class CompareExpression extends java.lang.Object implements Exp
Modifier and Type | Field and Description |
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static java.lang.String |
GREATER |
static java.lang.String |
GREATER_EQUAL |
static java.lang.String |
LESS |
static java.lang.String |
LESS_EQUAL |
Constructor and Description |
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CompareExpression(Val val1,
Val val2,
java.lang.String op)
Constructor.
|
Modifier and Type | Method and Description |
---|---|
void |
acceptVisit(ExpressionVisitor visitor)
Accept a visit from a tree visitor.
|
void |
appendTo(Select sel,
ExpContext ctx,
ExpState state,
SQLBuffer buf)
Append the SQL for this expression to the given buffer.
|
ExpState |
initialize(Select sel,
ExpContext ctx,
java.util.Map contains)
Initialize the expression.
|
void |
selectColumns(Select sel,
ExpContext ctx,
ExpState state,
boolean pks)
Select just the columns for this expression.
|
public static final java.lang.String LESS
public static final java.lang.String GREATER
public static final java.lang.String LESS_EQUAL
public static final java.lang.String GREATER_EQUAL
public ExpState initialize(Select sel, ExpContext ctx, java.util.Map contains)
Exp
initialize
in interface Exp
contains
- map of relation paths to the number of times
the paths appear in a contains() expression;
used to ensure paths used for contains() within
the same AND expression used different aliasespublic void appendTo(Select sel, ExpContext ctx, ExpState state, SQLBuffer buf)
Exp
public void selectColumns(Select sel, ExpContext ctx, ExpState state, boolean pks)
Exp
selectColumns
in interface Exp
public void acceptVisit(ExpressionVisitor visitor)
Expression
acceptVisit
in interface Expression
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