Top Description Fields Constructors Methods
org.apache.derby.impl.sql.compile

public final Class LengthOperatorNode

extends UnaryOperatorNode
Class Inheritance
Imports
java.sql.Types, java.util.List, org.apache.derby.shared.common.error.StandardException, org.apache.derby.shared.common.reference.ClassName, .SQLState, org.apache.derby.iapi.services.context.ContextManager, org.apache.derby.shared.common.sanity.SanityManager, org.apache.derby.iapi.types.DataTypeDescriptor, .TypeId
This node represents a unary XXX_length operator

Field Summary

Modifier and TypeField and Description
private int
parameterType

private int
parameterWidth

Inherited from org.apache.derby.impl.sql.compile.UnaryOperatorNode:
K_BASEK_XMLPARSEK_XMLSERIALIZEkindmethodNameoperandoperatorreceiverInterfaceTyperesultInterfaceTypeUnaryArgTypesUnaryMethodNamesUnaryOperatorsUnaryResultTypes

Constructor Summary

AccessConstructor and Description
pack-priv
LengthOperatorNode(ValueNode operator, ContextManager cm)

Method Summary

Modifier and TypeMethod and Description
pack-priv ValueNode

Returns:

The new top of the expression tree.
bindExpression(FromList
The query's FROM list
fromList, SubqueryList
The subquery list being built as we find SubqueryNodes
subqueryList, List<AggregateNode>
The aggregate list being built as we find AggregateNodes
aggregates)

Overrides org.apache.derby.impl.sql.compile.UnaryOperatorNode.bindExpression.

Bind this operator

pack-priv void
bindParameter()

Overrides org.apache.derby.impl.sql.compile.UnaryOperatorNode.bindParameter.

Bind a ?

pack-priv String
getReceiverInterfaceName()

Overrides org.apache.derby.impl.sql.compile.UnaryOperatorNode.getReceiverInterfaceName.

This is a length operator node.

Inherited from org.apache.derby.impl.sql.compile.UnaryOperatorNode:
acceptChildrenaddXmlOpMethodParamsbindOperandcategorizeconstantExpressiongenerateExpressiongetOperandgetOperatorStringgetOrderableVariantTypegetParameterOperandisConstantExpressionisEquivalentisSameNodeKindpreprocessprintSubNodesremapColumnReferencesToExpressionssetMethodNamesetOperatortoString

Field Detail

parameterTypeback to summary
private int parameterType
parameterWidthback to summary
private int parameterWidth

Constructor Detail

LengthOperatorNodeback to summary
pack-priv LengthOperatorNode(ValueNode operator, ContextManager cm) throws StandardException

Method Detail

bindExpressionback to summary
pack-priv ValueNode bindExpression(FromList fromList, SubqueryList subqueryList, List<AggregateNode> aggregates) throws StandardException

Overrides org.apache.derby.impl.sql.compile.UnaryOperatorNode.bindExpression.

Bind this operator

Parameters
fromList:FromList

The query's FROM list

subqueryList:SubqueryList

The subquery list being built as we find SubqueryNodes

aggregates:List<AggregateNode>

The aggregate list being built as we find AggregateNodes

Returns:ValueNode

The new top of the expression tree.

Annotations
@Override
Exceptions
StandardException:
Thrown on error
bindParameterback to summary
pack-priv void bindParameter() throws StandardException

Overrides org.apache.derby.impl.sql.compile.UnaryOperatorNode.bindParameter.

Bind a ? parameter operand of the XXX_length function.

Annotations
@Override
Exceptions
StandardException:
Thrown on error
getReceiverInterfaceNameback to summary
pack-priv String getReceiverInterfaceName()

Overrides org.apache.derby.impl.sql.compile.UnaryOperatorNode.getReceiverInterfaceName.

This is a length operator node. Overrides this method in UnaryOperatorNode for code generation purposes.

Annotations
@Override