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java.lang.Objectorg.apache.derby.impl.sql.compile.QueryTreeNode
org.apache.derby.impl.sql.compile.ValueNode
org.apache.derby.impl.sql.compile.ConstantNode
org.apache.derby.impl.sql.compile.XMLConstantNode
Field Summary | |
protected DataValueDescriptor |
value
|
Fields inherited from class org.apache.derby.impl.sql.compile.ValueNode |
clause, dataTypeServices, IN_HAVING_CLAUSE, IN_SELECT_LIST, IN_UNKNOWN_CLAUSE, IN_WHERE_CLAUSE, transformed |
Fields inherited from class org.apache.derby.impl.sql.compile.QueryTreeNode |
AUTOINCREMENT_INC_INDEX, AUTOINCREMENT_IS_AUTOINCREMENT_INDEX, AUTOINCREMENT_START_INDEX, beginOffset, endOffset |
Constructor Summary | |
XMLConstantNode()
|
Method Summary | |
ValueNode |
bindExpression(FromList fromList,
SubqueryList subqueryList,
java.util.Vector aggregateVector)
Bind this expression. |
boolean |
constantExpression(PredicateList whereClause)
Return whether or not this expression tree represents a constant value. |
(package private) void |
generateConstant(ExpressionClassBuilder acb,
MethodBuilder mb)
This generates the proper constant. |
void |
generateExpression(ExpressionClassBuilder acb,
MethodBuilder mb)
For a ConstantNode, we generate the equivalent literal value. |
ValueNode |
getClone()
Return a clone of this node. |
(package private) java.lang.Object |
getConstantValueAsObject()
Return an Object representing the bind time value of this expression tree. |
protected int |
getOrderableVariantType()
Return the variant type for the underlying expression. |
java.lang.String |
getString()
Return the value from this XMLConstantNode as a string. |
DataValueDescriptor |
getValue()
Get the value in this ConstantNode |
void |
init(java.lang.Object arg1)
Initializer for an XMLConstantNode. |
void |
init(java.lang.Object typeId,
java.lang.Object nullable,
java.lang.Object maximumWidth)
Initializer for non-numeric types |
boolean |
isCloneable()
Return whether or not this expression tree is cloneable. |
boolean |
isConstantExpression()
Return whether or not this expression tree represents a constant expression. |
boolean |
isNull()
Return whether or not this node represents a typed null constant. |
(package private) void |
setValue(DataValueDescriptor value)
Set the value in this ConstantNode. |
java.lang.String |
toString()
Convert this object to a String. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
protected DataValueDescriptor value
Constructor Detail |
public XMLConstantNode()
Method Detail |
public void init(java.lang.Object arg1) throws StandardException
init
in class QueryTreeNode
arg1
- The TypeId for the type of the node
StandardException
public java.lang.String getString() throws StandardException
StandardException
- Thrown on errorjava.lang.Object getConstantValueAsObject() throws StandardException
getConstantValueAsObject
in class ValueNode
StandardException
- Thrown on errorvoid generateConstant(ExpressionClassBuilder acb, MethodBuilder mb) throws StandardException
generateConstant
in class ConstantNode
acb
- The ExpressionClassBuilder for the class being builtmb
- The method the code to place the code
StandardException
- Thrown on errorpublic void init(java.lang.Object typeId, java.lang.Object nullable, java.lang.Object maximumWidth) throws StandardException
init
in class QueryTreeNode
typeId
- The Type ID of the datatypenullable
- True means the constant is nullablemaximumWidth
- The maximum number of bytes in the data value
StandardException
void setValue(DataValueDescriptor value)
public DataValueDescriptor getValue()
public java.lang.String toString()
toString
in class ValueNode
public boolean isCloneable()
isCloneable
in class ValueNode
public ValueNode getClone()
getClone
in class ValueNode
public ValueNode bindExpression(FromList fromList, SubqueryList subqueryList, java.util.Vector aggregateVector)
bindExpression
in class ValueNode
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
public boolean isConstantExpression()
isConstantExpression
in class ValueNode
public boolean constantExpression(PredicateList whereClause)
ValueNode
constantExpression
in class ValueNode
ValueNode.constantExpression(org.apache.derby.impl.sql.compile.PredicateList)
public void generateExpression(ExpressionClassBuilder acb, MethodBuilder mb) throws StandardException
generateExpression
in class ValueNode
acb
- The ExpressionClassBuilder for the class being builtmb
- The method the code to place the code
StandardException
- Thrown on errorpublic boolean isNull()
protected int getOrderableVariantType()
getOrderableVariantType
in class ValueNode
|
Built on Tue 2006-10-10 19:23:47+0200, from revision exported | |||||||||
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