From fba467c255728922ede21e1e979db93a2ad4713e Mon Sep 17 00:00:00 2001 From: "Brian S. O'Neill" Date: Tue, 14 Oct 2008 23:36:03 +0000 Subject: Fix for bug where derived properties would cause non-existent state fields to be accessed. --- .../amazon/carbonado/gen/StorableGenerator.java | 174 ++++++++++++--------- 1 file changed, 103 insertions(+), 71 deletions(-) (limited to 'src/main/java') diff --git a/src/main/java/com/amazon/carbonado/gen/StorableGenerator.java b/src/main/java/com/amazon/carbonado/gen/StorableGenerator.java index e88ba39..d194634 100644 --- a/src/main/java/com/amazon/carbonado/gen/StorableGenerator.java +++ b/src/main/java/com/amazon/carbonado/gen/StorableGenerator.java @@ -2064,9 +2064,11 @@ public final class StorableGenerator { int ordinal = 0; int andMask = 0; int orMask = 0; + boolean anyNonDerived = false; for (StorableProperty property : mAllProperties.values()) { if (!property.isDerived()) { + anyNonDerived = true; if (property.isQuery()) { // Don't erase cached query. andMask |= PROPERTY_STATE_MASK << ((ordinal & 0xf) * 2); @@ -2084,23 +2086,27 @@ public final class StorableGenerator { ordinal++; if ((ordinal & 0xf) == 0 || ordinal >= count) { - String stateFieldName = PROPERTY_STATE_FIELD_NAME + ((ordinal - 1) >> 4); - b.loadThis(); - if (andMask == 0) { - b.loadConstant(orMask); - } else { + if (anyNonDerived) { + String stateFieldName = PROPERTY_STATE_FIELD_NAME + ((ordinal - 1) >> 4); b.loadThis(); - b.loadField(stateFieldName, TypeDesc.INT); - b.loadConstant(andMask); - b.math(Opcode.IAND); - if (orMask != 0) { + if (andMask == 0) { b.loadConstant(orMask); - b.math(Opcode.IOR); + } else { + b.loadThis(); + b.loadField(stateFieldName, TypeDesc.INT); + b.loadConstant(andMask); + b.math(Opcode.IAND); + if (orMask != 0) { + b.loadConstant(orMask); + b.math(Opcode.IOR); + } } + b.storeField(stateFieldName, TypeDesc.INT); } - b.storeField(stateFieldName, TypeDesc.INT); + andMask = 0; orMask = 0; + anyNonDerived = false; } } @@ -2121,9 +2127,11 @@ public final class StorableGenerator { int ordinal = 0; int andMask = 0; int orMask = 0; + boolean anyNonDerived = false; for (StorableProperty property : mAllProperties.values()) { if (!property.isDerived()) { + anyNonDerived = true; if (property.isJoin()) { // Erase cached join properties, but don't erase cached query. if (!property.isQuery()) { @@ -2137,9 +2145,29 @@ public final class StorableGenerator { ordinal++; if ((ordinal & 0xf) == 0 || ordinal >= count) { - String stateFieldName = PROPERTY_STATE_FIELD_NAME + ((ordinal - 1) >> 4); - if (name == MARK_ALL_PROPERTIES_DIRTY) { - if (orMask != 0 || andMask != 0) { + if (anyNonDerived) { + String stateFieldName = PROPERTY_STATE_FIELD_NAME + ((ordinal - 1) >> 4); + if (name == MARK_ALL_PROPERTIES_DIRTY) { + if (orMask != 0 || andMask != 0) { + b.loadThis(); // [this + b.loadThis(); // [this, this + b.loadField(stateFieldName, TypeDesc.INT); // [this, this.stateField + if (andMask != 0) { + b.loadConstant(~andMask); + b.math(Opcode.IAND); + } + if (orMask != 0) { + b.loadConstant(orMask); + b.math(Opcode.IOR); + } + b.storeField(stateFieldName, TypeDesc.INT); + } + } else { + // This is a great trick to convert all states of value 1 + // (clean) into value 3 (dirty). States 0, 2, and 3 stay the + // same. Since joins cannot have state 1, they aren't affected. + // stateField |= ((stateField & 0x55555555) << 1); + b.loadThis(); // [this b.loadThis(); // [this, this b.loadField(stateFieldName, TypeDesc.INT); // [this, this.stateField @@ -2147,36 +2175,19 @@ public final class StorableGenerator { b.loadConstant(~andMask); b.math(Opcode.IAND); } - if (orMask != 0) { - b.loadConstant(orMask); - b.math(Opcode.IOR); - } + b.dup(); // [this, this.stateField, this.stateField + b.loadConstant(0x55555555); + b.math(Opcode.IAND); // [this, this.stateField, this.stateField &0x55555555 + b.loadConstant(1); + b.math(Opcode.ISHL); // [this, this.stateField, orMaskValue + b.math(Opcode.IOR); // [this, newStateFieldValue b.storeField(stateFieldName, TypeDesc.INT); } - } else { - // This is a great trick to convert all states of value 1 - // (clean) into value 3 (dirty). States 0, 2, and 3 stay the - // same. Since joins cannot have state 1, they aren't affected. - // stateField |= ((stateField & 0x55555555) << 1); - - b.loadThis(); // [this - b.loadThis(); // [this, this - b.loadField(stateFieldName, TypeDesc.INT); // [this, this.stateField - if (andMask != 0) { - b.loadConstant(~andMask); - b.math(Opcode.IAND); - } - b.dup(); // [this, this.stateField, this.stateField - b.loadConstant(0x55555555); - b.math(Opcode.IAND); // [this, this.stateField, this.stateField & 0x55555555 - b.loadConstant(1); - b.math(Opcode.ISHL); // [this, this.stateField, orMaskValue - b.math(Opcode.IOR); // [this, newStateFieldValue - b.storeField(stateFieldName, TypeDesc.INT); } andMask = 0; orMask = 0; + anyNonDerived = false; } } @@ -2195,8 +2206,11 @@ public final class StorableGenerator { int ordinal = 0; int andMask = 0xffffffff; int orMask = 0; + boolean anyNonDerived = false; + for (StorableProperty property : mAllProperties.values()) { if (!property.isDerived()) { + anyNonDerived = true; if (property == ordinaryProperty) { orMask |= PROPERTY_STATE_DIRTY << ((ordinal & 0xf) * 2); } else if (property.isJoin()) { @@ -2208,9 +2222,10 @@ public final class StorableGenerator { } } } + ordinal++; if ((ordinal & 0xf) == 0 || ordinal >= count) { - if (andMask != 0xffffffff || orMask != 0) { + if (anyNonDerived && (andMask != 0xffffffff || orMask != 0)) { String stateFieldName = PROPERTY_STATE_FIELD_NAME + ((ordinal - 1) >> 4); b.loadThis(); b.loadThis(); @@ -2225,8 +2240,10 @@ public final class StorableGenerator { } b.storeField(stateFieldName, TypeDesc.INT); } + andMask = 0xffffffff; orMask = 0; + anyNonDerived = false; } } } @@ -2236,8 +2253,11 @@ public final class StorableGenerator { int count = mAllProperties.size(); int ordinal = 0; int andMask = 0; + boolean anyNonDerived = false; + for (StorableProperty property : mAllProperties.values()) { if (!property.isDerived()) { + anyNonDerived = true; if (!property.isJoin() && (!property.isPrimaryKeyMember() || includePk)) { // Logical 'and' will convert state 1 (clean) to state 0, so // that it will be ignored. State 3 (dirty) is what we're @@ -2247,16 +2267,21 @@ public final class StorableGenerator { andMask |= 2 << ((ordinal & 0xf) * 2); } } + ordinal++; if ((ordinal & 0xf) == 0 || ordinal >= count) { - String stateFieldName = PROPERTY_STATE_FIELD_NAME + ((ordinal - 1) >> 4); - b.loadThis(); - b.loadField(stateFieldName, TypeDesc.INT); - b.loadConstant(andMask); - b.math(Opcode.IAND); - // At least one property is dirty, so short circuit. - b.ifZeroComparisonBranch(label, "!="); + if (anyNonDerived) { + String stateFieldName = PROPERTY_STATE_FIELD_NAME + ((ordinal - 1) >> 4); + b.loadThis(); + b.loadField(stateFieldName, TypeDesc.INT); + b.loadConstant(andMask); + b.math(Opcode.IAND); + // At least one property is dirty, so short circuit. + b.ifZeroComparisonBranch(label, "!="); + } + andMask = 0; + anyNonDerived = false; } } } @@ -2305,45 +2330,52 @@ public final class StorableGenerator { int ordinal = 0; int mask = 0; + boolean anyNonDerived = false; + for (StorableProperty property : mAllProperties.values()) { if (!property.isDerived()) { + anyNonDerived = true; if (properties.containsKey(property.getName())) { mask |= PROPERTY_STATE_MASK << ((ordinal & 0xf) * 2); } } + ordinal++; - if (((ordinal & 0xf) == 0 || ordinal >= mAllProperties.size()) && mask != 0) { - // This is a great trick to convert all states of value 1 - // (clean) into value 3 (dirty). States 0, 2, and 3 stay the - // same. Since joins cannot have state 1, they aren't affected. - // stateField | ((stateField & 0x55555555) << 1); + if ((ordinal & 0xf) == 0 || ordinal >= mAllProperties.size()) { + if (anyNonDerived && mask != 0) { + // This is a great trick to convert all states of value 1 + // (clean) into value 3 (dirty). States 0, 2, and 3 stay the + // same. Since joins cannot have state 1, they aren't affected. + // stateField | ((stateField & 0x55555555) << 1); - b.loadThis(); - b.loadField(PROPERTY_STATE_FIELD_NAME + ((ordinal - 1) >> 4), TypeDesc.INT); - b.dup(); // [this.stateField, this.stateField - b.loadConstant(0x55555555); - b.math(Opcode.IAND); // [this.stateField, this.stateField & 0x55555555 - b.loadConstant(1); - b.math(Opcode.ISHL); // [this.stateField, orMaskValue - b.math(Opcode.IOR); // [newStateFieldValue + b.loadThis(); + b.loadField(PROPERTY_STATE_FIELD_NAME + ((ordinal - 1) >> 4), TypeDesc.INT); + b.dup(); // [this.stateField, this.stateField + b.loadConstant(0x55555555); + b.math(Opcode.IAND); // [this.stateField, this.stateField & 0x55555555 + b.loadConstant(1); + b.math(Opcode.ISHL); // [this.stateField, orMaskValue + b.math(Opcode.IOR); // [newStateFieldValue - // Flip all bits for property states. If final result is - // non-zero, then there were uninitialized properties. + // Flip all bits for property states. If final result is + // non-zero, then there were uninitialized properties. - b.loadConstant(mask); - b.math(Opcode.IXOR); - if (mask != 0xffffffff) { b.loadConstant(mask); - b.math(Opcode.IAND); - } + b.math(Opcode.IXOR); + if (mask != 0xffffffff) { + b.loadConstant(mask); + b.math(Opcode.IAND); + } - Label cont = b.createLabel(); - b.ifZeroComparisonBranch(cont, "=="); - b.loadConstant(false); - b.returnValue(TypeDesc.BOOLEAN); - cont.setLocation(); + Label cont = b.createLabel(); + b.ifZeroComparisonBranch(cont, "=="); + b.loadConstant(false); + b.returnValue(TypeDesc.BOOLEAN); + cont.setLocation(); + } mask = 0; + anyNonDerived = false; } } -- cgit v1.2.3