Class OpMultiply
- java.lang.Object
- org.springframework.expression.spel.ast.SpelNodeImpl
- org.springframework.expression.spel.ast.Operator
- org.springframework.expression.spel.ast.OpMultiply
public class OpMultiply extends Operator
Implements themultiplyoperator.Conversions and promotions are handled as defined in Section 5.6.2 of the Java Language Specification, with the addiction of
BigDecimal/BigIntegermanagement:If any of the operands is of a reference type, unboxing conversion (Section 5.1.8) is performed. Then:
If either operand is of typeBigDecimal, the other is converted toBigDecimal.
If either operand is of type double, the other is converted to double.
Otherwise, if either operand is of type float, the other is converted to float.
If either operand is of typeBigInteger, the other is converted toBigInteger.
Otherwise, if either operand is of type long, the other is converted to long.
Otherwise, both operands are converted to type int.- Since:
- 3.0
- Author:
- Andy Clement, Juergen Hoeller, Sam Brannen, Giovanni Dall'Oglio Risso
Nested Class Summary
Nested classes/interfaces inherited from class org.springframework.expression.spel.ast.Operator
Operator.DescriptorComparison
Field Summary
Fields inherited from class org.springframework.expression.spel.ast.Operator
leftActualDescriptor, rightActualDescriptor
Fields inherited from class org.springframework.expression.spel.ast.SpelNodeImpl
children, exitTypeDescriptor, pos
Fields inherited from interface org.springframework.asm.Opcodes
AALOAD, AASTORE, ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_DEPRECATED, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_MANDATED, ACC_MODULE, ACC_NATIVE, ACC_OPEN, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STATIC_PHASE, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_TRANSITIVE, ACC_VARARGS, ACC_VOLATILE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, ASM4, ASM5, ASM6, ASTORE, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DMUL, DNEG, DOUBLE, DREM, DRETURN, DSTORE, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F_APPEND, F_CHOP, F_FULL, F_NEW, F_SAME, F_SAME1, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAT, FMUL, FNEG, FREM, FRETURN, FSTORE, FSUB, GETFIELD, GETSTATIC, GOTO, H_GETFIELD, H_GETSTATIC, H_INVOKEINTERFACE, H_INVOKESPECIAL, H_INVOKESTATIC, H_INVOKEVIRTUAL, H_NEWINVOKESPECIAL, H_PUTFIELD, H_PUTSTATIC, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, IMUL, INEG, INSTANCEOF, INTEGER, INVOKEDYNAMIC, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISUB, IUSHR, IXOR, JSR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDIV, LLOAD, LMUL, LNEG, LONG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, NULL, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SWAP, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, TOP, UNINITIALIZED_THIS, V1_1, V1_2, V1_3, V1_4, V1_5, V1_6, V1_7, V1_8, V1_9
Constructor Summary
Constructors Constructor Description OpMultiply(int pos, SpelNodeImpl... operands)
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidgenerateCode(MethodVisitor mv, CodeFlow cf)Generate the bytecode for this node into the supplied visitor.TypedValuegetValueInternal(ExpressionState state)Implements themultiplyoperator directly here for certain types of supported operands and otherwise delegates to any registered overloader for types not supported here.booleanisCompilable()Check whether a node can be compiled to bytecode.Methods inherited from class org.springframework.expression.spel.ast.Operator
equalityCheck, generateComparisonCode, getLeftOperand, getOperatorName, getRightOperand, isCompilableOperatorUsingNumerics, toStringAST
Methods inherited from class org.springframework.expression.spel.ast.SpelNodeImpl
generateCodeForArgument, generateCodeForArguments, getChild, getChildCount, getEndPosition, getExitDescriptor, getObjectClass, getPreviousChild, getStartPosition, getTypedValue, getValue, getValue, getValueRef, isWritable, nextChildIs, setValue
Constructor Detail
OpMultiply
public OpMultiply(int pos, SpelNodeImpl... operands)
Method Detail
getValueInternal
public TypedValue getValueInternal(ExpressionState state) throws EvaluationException
Implements themultiplyoperator directly here for certain types of supported operands and otherwise delegates to any registered overloader for types not supported here.Supported operand types:
- numbers
- String and int ('abc' * 2 == 'abcabc')
- Specified by:
getValueInternalin classSpelNodeImpl- Throws:
EvaluationException
isCompilable
public boolean isCompilable()
Description copied from class:SpelNodeImplCheck whether a node can be compiled to bytecode. The reasoning in each node may be different but will typically involve checking whether the exit type descriptor of the node is known and any relevant child nodes are compilable.- Overrides:
isCompilablein classSpelNodeImpl- Returns:
trueif this node can be compiled to bytecode
generateCode
public void generateCode(MethodVisitor mv, CodeFlow cf)
Description copied from class:SpelNodeImplGenerate the bytecode for this node into the supplied visitor. Context info about the current expression being compiled is available in the codeflow object. For example it will include information about the type of the object currently on the stack.- Overrides:
generateCodein classSpelNodeImpl- Parameters:
mv- the ASM MethodVisitor into which code should be generatedcf- a context object with info about what is on the stack