNode
org.apache.derby.impl.sql.compile.JavaValueNode
org.apache.derby.impl.sql.compile.SQLToJavaValueNode
public class SQLToJavaValueNode
This node type converts a value in the SQL domain to a value in the Java domain.
Field Summary | |
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(package private) LocalField |
returnsNullOnNullState
If set then this SQL value is being passed into a SQL function declared RETURNS NULL ON NULL input. |
(package private) ValueNode |
value
|
Fields inherited from class org.apache.derby.impl.sql.compile.JavaValueNode |
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forCallStatement, jsqlType |
Fields inherited from class org.apache.derby.impl.sql.compile.QueryTreeNode |
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AUTOINCREMENT_CREATE_MODIFY, AUTOINCREMENT_INC_INDEX, AUTOINCREMENT_IS_AUTOINCREMENT_INDEX, AUTOINCREMENT_START_INDEX, isPrivilegeCollectionRequired |
Constructor Summary | |
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SQLToJavaValueNode()
|
Method Summary | |
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(package private) void |
acceptChildren(Visitor v)
Accept the visitor for all visitable children of this node. |
JavaValueNode |
bindExpression(FromList fromList,
SubqueryList subqueryList,
java.util.Vector aggregateVector)
Bind this expression. |
boolean |
categorize(JBitSet referencedTabs,
boolean simplePredsOnly)
Categorize this predicate. |
void |
generateExpression(ExpressionClassBuilder acb,
MethodBuilder mb)
Generate code to get the Java value out of a SQL value. |
private void |
generateJavaValue(ExpressionClassBuilder acb,
MethodBuilder mbex)
Generate code to cast the SQLValue to a Java value. |
private void |
generateReturnsNullOnNullCheck(MethodBuilder mb)
Generate the code for the returns Null on Null input check.. |
private void |
generateSQLValue(ExpressionClassBuilder acb,
MethodBuilder mb)
Generate the SQLvalue that this node wraps. |
(package private) java.lang.Object |
getConstantValueAsObject()
|
DataTypeDescriptor |
getDataType()
Override behavior in superclass. |
java.lang.String |
getJavaTypeName()
Returns the name of the java class type that this node coerces to. |
JSQLType |
getJSQLType()
Get the JSQLType that corresponds to this node. |
protected int |
getOrderableVariantType()
Return the variant type for the underlying expression. |
java.lang.String |
getPrimitiveTypeName()
Returns the name of the java primitive type that this node coerces to. |
private java.lang.String |
getSQLValueInterfaceName()
Get the type name of the SQLValue we generate. |
(package private) ValueNode |
getSQLValueNode()
Get the SQL ValueNode that is being converted to a JavaValueNode |
void |
init(java.lang.Object value)
Constructor for a SQLToJavaValueNode |
void |
preprocess(int numTables,
FromList outerFromList,
SubqueryList outerSubqueryList,
PredicateList outerPredicateList)
Preprocess an expression tree. |
void |
printSubNodes(int depth)
Prints the sub-nodes of this object. |
JavaValueNode |
remapColumnReferencesToExpressions()
Remap all ColumnReferences in this tree to be clones of the underlying expression. |
Methods inherited from class org.apache.derby.impl.sql.compile.JavaValueNode |
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castToPrimitive, checkReliability, generate, generateReceiver, generateReceiver, getCollationType, getReceiverExpression, isPrimitiveType, mapToTypeID, markForCallStatement, markReturnValueDiscarded, mustCastToPrimitive, returnValueDiscarded, returnValueToSQLDomain, setCollationType, setJavaTypeName, valueReturnedToSQLDomain |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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ValueNode value
LocalField returnsNullOnNullState
Constructor Detail |
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public SQLToJavaValueNode()
Method Detail |
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public void init(java.lang.Object value)
init
in class QueryTreeNode
value
- A ValueNode representing a SQL value to convert to
the Java domain.public void printSubNodes(int depth)
printSubNodes
in class QueryTreeNode
depth
- The depth of this node in the treepublic java.lang.String getJavaTypeName() throws StandardException
getJavaTypeName
in class JavaValueNode
StandardException
public java.lang.String getPrimitiveTypeName() throws StandardException
getPrimitiveTypeName
in class JavaValueNode
StandardException
- Thrown on errorpublic JSQLType getJSQLType() throws StandardException
getJSQLType
in class JavaValueNode
StandardException
public JavaValueNode bindExpression(FromList fromList, SubqueryList subqueryList, java.util.Vector aggregateVector) throws StandardException
bindExpression
in class JavaValueNode
fromList
- The FROM list for the query this
expression is in, for binding columns.subqueryList
- The subquery list being built as we find
SubqueryNodesaggregateVector
- The aggregate vector being built as we find AggregateNodes
StandardException
- Thrown on errorValueNode.bindExpression(org.apache.derby.impl.sql.compile.FromList, org.apache.derby.impl.sql.compile.SubqueryList, java.util.Vector)
public DataTypeDescriptor getDataType() throws StandardException
getDataType
in class JavaValueNode
StandardException
public JavaValueNode remapColumnReferencesToExpressions() throws StandardException
remapColumnReferencesToExpressions
in class JavaValueNode
StandardException
- Thrown on errorValueNode.remapColumnReferencesToExpressions()
public boolean categorize(JBitSet referencedTabs, boolean simplePredsOnly) throws StandardException
categorize
in class JavaValueNode
referencedTabs
- JBitSet with bit map of referenced FromTablessimplePredsOnly
- Whether or not to consider method
calls, field references and conditional nodes
when building bit map
StandardException
- Thrown on errorValueNode.categorize(org.apache.derby.iapi.util.JBitSet, boolean)
public void preprocess(int numTables, FromList outerFromList, SubqueryList outerSubqueryList, PredicateList outerPredicateList) throws StandardException
preprocess
in class JavaValueNode
numTables
- Number of tables in the DML StatementouterFromList
- FromList from outer query blockouterSubqueryList
- SubqueryList from outer query blockouterPredicateList
- PredicateList from outer query block
StandardException
- Thrown on errorValueNode.preprocess(int, org.apache.derby.impl.sql.compile.FromList, org.apache.derby.impl.sql.compile.SubqueryList, org.apache.derby.impl.sql.compile.PredicateList)
protected int getOrderableVariantType() throws StandardException
getOrderableVariantType
in class JavaValueNode
StandardException
- thrown on errorpublic void generateExpression(ExpressionClassBuilder acb, MethodBuilder mb) throws StandardException
generateExpression
in class JavaValueNode
acb
- The ExpressionClassBuilder for the class being builtmb
- The method the expression will go into
StandardException
- Thrown on errorprivate void generateSQLValue(ExpressionClassBuilder acb, MethodBuilder mb) throws StandardException
acb
- The ExpressionClassBuilder for the class being builtmb
- The method the expression will go into
StandardException
- Thrown on errorprivate void generateJavaValue(ExpressionClassBuilder acb, MethodBuilder mbex) throws StandardException
acb
- The ExpressionClassBuilder for the class being builtmbex
- The method the expression will go into
StandardException
- Thrown on errorprivate void generateReturnsNullOnNullCheck(MethodBuilder mb)
private java.lang.String getSQLValueInterfaceName() throws StandardException
StandardException
- Thrown on errorValueNode getSQLValueNode()
java.lang.Object getConstantValueAsObject() throws StandardException
getConstantValueAsObject
in class JavaValueNode
StandardException
- Thrown on errorValueNode.getConstantValueAsObject()
void acceptChildren(Visitor v) throws StandardException
acceptChildren
in class QueryTreeNode
v
- the visitor
StandardException
- on error
|
Built on Thu 2010-12-23 20:49:13+0000, from revision ??? | ||||||||
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